./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.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 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:55:22,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:55:22,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:55:23,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:55:23,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:55:23,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:55:23,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:55:23,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:55:23,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:55:23,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:55:23,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:55:23,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:55:23,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:55:23,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:55:23,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:55:23,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:55:23,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:55:23,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:55:23,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:55:23,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:55:23,062 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:55:23,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:55:23,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:55:23,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:55:23,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:55:23,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:55:23,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:55:23,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:55:23,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:55:23,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:55:23,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:55:23,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:55:23,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:55:23,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:55:23,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:55:23,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:55:23,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:55:23,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:55:23,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:55:23,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:55:23,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:55:23,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:55:23,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:55:23,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:55:23,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:55:23,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:55:23,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:55:23,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:55:23,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:55:23,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:55:23,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:55:23,118 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:55:23,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:55:23,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:55:23,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:55:23,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:55:23,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:55:23,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:55:23,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:55:23,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:55:23,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:55:23,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:55:23,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:55:23,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:55:23,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:55:23,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:55:23,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:55:23,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:55:23,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:55:23,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:55:23,124 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:55:23,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:55:23,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:55:23,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91f73b42c8fe3db55fbb7a7497120df3b9b2fa6084f78fe538d2c182c8caed17 [2022-07-20 02:55:23,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:55:23,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:55:23,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:55:23,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:55:23,385 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:55:23,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-20 02:55:23,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416b877b/dde2b1d438a6418384ef55e5337bc83e/FLAG7960289ef [2022-07-20 02:55:24,386 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:55:24,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-20 02:55:24,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416b877b/dde2b1d438a6418384ef55e5337bc83e/FLAG7960289ef [2022-07-20 02:55:24,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4416b877b/dde2b1d438a6418384ef55e5337bc83e [2022-07-20 02:55:24,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:55:24,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:55:24,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:55:24,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:55:24,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:55:24,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:55:24" (1/1) ... [2022-07-20 02:55:24,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162c906e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:24, skipping insertion in model container [2022-07-20 02:55:24,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:55:24" (1/1) ... [2022-07-20 02:55:24,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:55:25,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:55:31,272 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-07-20 02:55:31,288 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-07-20 02:55:31,290 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-07-20 02:55:31,291 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-07-20 02:55:31,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:55:31,429 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:55:32,121 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583669,583682] [2022-07-20 02:55:32,122 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[583838,583851] [2022-07-20 02:55:32,122 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584005,584018] [2022-07-20 02:55:32,123 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_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[584173,584186] [2022-07-20 02:55:32,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:55:32,574 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:55:32,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32 WrapperNode [2022-07-20 02:55:32,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:55:32,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:55:32,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:55:32,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:55:32,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:32,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,208 INFO L137 Inliner]: procedures = 798, calls = 5637, calls flagged for inlining = 404, calls inlined = 343, statements flattened = 11393 [2022-07-20 02:55:33,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:55:33,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:55:33,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:55:33,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:55:33,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:55:33,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:55:33,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:55:33,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:55:33,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (1/1) ... [2022-07-20 02:55:33,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:55:33,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:55:33,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:55:33,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:55:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 02:55:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 02:55:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-07-20 02:55:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-07-20 02:55:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-07-20 02:55:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-07-20 02:55:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-07-20 02:55:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-07-20 02:55:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:55:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:55:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-07-20 02:55:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-07-20 02:55:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-07-20 02:55:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-07-20 02:55:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 02:55:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 02:55:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-20 02:55:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-20 02:55:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 02:55:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 02:55:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-07-20 02:55:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-07-20 02:55:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 02:55:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 02:55:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-07-20 02:55:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-07-20 02:55:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-07-20 02:55:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-07-20 02:55:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 02:55:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 02:55:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 02:55:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 02:55:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-07-20 02:55:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-07-20 02:55:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 02:55:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 02:55:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 02:55:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 02:55:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-07-20 02:55:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-07-20 02:55:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-07-20 02:55:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-07-20 02:55:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 02:55:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 02:55:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-07-20 02:55:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-07-20 02:55:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:55:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:55:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:55:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:55:33,848 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-07-20 02:55:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-07-20 02:55:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 02:55:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-07-20 02:55:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-07-20 02:55:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-07-20 02:55:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-07-20 02:55:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-20 02:55:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-20 02:55:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:55:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:55:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-20 02:55:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-20 02:55:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 02:55:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 02:55:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 02:55:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 02:55:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 02:55:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 02:55:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-07-20 02:55:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-07-20 02:55:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-07-20 02:55:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-07-20 02:55:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:55:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:55:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:55:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-07-20 02:55:33,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-07-20 02:55:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-07-20 02:55:33,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-07-20 02:55:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:55:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-07-20 02:55:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-07-20 02:55:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-07-20 02:55:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-07-20 02:55:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-07-20 02:55:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-07-20 02:55:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:55:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:55:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:55:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:55:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:55:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 02:55:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-07-20 02:55:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-07-20 02:55:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-20 02:55:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-20 02:55:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-07-20 02:55:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-07-20 02:55:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-20 02:55:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-20 02:55:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:55:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:55:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-07-20 02:55:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-07-20 02:55:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:55:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:55:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-07-20 02:55:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-07-20 02:55:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 02:55:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 02:55:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-07-20 02:55:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-07-20 02:55:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:55:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:55:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-07-20 02:55:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-07-20 02:55:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-20 02:55:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-20 02:55:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-07-20 02:55:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-07-20 02:55:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 02:55:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 02:55:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:55:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:55:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:55:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-20 02:55:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-20 02:55:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-20 02:55:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-20 02:55:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 02:55:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 02:55:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-07-20 02:55:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-07-20 02:55:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 02:55:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-07-20 02:55:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-07-20 02:55:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 02:55:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 02:55:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-07-20 02:55:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-07-20 02:55:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-07-20 02:55:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-07-20 02:55:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 02:55:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 02:55:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-20 02:55:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-20 02:55:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-20 02:55:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-20 02:55:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-20 02:55:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-07-20 02:55:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:55:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:55:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-20 02:55:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-20 02:55:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 02:55:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 02:55:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-07-20 02:55:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-07-20 02:55:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 02:55:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 02:55:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-07-20 02:55:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-07-20 02:55:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-07-20 02:55:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-07-20 02:55:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-07-20 02:55:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-07-20 02:55:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-07-20 02:55:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-07-20 02:55:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:55:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 02:55:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 02:55:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:55:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-07-20 02:55:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-07-20 02:55:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 02:55:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 02:55:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-07-20 02:55:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-07-20 02:55:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:55:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:55:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-07-20 02:55:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-07-20 02:55:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-20 02:55:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-20 02:55:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-07-20 02:55:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-07-20 02:55:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 02:55:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 02:55:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-07-20 02:55:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-07-20 02:55:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-20 02:55:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-20 02:55:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-07-20 02:55:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-07-20 02:55:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-07-20 02:55:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-07-20 02:55:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 02:55:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 02:55:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-07-20 02:55:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-07-20 02:55:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 02:55:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-07-20 02:55:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-07-20 02:55:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:55:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:55:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-07-20 02:55:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-07-20 02:55:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-20 02:55:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-20 02:55:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-07-20 02:55:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-07-20 02:55:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-20 02:55:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-07-20 02:55:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 02:55:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 02:55:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-07-20 02:55:33,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-07-20 02:55:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-07-20 02:55:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-07-20 02:55:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 02:55:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 02:55:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:55:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:55:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-20 02:55:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-20 02:55:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-07-20 02:55:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-07-20 02:55:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:55:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:55:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 02:55:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 02:55:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-07-20 02:55:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-07-20 02:55:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-07-20 02:55:33,885 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-07-20 02:55:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-07-20 02:55:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-07-20 02:55:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-07-20 02:55:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-07-20 02:55:33,890 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-07-20 02:55:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-07-20 02:55:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:55:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:55:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-07-20 02:55:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-07-20 02:55:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 02:55:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 02:55:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-07-20 02:55:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-07-20 02:55:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:55:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:55:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:55:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:55:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-07-20 02:55:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-07-20 02:55:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:55:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-20 02:55:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-20 02:55:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-07-20 02:55:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-07-20 02:55:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-20 02:55:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-20 02:55:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-20 02:55:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:55:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-07-20 02:55:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-20 02:55:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 02:55:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 02:55:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 02:55:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-07-20 02:55:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-07-20 02:55:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:55:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:55:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 02:55:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 02:55:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:55:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:55:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-07-20 02:55:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-07-20 02:55:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2022-07-20 02:55:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2022-07-20 02:55:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2022-07-20 02:55:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2022-07-20 02:55:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-20 02:55:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-20 02:55:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-07-20 02:55:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-07-20 02:55:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-07-20 02:55:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-07-20 02:55:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:55:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:55:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-07-20 02:55:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-07-20 02:55:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:55:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-20 02:55:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-07-20 02:55:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-07-20 02:55:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-07-20 02:55:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-07-20 02:55:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 02:55:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 02:55:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-07-20 02:55:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-07-20 02:55:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-07-20 02:55:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-07-20 02:55:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-20 02:55:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-20 02:55:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-07-20 02:55:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-07-20 02:55:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:55:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:55:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:55:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-07-20 02:55:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-07-20 02:55:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:55:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:55:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-07-20 02:55:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-07-20 02:55:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-20 02:55:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-20 02:55:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-07-20 02:55:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-07-20 02:55:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-07-20 02:55:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-07-20 02:55:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-20 02:55:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-20 02:55:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-07-20 02:55:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-07-20 02:55:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-20 02:55:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-20 02:55:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 02:55:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 02:55:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-07-20 02:55:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-07-20 02:55:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-07-20 02:55:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-07-20 02:55:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-20 02:55:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-20 02:55:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-07-20 02:55:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-07-20 02:55:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-20 02:55:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-07-20 02:55:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-07-20 02:55:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-07-20 02:55:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-20 02:55:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-20 02:55:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-20 02:55:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-20 02:55:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 02:55:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 02:55:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-20 02:55:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-20 02:55:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 02:55:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 02:55:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:55:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-07-20 02:55:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-07-20 02:55:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:55:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-20 02:55:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-20 02:55:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-20 02:55:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-20 02:55:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-20 02:55:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 02:55:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 02:55:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-20 02:55:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-20 02:55:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:55:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:55:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-07-20 02:55:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-07-20 02:55:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-07-20 02:55:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-07-20 02:55:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-20 02:55:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-20 02:55:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-07-20 02:55:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-07-20 02:55:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-07-20 02:55:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-07-20 02:55:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-07-20 02:55:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-07-20 02:55:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:55:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:55:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-20 02:55:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-20 02:55:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-20 02:55:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-20 02:55:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-07-20 02:55:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-07-20 02:55:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:55:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:55:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-20 02:55:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-20 02:55:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-20 02:55:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-20 02:55:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-07-20 02:55:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-07-20 02:55:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 02:55:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 02:55:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-07-20 02:55:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-07-20 02:55:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-20 02:55:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-20 02:55:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-07-20 02:55:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-07-20 02:55:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:55:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:55:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 02:55:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 02:55:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-07-20 02:55:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-07-20 02:55:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-07-20 02:55:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-07-20 02:55:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-20 02:55:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-20 02:55:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 02:55:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 02:55:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-07-20 02:55:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-07-20 02:55:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 02:55:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-07-20 02:55:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-07-20 02:55:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:55:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:55:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-20 02:55:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-20 02:55:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-07-20 02:55:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-07-20 02:55:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-20 02:55:35,192 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:55:35,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:55:35,320 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:55:54,195 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:55:54,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:55:54,216 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-07-20 02:55:54,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:54 BoogieIcfgContainer [2022-07-20 02:55:54,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:55:54,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:55:54,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:55:54,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:55:54,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:55:24" (1/3) ... [2022-07-20 02:55:54,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cb2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:54, skipping insertion in model container [2022-07-20 02:55:54,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:55:32" (2/3) ... [2022-07-20 02:55:54,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cb2a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:54, skipping insertion in model container [2022-07-20 02:55:54,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:54" (3/3) ... [2022-07-20 02:55:54,227 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-07-20 02:55:54,239 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:55:54,240 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:55:54,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:55:54,361 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4478fabd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17de6b0d [2022-07-20 02:55:54,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:55:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:55:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-20 02:55:54,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:54,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:55:54,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:55:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2044215754, now seen corresponding path program 1 times [2022-07-20 02:55:54,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:55:54,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536692508] [2022-07-20 02:55:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:55:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:55:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:55:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:55:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:55:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:55:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:55:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:55:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:55:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 02:55:55,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:55:55,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536692508] [2022-07-20 02:55:55,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536692508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:55:55,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:55:55,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:55:55,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223967789] [2022-07-20 02:55:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:55:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:55:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:55:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:55:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:55:55,405 INFO L87 Difference]: Start difference. First operand has 4042 states, 2678 states have (on average 1.3121732636295742) internal successors, (3514), 2784 states have internal predecessors, (3514), 1154 states have call successors, (1154), 208 states have call predecessors, (1154), 207 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 02:56:06,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:06,387 INFO L93 Difference]: Finished difference Result 8310 states and 12198 transitions. [2022-07-20 02:56:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:56:06,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-20 02:56:06,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:06,445 INFO L225 Difference]: With dead ends: 8310 [2022-07-20 02:56:06,446 INFO L226 Difference]: Without dead ends: 4339 [2022-07-20 02:56:06,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:06,486 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 5904 mSDsluCounter, 8415 mSDsCounter, 0 mSdLazyCounter, 6565 mSolverCounterSat, 2914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6490 SdHoareTripleChecker+Valid, 13601 SdHoareTripleChecker+Invalid, 9479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2914 IncrementalHoareTripleChecker+Valid, 6565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:06,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6490 Valid, 13601 Invalid, 9479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2914 Valid, 6565 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-07-20 02:56:06,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-07-20 02:56:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4012. [2022-07-20 02:56:06,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 2646 states have (on average 1.2622826908541194) internal successors, (3340), 2749 states have internal predecessors, (3340), 1149 states have call successors, (1149), 215 states have call predecessors, (1149), 214 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:56:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 5635 transitions. [2022-07-20 02:56:06,821 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 5635 transitions. Word has length 62 [2022-07-20 02:56:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:06,822 INFO L495 AbstractCegarLoop]: Abstraction has 4012 states and 5635 transitions. [2022-07-20 02:56:06,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 02:56:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 5635 transitions. [2022-07-20 02:56:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-20 02:56:06,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:06,826 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-07-20 02:56:06,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 02:56:06,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:56:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1199263874, now seen corresponding path program 1 times [2022-07-20 02:56:06,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:56:06,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273969814] [2022-07-20 02:56:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:56:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:56:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:56:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:56:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:56:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:56:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:56:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:56:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-20 02:56:07,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:56:07,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273969814] [2022-07-20 02:56:07,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273969814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:56:07,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:56:07,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:56:07,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447662899] [2022-07-20 02:56:07,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:07,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:56:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:56:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:56:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:56:07,454 INFO L87 Difference]: Start difference. First operand 4012 states and 5635 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 02:56:18,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:56:20,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:56:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:21,426 INFO L93 Difference]: Finished difference Result 4343 states and 6178 transitions. [2022-07-20 02:56:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:56:21,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-07-20 02:56:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:21,459 INFO L225 Difference]: With dead ends: 4343 [2022-07-20 02:56:21,459 INFO L226 Difference]: Without dead ends: 4341 [2022-07-20 02:56:21,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:21,464 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5866 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2885 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6475 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:21,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6475 Valid, 13531 Invalid, 9327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2885 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2022-07-20 02:56:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2022-07-20 02:56:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4016. [2022-07-20 02:56:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 2649 states have (on average 1.2619856549641375) internal successors, (3343), 2752 states have internal predecessors, (3343), 1149 states have call successors, (1149), 216 states have call predecessors, (1149), 215 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:56:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5638 transitions. [2022-07-20 02:56:21,655 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5638 transitions. Word has length 67 [2022-07-20 02:56:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:21,656 INFO L495 AbstractCegarLoop]: Abstraction has 4016 states and 5638 transitions. [2022-07-20 02:56:21,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 02:56:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5638 transitions. [2022-07-20 02:56:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-20 02:56:21,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:21,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 02:56:21,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 02:56:21,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:56:21,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:21,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1515598710, now seen corresponding path program 1 times [2022-07-20 02:56:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:56:21,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854829958] [2022-07-20 02:56:21,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:21,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:56:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:56:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:56:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:56:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:56:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:56:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:56:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:56:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:56:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-20 02:56:22,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:56:22,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854829958] [2022-07-20 02:56:22,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854829958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:56:22,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:56:22,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:56:22,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329537505] [2022-07-20 02:56:22,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:22,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:56:22,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:56:22,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:56:22,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:56:22,378 INFO L87 Difference]: Start difference. First operand 4016 states and 5638 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 02:56:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:30,525 INFO L93 Difference]: Finished difference Result 4347 states and 6181 transitions. [2022-07-20 02:56:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:56:30,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-07-20 02:56:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:30,555 INFO L225 Difference]: With dead ends: 4347 [2022-07-20 02:56:30,555 INFO L226 Difference]: Without dead ends: 4345 [2022-07-20 02:56:30,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:30,560 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5870 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6478 SdHoareTripleChecker+Valid, 13520 SdHoareTripleChecker+Invalid, 9328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2886 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:30,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6478 Valid, 13520 Invalid, 9328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2886 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-20 02:56:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2022-07-20 02:56:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 4020. [2022-07-20 02:56:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 2652 states have (on average 1.2616892911010558) internal successors, (3346), 2755 states have internal predecessors, (3346), 1149 states have call successors, (1149), 217 states have call predecessors, (1149), 216 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:56:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5641 transitions. [2022-07-20 02:56:30,899 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5641 transitions. Word has length 72 [2022-07-20 02:56:30,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:30,902 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 5641 transitions. [2022-07-20 02:56:30,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 02:56:30,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5641 transitions. [2022-07-20 02:56:30,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-20 02:56:30,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:30,907 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:56:30,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 02:56:30,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:56:30,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1695765182, now seen corresponding path program 1 times [2022-07-20 02:56:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:56:30,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3703295] [2022-07-20 02:56:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:30,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:56:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:56:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:56:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:56:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:56:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:56:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:56:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:56:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:56:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:56:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-20 02:56:31,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:56:31,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3703295] [2022-07-20 02:56:31,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3703295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:56:31,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:56:31,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:56:31,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869557571] [2022-07-20 02:56:31,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:31,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:56:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:56:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:56:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:56:31,363 INFO L87 Difference]: Start difference. First operand 4020 states and 5641 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 02:56:41,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:56:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:42,001 INFO L93 Difference]: Finished difference Result 4351 states and 6184 transitions. [2022-07-20 02:56:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:56:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2022-07-20 02:56:42,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:42,026 INFO L225 Difference]: With dead ends: 4351 [2022-07-20 02:56:42,027 INFO L226 Difference]: Without dead ends: 4349 [2022-07-20 02:56:42,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:42,031 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5870 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2885 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6478 SdHoareTripleChecker+Valid, 13520 SdHoareTripleChecker+Invalid, 9327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2885 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:42,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6478 Valid, 13520 Invalid, 9327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2885 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-07-20 02:56:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2022-07-20 02:56:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 4024. [2022-07-20 02:56:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 2655 states have (on average 1.2613935969868173) internal successors, (3349), 2758 states have internal predecessors, (3349), 1149 states have call successors, (1149), 218 states have call predecessors, (1149), 217 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:56:42,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 5644 transitions. [2022-07-20 02:56:42,326 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 5644 transitions. Word has length 77 [2022-07-20 02:56:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:42,326 INFO L495 AbstractCegarLoop]: Abstraction has 4024 states and 5644 transitions. [2022-07-20 02:56:42,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 02:56:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 5644 transitions. [2022-07-20 02:56:42,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-20 02:56:42,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:42,328 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:56:42,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 02:56:42,328 INFO L420 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)] === [2022-07-20 02:56:42,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:42,329 INFO L85 PathProgramCache]: Analyzing trace with hash 378443594, now seen corresponding path program 1 times [2022-07-20 02:56:42,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:56:42,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179984154] [2022-07-20 02:56:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:42,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:56:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:56:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:56:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:56:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:56:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:56:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:56:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:56:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:56:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:56:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:56:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-20 02:56:42,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:56:42,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179984154] [2022-07-20 02:56:42,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179984154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:56:42,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:56:42,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:56:42,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460490029] [2022-07-20 02:56:42,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:42,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:56:42,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:56:42,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:56:42,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:56:42,760 INFO L87 Difference]: Start difference. First operand 4024 states and 5644 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 02:56:52,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:56:54,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:56:55,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:55,005 INFO L93 Difference]: Finished difference Result 4355 states and 6187 transitions. [2022-07-20 02:56:55,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:56:55,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-20 02:56:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:55,031 INFO L225 Difference]: With dead ends: 4355 [2022-07-20 02:56:55,031 INFO L226 Difference]: Without dead ends: 4353 [2022-07-20 02:56:55,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:55,036 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5869 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2884 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2884 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:55,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6477 Valid, 13523 Invalid, 9326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2884 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-07-20 02:56:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2022-07-20 02:56:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 4028. [2022-07-20 02:56:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2658 states have (on average 1.2610985703536493) internal successors, (3352), 2761 states have internal predecessors, (3352), 1149 states have call successors, (1149), 219 states have call predecessors, (1149), 218 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:56:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5647 transitions. [2022-07-20 02:56:55,225 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5647 transitions. Word has length 82 [2022-07-20 02:56:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:55,226 INFO L495 AbstractCegarLoop]: Abstraction has 4028 states and 5647 transitions. [2022-07-20 02:56:55,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 02:56:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5647 transitions. [2022-07-20 02:56:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-20 02:56:55,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:55,233 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:56:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 02:56:55,234 INFO L420 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)] === [2022-07-20 02:56:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 991355451, now seen corresponding path program 1 times [2022-07-20 02:56:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:56:55,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166019622] [2022-07-20 02:56:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:56:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:56:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:56:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:56:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:56:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:56:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:56:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:56:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:56:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:56:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:56:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:56:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:56:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:56:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-20 02:56:55,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:56:55,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166019622] [2022-07-20 02:56:55,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166019622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:56:55,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:56:55,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:56:55,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829627291] [2022-07-20 02:56:55,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:55,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:56:55,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:56:55,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:56:55,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:56:55,713 INFO L87 Difference]: Start difference. First operand 4028 states and 5647 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 02:57:05,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:07,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:07,925 INFO L93 Difference]: Finished difference Result 4359 states and 6190 transitions. [2022-07-20 02:57:07,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:57:07,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2022-07-20 02:57:07,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:07,951 INFO L225 Difference]: With dead ends: 4359 [2022-07-20 02:57:07,951 INFO L226 Difference]: Without dead ends: 4357 [2022-07-20 02:57:07,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:07,956 INFO L413 NwaCegarLoop]: 5147 mSDtfsCounter, 5858 mSDsluCounter, 8376 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2883 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 13523 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2883 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:07,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6465 Valid, 13523 Invalid, 9325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2883 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-07-20 02:57:07,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2022-07-20 02:57:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4032. [2022-07-20 02:57:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 2661 states have (on average 1.260804208944006) internal successors, (3355), 2764 states have internal predecessors, (3355), 1149 states have call successors, (1149), 220 states have call predecessors, (1149), 219 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:57:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5650 transitions. [2022-07-20 02:57:08,143 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5650 transitions. Word has length 102 [2022-07-20 02:57:08,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:08,144 INFO L495 AbstractCegarLoop]: Abstraction has 4032 states and 5650 transitions. [2022-07-20 02:57:08,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 02:57:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5650 transitions. [2022-07-20 02:57:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 02:57:08,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:08,146 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:57:08,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 02:57:08,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:57:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:08,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1707459953, now seen corresponding path program 1 times [2022-07-20 02:57:08,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:57:08,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601998278] [2022-07-20 02:57:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:08,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:57:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:57:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:57:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:57:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:57:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:57:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:57:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:57:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:57:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:57:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:57:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:57:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:57:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:57:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-20 02:57:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:57:08,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601998278] [2022-07-20 02:57:08,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601998278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:08,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:08,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:57:08,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594325697] [2022-07-20 02:57:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:08,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:57:08,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:57:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:57:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:57:08,564 INFO L87 Difference]: Start difference. First operand 4032 states and 5650 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:57:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:17,202 INFO L93 Difference]: Finished difference Result 4363 states and 6193 transitions. [2022-07-20 02:57:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:57:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-07-20 02:57:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:17,236 INFO L225 Difference]: With dead ends: 4363 [2022-07-20 02:57:17,236 INFO L226 Difference]: Without dead ends: 4361 [2022-07-20 02:57:17,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:17,239 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5855 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:17,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 13531 Invalid, 9322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2880 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-07-20 02:57:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-07-20 02:57:17,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4036. [2022-07-20 02:57:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 2664 states have (on average 1.2605105105105106) internal successors, (3358), 2767 states have internal predecessors, (3358), 1149 states have call successors, (1149), 221 states have call predecessors, (1149), 220 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:57:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5653 transitions. [2022-07-20 02:57:17,417 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5653 transitions. Word has length 107 [2022-07-20 02:57:17,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:17,418 INFO L495 AbstractCegarLoop]: Abstraction has 4036 states and 5653 transitions. [2022-07-20 02:57:17,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:57:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5653 transitions. [2022-07-20 02:57:17,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-20 02:57:17,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:17,420 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:57:17,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 02:57:17,420 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:57:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1782733118, now seen corresponding path program 1 times [2022-07-20 02:57:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:57:17,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228279152] [2022-07-20 02:57:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:57:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:57:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:57:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:57:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:57:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:57:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:57:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:57:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:57:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:57:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:57:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:57:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:57:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:57:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-20 02:57:17,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:57:17,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228279152] [2022-07-20 02:57:17,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228279152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:17,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:17,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:57:17,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660200698] [2022-07-20 02:57:17,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:17,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:57:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:57:17,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:57:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:57:17,820 INFO L87 Difference]: Start difference. First operand 4036 states and 5653 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:57:26,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:26,852 INFO L93 Difference]: Finished difference Result 4367 states and 6196 transitions. [2022-07-20 02:57:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:57:26,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-07-20 02:57:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:26,870 INFO L225 Difference]: With dead ends: 4367 [2022-07-20 02:57:26,870 INFO L226 Difference]: Without dead ends: 4365 [2022-07-20 02:57:26,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:26,872 INFO L413 NwaCegarLoop]: 5152 mSDtfsCounter, 5867 mSDsluCounter, 8388 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6473 SdHoareTripleChecker+Valid, 13540 SdHoareTripleChecker+Invalid, 9321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2879 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:26,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6473 Valid, 13540 Invalid, 9321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2879 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-20 02:57:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2022-07-20 02:57:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4040. [2022-07-20 02:57:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 2667 states have (on average 1.260217472815898) internal successors, (3361), 2770 states have internal predecessors, (3361), 1149 states have call successors, (1149), 222 states have call predecessors, (1149), 221 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:57:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5656 transitions. [2022-07-20 02:57:27,053 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5656 transitions. Word has length 97 [2022-07-20 02:57:27,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:27,053 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5656 transitions. [2022-07-20 02:57:27,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 02:57:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5656 transitions. [2022-07-20 02:57:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-20 02:57:27,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:27,055 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:57:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 02:57:27,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:57:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash -581616783, now seen corresponding path program 1 times [2022-07-20 02:57:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:57:27,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855407967] [2022-07-20 02:57:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:27,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:57:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:57:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:57:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:57:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:57:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:57:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:57:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:57:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:57:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:57:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:57:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:57:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:57:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:57:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:57:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:57:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-20 02:57:27,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:57:27,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855407967] [2022-07-20 02:57:27,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855407967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:27,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:27,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:57:27,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664270456] [2022-07-20 02:57:27,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:27,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:57:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:57:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:57:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:57:27,468 INFO L87 Difference]: Start difference. First operand 4040 states and 5656 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:57:37,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:39,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:40,583 INFO L93 Difference]: Finished difference Result 4371 states and 6199 transitions. [2022-07-20 02:57:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:57:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 117 [2022-07-20 02:57:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:40,601 INFO L225 Difference]: With dead ends: 4371 [2022-07-20 02:57:40,601 INFO L226 Difference]: Without dead ends: 4369 [2022-07-20 02:57:40,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:40,605 INFO L413 NwaCegarLoop]: 5152 mSDtfsCounter, 5855 mSDsluCounter, 8387 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2878 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6461 SdHoareTripleChecker+Valid, 13539 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2878 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:40,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6461 Valid, 13539 Invalid, 9320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2878 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-07-20 02:57:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2022-07-20 02:57:40,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4044. [2022-07-20 02:57:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 2670 states have (on average 1.259925093632959) internal successors, (3364), 2773 states have internal predecessors, (3364), 1149 states have call successors, (1149), 223 states have call predecessors, (1149), 222 states have return successors, (1146), 1114 states have call predecessors, (1146), 1146 states have call successors, (1146) [2022-07-20 02:57:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 5659 transitions. [2022-07-20 02:57:40,952 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 5659 transitions. Word has length 117 [2022-07-20 02:57:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:40,953 INFO L495 AbstractCegarLoop]: Abstraction has 4044 states and 5659 transitions. [2022-07-20 02:57:40,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:57:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 5659 transitions. [2022-07-20 02:57:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 02:57:40,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:40,956 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:57:40,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 02:57:40,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:57:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash -214088830, now seen corresponding path program 1 times [2022-07-20 02:57:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:57:40,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933511207] [2022-07-20 02:57:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:40,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:57:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:57:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:57:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:57:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:57:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:57:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:57:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:57:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:57:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:57:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:57:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:57:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:57:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:57:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:57:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:57:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-20 02:57:41,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:57:41,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933511207] [2022-07-20 02:57:41,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933511207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:41,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:41,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:57:41,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366009026] [2022-07-20 02:57:41,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:41,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:57:41,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:57:41,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:57:41,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:57:41,354 INFO L87 Difference]: Start difference. First operand 4044 states and 5659 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:57:51,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:53,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:57:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:57:54,032 INFO L93 Difference]: Finished difference Result 4456 states and 6278 transitions. [2022-07-20 02:57:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:57:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2022-07-20 02:57:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:57:54,052 INFO L225 Difference]: With dead ends: 4456 [2022-07-20 02:57:54,052 INFO L226 Difference]: Without dead ends: 4454 [2022-07-20 02:57:54,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:57:54,055 INFO L413 NwaCegarLoop]: 5193 mSDtfsCounter, 5416 mSDsluCounter, 8824 mSDsCounter, 0 mSdLazyCounter, 6767 mSolverCounterSat, 2829 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5930 SdHoareTripleChecker+Valid, 14017 SdHoareTripleChecker+Invalid, 9598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2829 IncrementalHoareTripleChecker+Valid, 6767 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:57:54,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5930 Valid, 14017 Invalid, 9598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2829 Valid, 6767 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-07-20 02:57:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-07-20 02:57:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4127. [2022-07-20 02:57:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 2726 states have (on average 1.2560528246515041) internal successors, (3424), 2829 states have internal predecessors, (3424), 1158 states have call successors, (1158), 241 states have call predecessors, (1158), 240 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-20 02:57:54,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5737 transitions. [2022-07-20 02:57:54,276 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5737 transitions. Word has length 107 [2022-07-20 02:57:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:57:54,277 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5737 transitions. [2022-07-20 02:57:54,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 02:57:54,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5737 transitions. [2022-07-20 02:57:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-20 02:57:54,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:57:54,279 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:57:54,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 02:57:54,280 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:57:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:57:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash -84221583, now seen corresponding path program 1 times [2022-07-20 02:57:54,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:57:54,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794415950] [2022-07-20 02:57:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:57:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:57:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:57:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:57:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:57:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:57:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:57:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:57:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:57:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:57:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:57:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:57:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:57:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:57:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:57:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:57:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:57:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:57:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 02:57:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 02:57:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:57:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-20 02:57:54,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:57:54,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794415950] [2022-07-20 02:57:54,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794415950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:57:54,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:57:54,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:57:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879882723] [2022-07-20 02:57:54,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:57:54,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:57:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:57:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:57:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:57:54,850 INFO L87 Difference]: Start difference. First operand 4127 states and 5737 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:58:04,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:58:05,059 INFO L93 Difference]: Finished difference Result 4458 states and 6280 transitions. [2022-07-20 02:58:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:58:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 127 [2022-07-20 02:58:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:58:05,080 INFO L225 Difference]: With dead ends: 4458 [2022-07-20 02:58:05,080 INFO L226 Difference]: Without dead ends: 4456 [2022-07-20 02:58:05,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:58:05,085 INFO L413 NwaCegarLoop]: 5150 mSDtfsCounter, 5855 mSDsluCounter, 8381 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2876 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6463 SdHoareTripleChecker+Valid, 13531 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-20 02:58:05,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6463 Valid, 13531 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-07-20 02:58:05,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2022-07-20 02:58:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4131. [2022-07-20 02:58:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2729 states have (on average 1.2557713448149506) internal successors, (3427), 2832 states have internal predecessors, (3427), 1158 states have call successors, (1158), 242 states have call predecessors, (1158), 241 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-20 02:58:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5740 transitions. [2022-07-20 02:58:05,314 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5740 transitions. Word has length 127 [2022-07-20 02:58:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:58:05,316 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5740 transitions. [2022-07-20 02:58:05,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:58:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5740 transitions. [2022-07-20 02:58:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-20 02:58:05,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:58:05,319 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:58:05,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 02:58:05,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:58:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:58:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash -387866558, now seen corresponding path program 1 times [2022-07-20 02:58:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:58:05,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328524249] [2022-07-20 02:58:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:58:05,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:58:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:58:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:58:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:58:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:58:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:58:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:58:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:58:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:58:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:58:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:58:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:58:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:58:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:58:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:58:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:58:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:58:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:58:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-20 02:58:05,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:58:05,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328524249] [2022-07-20 02:58:05,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328524249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:58:05,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:58:05,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:58:05,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954129008] [2022-07-20 02:58:05,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:58:05,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:58:05,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:58:05,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:58:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:58:05,691 INFO L87 Difference]: Start difference. First operand 4131 states and 5740 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:58:15,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:18,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:58:19,202 INFO L93 Difference]: Finished difference Result 4462 states and 6283 transitions. [2022-07-20 02:58:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:58:19,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 117 [2022-07-20 02:58:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:58:19,218 INFO L225 Difference]: With dead ends: 4462 [2022-07-20 02:58:19,218 INFO L226 Difference]: Without dead ends: 4460 [2022-07-20 02:58:19,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:58:19,220 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 5867 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2875 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6474 SdHoareTripleChecker+Valid, 13536 SdHoareTripleChecker+Invalid, 9317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2875 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-07-20 02:58:19,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6474 Valid, 13536 Invalid, 9317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2875 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-07-20 02:58:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2022-07-20 02:58:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4135. [2022-07-20 02:58:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2732 states have (on average 1.2554904831625182) internal successors, (3430), 2835 states have internal predecessors, (3430), 1158 states have call successors, (1158), 243 states have call predecessors, (1158), 242 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-20 02:58:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5743 transitions. [2022-07-20 02:58:19,433 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5743 transitions. Word has length 117 [2022-07-20 02:58:19,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:58:19,434 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5743 transitions. [2022-07-20 02:58:19,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:58:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5743 transitions. [2022-07-20 02:58:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-20 02:58:19,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:58:19,437 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:58:19,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 02:58:19,437 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:58:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:58:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2092611441, now seen corresponding path program 1 times [2022-07-20 02:58:19,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:58:19,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510939217] [2022-07-20 02:58:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:58:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:58:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:58:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:58:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:58:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:58:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:58:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:58:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:58:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:58:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:58:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:58:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:58:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:58:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:58:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:58:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:58:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 02:58:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 02:58:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:58:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 02:58:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-20 02:58:19,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:58:19,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510939217] [2022-07-20 02:58:19,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510939217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:58:19,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:58:19,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:58:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683531104] [2022-07-20 02:58:19,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:58:19,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:58:19,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:58:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:58:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:58:19,815 INFO L87 Difference]: Start difference. First operand 4135 states and 5743 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-20 02:58:30,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:32,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:58:32,645 INFO L93 Difference]: Finished difference Result 4466 states and 6286 transitions. [2022-07-20 02:58:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:58:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 137 [2022-07-20 02:58:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:58:32,660 INFO L225 Difference]: With dead ends: 4466 [2022-07-20 02:58:32,660 INFO L226 Difference]: Without dead ends: 4464 [2022-07-20 02:58:32,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:58:32,662 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 5858 mSDsluCounter, 8373 mSDsCounter, 0 mSdLazyCounter, 6440 mSolverCounterSat, 2876 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6466 SdHoareTripleChecker+Valid, 13519 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2876 IncrementalHoareTripleChecker+Valid, 6440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:58:32,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6466 Valid, 13519 Invalid, 9318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2876 Valid, 6440 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-07-20 02:58:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2022-07-20 02:58:32,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 4139. [2022-07-20 02:58:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2735 states have (on average 1.2552102376599634) internal successors, (3433), 2838 states have internal predecessors, (3433), 1158 states have call successors, (1158), 244 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-20 02:58:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5746 transitions. [2022-07-20 02:58:32,878 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5746 transitions. Word has length 137 [2022-07-20 02:58:32,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:58:32,878 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5746 transitions. [2022-07-20 02:58:32,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-20 02:58:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5746 transitions. [2022-07-20 02:58:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-20 02:58:32,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:58:32,881 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:58:32,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 02:58:32,882 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:58:32,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:58:32,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2026870725, now seen corresponding path program 1 times [2022-07-20 02:58:32,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:58:32,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854048410] [2022-07-20 02:58:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:58:32,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:58:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:58:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:58:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:58:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:58:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:58:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:58:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:58:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:58:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:58:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:58:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:58:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:58:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:58:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:58:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:58:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 02:58:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 02:58:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:58:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 02:58:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 02:58:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-07-20 02:58:33,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:58:33,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854048410] [2022-07-20 02:58:33,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854048410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:58:33,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:58:33,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:58:33,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851720352] [2022-07-20 02:58:33,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:58:33,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:58:33,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:58:33,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:58:33,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:58:33,292 INFO L87 Difference]: Start difference. First operand 4139 states and 5746 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-20 02:58:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:58:41,629 INFO L93 Difference]: Finished difference Result 4470 states and 6289 transitions. [2022-07-20 02:58:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 02:58:41,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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 142 [2022-07-20 02:58:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:58:41,642 INFO L225 Difference]: With dead ends: 4470 [2022-07-20 02:58:41,642 INFO L226 Difference]: Without dead ends: 4466 [2022-07-20 02:58:41,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:58:41,644 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 5856 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6462 SdHoareTripleChecker+Valid, 13536 SdHoareTripleChecker+Invalid, 9315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:58:41,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6462 Valid, 13536 Invalid, 9315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2873 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-20 02:58:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2022-07-20 02:58:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4141. [2022-07-20 02:58:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 2737 states have (on average 1.2546583850931676) internal successors, (3434), 2839 states have internal predecessors, (3434), 1158 states have call successors, (1158), 245 states have call predecessors, (1158), 243 states have return successors, (1155), 1123 states have call predecessors, (1155), 1155 states have call successors, (1155) [2022-07-20 02:58:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5747 transitions. [2022-07-20 02:58:41,877 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5747 transitions. Word has length 142 [2022-07-20 02:58:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:58:41,877 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5747 transitions. [2022-07-20 02:58:41,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-07-20 02:58:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5747 transitions. [2022-07-20 02:58:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-20 02:58:41,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:58:41,880 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:58:41,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 02:58:41,881 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:58:41,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:58:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1140280586, now seen corresponding path program 1 times [2022-07-20 02:58:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:58:41,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534976145] [2022-07-20 02:58:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:58:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:58:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:58:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:58:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:58:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:58:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:58:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:58:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-20 02:58:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:58:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 02:58:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-20 02:58:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 02:58:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-20 02:58:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 02:58:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 02:58:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 02:58:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 02:58:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 02:58:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 02:58:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 02:58:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 02:58:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-07-20 02:58:42,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:58:42,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534976145] [2022-07-20 02:58:42,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534976145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:58:42,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:58:42,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 02:58:42,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168810738] [2022-07-20 02:58:42,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:58:42,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:58:42,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:58:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:58:42,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:58:42,330 INFO L87 Difference]: Start difference. First operand 4141 states and 5747 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-07-20 02:58:52,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:54,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:58:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:58:55,260 INFO L93 Difference]: Finished difference Result 4530 states and 6344 transitions. [2022-07-20 02:58:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 02:58:55,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 132 [2022-07-20 02:58:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:58:55,273 INFO L225 Difference]: With dead ends: 4530 [2022-07-20 02:58:55,273 INFO L226 Difference]: Without dead ends: 4370 [2022-07-20 02:58:55,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:58:55,279 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 5870 mSDsluCounter, 8416 mSDsCounter, 0 mSdLazyCounter, 6523 mSolverCounterSat, 2882 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6472 SdHoareTripleChecker+Valid, 13564 SdHoareTripleChecker+Invalid, 9407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 6523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-07-20 02:58:55,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6472 Valid, 13564 Invalid, 9407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2882 Valid, 6523 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-07-20 02:58:55,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2022-07-20 02:58:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4041. [2022-07-20 02:58:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4041 states, 2676 states have (on average 1.257847533632287) internal successors, (3366), 2772 states have internal predecessors, (3366), 1122 states have call successors, (1122), 241 states have call predecessors, (1122), 241 states have return successors, (1122), 1092 states have call predecessors, (1122), 1122 states have call successors, (1122) [2022-07-20 02:58:55,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 5610 transitions. [2022-07-20 02:58:55,491 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 5610 transitions. Word has length 132 [2022-07-20 02:58:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:58:55,491 INFO L495 AbstractCegarLoop]: Abstraction has 4041 states and 5610 transitions. [2022-07-20 02:58:55,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-07-20 02:58:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 5610 transitions. [2022-07-20 02:58:55,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-20 02:58:55,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:58:55,495 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:58:55,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 02:58:55,495 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:58:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:58:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash 536943563, now seen corresponding path program 1 times [2022-07-20 02:58:55,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 02:58:55,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684489046] [2022-07-20 02:58:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:58:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 02:58:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-20 02:58:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 02:58:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 02:58:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 02:58:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 02:58:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-20 02:58:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 02:58:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-20 02:58:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:58:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:58:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-20 02:58:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-20 02:58:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 02:58:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 02:58:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-20 02:58:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 02:58:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 02:58:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 02:58:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:58:56,007 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-20 02:58:56,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 02:58:56,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684489046] [2022-07-20 02:58:56,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684489046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:58:56,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:58:56,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:58:56,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213270107] [2022-07-20 02:58:56,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:58:56,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 02:58:56,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 02:58:56,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 02:58:56,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 02:58:56,012 INFO L87 Difference]: Start difference. First operand 4041 states and 5610 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19)