./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:06:08,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:06:08,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:06:08,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:06:08,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:06:08,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:06:08,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:06:09,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:06:09,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:06:09,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:06:09,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:06:09,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:06:09,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:06:09,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:06:09,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:06:09,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:06:09,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:06:09,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:06:09,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:06:09,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:06:09,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:06:09,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:06:09,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:06:09,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:06:09,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:06:09,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:06:09,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:06:09,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:06:09,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:06:09,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:06:09,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:06:09,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:06:09,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:06:09,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:06:09,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:06:09,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:06:09,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:06:09,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:06:09,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:06:09,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:06:09,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:06:09,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:06:09,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:06:09,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:06:09,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:06:09,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:06:09,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:06:09,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:06:09,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:06:09,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:06:09,093 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:06:09,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:06:09,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:06:09,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:06:09,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:06:09,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:06:09,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:06:09,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:06:09,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:06:09,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:06:09,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:06:09,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:06:09,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-12-21 17:06:09,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:06:09,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:06:09,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:06:09,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:06:09,360 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:06:09,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-12-21 17:06:09,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a122bc2/c49628d1013f40bcb1e0db227f522aaa/FLAG9e95849ef [2021-12-21 17:06:10,138 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:06:10,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-12-21 17:06:10,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a122bc2/c49628d1013f40bcb1e0db227f522aaa/FLAG9e95849ef [2021-12-21 17:06:10,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a122bc2/c49628d1013f40bcb1e0db227f522aaa [2021-12-21 17:06:10,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:06:10,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:06:10,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:06:10,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:06:10,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:06:10,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:06:10" (1/1) ... [2021-12-21 17:06:10,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da7b804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:10, skipping insertion in model container [2021-12-21 17:06:10,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:06:10" (1/1) ... [2021-12-21 17:06:10,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:06:10,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:06:13,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-12-21 17:06:13,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-12-21 17:06:13,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-12-21 17:06:13,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-12-21 17:06:13,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:06:13,118 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:06:13,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-12-21 17:06:13,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-12-21 17:06:13,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-12-21 17:06:13,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-12-21 17:06:13,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:06:13,588 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:06:13,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13 WrapperNode [2021-12-21 17:06:13,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:06:13,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:06:13,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:06:13,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:06:13,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:13,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:13,904 INFO L137 Inliner]: procedures = 451, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 5139 [2021-12-21 17:06:13,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:06:13,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:06:13,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:06:13,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:06:13,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:13,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:13,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:13,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:14,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:14,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:14,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:14,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:06:14,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:06:14,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:06:14,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:06:14,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (1/1) ... [2021-12-21 17:06:14,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:06:14,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:06:14,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:06:14,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:06:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-21 17:06:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-21 17:06:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:06:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:06:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:06:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:06:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:06:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:06:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2021-12-21 17:06:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2021-12-21 17:06:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:06:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:06:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2021-12-21 17:06:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2021-12-21 17:06:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:06:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:06:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-12-21 17:06:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-12-21 17:06:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:06:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:06:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2021-12-21 17:06:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2021-12-21 17:06:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:06:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:06:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2021-12-21 17:06:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2021-12-21 17:06:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:06:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:06:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2021-12-21 17:06:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2021-12-21 17:06:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2021-12-21 17:06:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2021-12-21 17:06:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 17:06:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 17:06:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:06:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:06:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-21 17:06:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-21 17:06:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:06:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:06:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2021-12-21 17:06:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2021-12-21 17:06:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:06:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:06:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:06:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-21 17:06:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-21 17:06:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-21 17:06:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-21 17:06:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 17:06:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 17:06:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2021-12-21 17:06:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2021-12-21 17:06:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:06:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:06:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:06:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2021-12-21 17:06:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2021-12-21 17:06:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:06:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:06:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:06:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:06:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:06:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2021-12-21 17:06:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2021-12-21 17:06:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:06:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:06:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:06:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2021-12-21 17:06:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2021-12-21 17:06:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:06:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:06:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:06:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:06:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-21 17:06:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-21 17:06:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2021-12-21 17:06:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2021-12-21 17:06:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:06:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:06:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 17:06:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 17:06:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2021-12-21 17:06:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2021-12-21 17:06:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:06:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:06:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:06:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:06:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2021-12-21 17:06:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2021-12-21 17:06:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2021-12-21 17:06:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2021-12-21 17:06:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:06:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:06:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:06:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:06:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:06:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2021-12-21 17:06:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2021-12-21 17:06:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-21 17:06:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-21 17:06:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:06:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:06:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:06:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:06:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:06:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:06:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 17:06:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2021-12-21 17:06:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2021-12-21 17:06:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:06:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:06:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-12-21 17:06:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2021-12-21 17:06:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:06:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:06:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:06:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:06:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:06:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:06:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:06:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:06:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2021-12-21 17:06:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2021-12-21 17:06:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2021-12-21 17:06:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2021-12-21 17:06:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:06:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:06:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:06:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:06:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:06:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:06:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:06:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:06:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-21 17:06:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-21 17:06:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-21 17:06:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-21 17:06:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2021-12-21 17:06:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2021-12-21 17:06:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 17:06:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 17:06:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-21 17:06:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-21 17:06:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:06:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:06:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:06:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:06:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2021-12-21 17:06:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2021-12-21 17:06:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-21 17:06:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-21 17:06:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:06:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:06:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:06:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:06:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2021-12-21 17:06:14,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2021-12-21 17:06:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2021-12-21 17:06:14,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2021-12-21 17:06:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:06:14,227 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-21 17:06:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-21 17:06:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-21 17:06:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-21 17:06:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-21 17:06:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-21 17:06:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 17:06:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 17:06:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:06:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:06:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-21 17:06:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-21 17:06:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:06:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:06:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:06:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:06:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2021-12-21 17:06:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2021-12-21 17:06:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2021-12-21 17:06:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2021-12-21 17:06:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:06:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:06:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:06:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:06:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:06:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:06:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 17:06:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 17:06:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:06:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-21 17:06:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-21 17:06:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:06:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:06:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2021-12-21 17:06:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2021-12-21 17:06:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-21 17:06:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-21 17:06:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-21 17:06:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-21 17:06:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2021-12-21 17:06:14,233 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2021-12-21 17:06:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:06:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:06:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2021-12-21 17:06:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2021-12-21 17:06:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-12-21 17:06:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2021-12-21 17:06:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2021-12-21 17:06:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2021-12-21 17:06:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 17:06:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 17:06:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2021-12-21 17:06:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2021-12-21 17:06:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-21 17:06:14,235 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-21 17:06:14,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:06:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-21 17:06:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-21 17:06:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:06:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:06:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2021-12-21 17:06:14,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2021-12-21 17:06:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-12-21 17:06:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-12-21 17:06:14,953 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:06:14,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:06:15,203 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:06:19,847 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:06:19,896 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:06:19,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:06:19,924 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 17:06:19,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:06:19 BoogieIcfgContainer [2021-12-21 17:06:19,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:06:19,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:06:19,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:06:19,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:06:19,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:06:10" (1/3) ... [2021-12-21 17:06:19,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a33bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:06:19, skipping insertion in model container [2021-12-21 17:06:19,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:06:13" (2/3) ... [2021-12-21 17:06:19,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a33bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:06:19, skipping insertion in model container [2021-12-21 17:06:19,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:06:19" (3/3) ... [2021-12-21 17:06:19,942 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-12-21 17:06:19,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:06:19,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:06:20,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:06:20,024 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:06:20,026 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:06:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2021-12-21 17:06:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-21 17:06:20,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:20,106 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:20,107 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:20,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2021-12-21 17:06:20,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:20,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702339873] [2021-12-21 17:06:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:20,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 17:06:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-21 17:06:21,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:21,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702339873] [2021-12-21 17:06:21,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702339873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:21,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:21,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:21,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068524687] [2021-12-21 17:06:21,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:21,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:21,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:21,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:21,082 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-21 17:06:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:25,255 INFO L93 Difference]: Finished difference Result 5703 states and 8187 transitions. [2021-12-21 17:06:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2021-12-21 17:06:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:25,298 INFO L225 Difference]: With dead ends: 5703 [2021-12-21 17:06:25,298 INFO L226 Difference]: Without dead ends: 3833 [2021-12-21 17:06:25,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:06:25,316 INFO L933 BasicCegarLoop]: 2803 mSDtfsCounter, 3406 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1557 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:25,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 5706 Invalid, 3339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1557 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-21 17:06:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2021-12-21 17:06:25,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3601. [2021-12-21 17:06:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2435 states have (on average 1.2739219712525667) internal successors, (3102), 2484 states have internal predecessors, (3102), 961 states have call successors, (961), 203 states have call predecessors, (961), 202 states have return successors, (957), 951 states have call predecessors, (957), 957 states have call successors, (957) [2021-12-21 17:06:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2021-12-21 17:06:25,595 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2021-12-21 17:06:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:25,596 INFO L470 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2021-12-21 17:06:25,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-21 17:06:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2021-12-21 17:06:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-21 17:06:25,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:25,600 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:25,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:06:25,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2021-12-21 17:06:25,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:25,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418749804] [2021-12-21 17:06:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:06:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-21 17:06:25,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:25,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418749804] [2021-12-21 17:06:25,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418749804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:25,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:25,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:25,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61933394] [2021-12-21 17:06:25,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:25,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:25,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:25,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:25,995 INFO L87 Difference]: Start difference. First operand 3601 states and 5020 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-21 17:06:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:30,059 INFO L93 Difference]: Finished difference Result 10885 states and 15243 transitions. [2021-12-21 17:06:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:30,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2021-12-21 17:06:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:30,107 INFO L225 Difference]: With dead ends: 10885 [2021-12-21 17:06:30,108 INFO L226 Difference]: Without dead ends: 7311 [2021-12-21 17:06:30,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:06:30,123 INFO L933 BasicCegarLoop]: 3033 mSDtfsCounter, 3128 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 1507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 3258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1507 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:30,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3557 Valid, 6005 Invalid, 3258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1507 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-21 17:06:30,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7311 states. [2021-12-21 17:06:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7311 to 6837. [2021-12-21 17:06:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6837 states, 4636 states have (on average 1.2702761000862812) internal successors, (5889), 4736 states have internal predecessors, (5889), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 401 states have return successors, (1813), 1770 states have call predecessors, (1813), 1793 states have call successors, (1813) [2021-12-21 17:06:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6837 states to 6837 states and 9499 transitions. [2021-12-21 17:06:30,396 INFO L78 Accepts]: Start accepts. Automaton has 6837 states and 9499 transitions. Word has length 150 [2021-12-21 17:06:30,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:30,399 INFO L470 AbstractCegarLoop]: Abstraction has 6837 states and 9499 transitions. [2021-12-21 17:06:30,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-21 17:06:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6837 states and 9499 transitions. [2021-12-21 17:06:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-21 17:06:30,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:30,405 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:30,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:06:30,405 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:30,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:30,408 INFO L85 PathProgramCache]: Analyzing trace with hash 953371685, now seen corresponding path program 1 times [2021-12-21 17:06:30,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:30,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455624220] [2021-12-21 17:06:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:30,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:06:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:06:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-21 17:06:30,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:30,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455624220] [2021-12-21 17:06:30,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455624220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:30,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:30,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:30,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222912198] [2021-12-21 17:06:30,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:30,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:30,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:30,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:30,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:30,837 INFO L87 Difference]: Start difference. First operand 6837 states and 9499 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 17:06:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:35,362 INFO L93 Difference]: Finished difference Result 20667 states and 28796 transitions. [2021-12-21 17:06:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:35,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 158 [2021-12-21 17:06:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:35,460 INFO L225 Difference]: With dead ends: 20667 [2021-12-21 17:06:35,460 INFO L226 Difference]: Without dead ends: 13857 [2021-12-21 17:06:35,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:06:35,499 INFO L933 BasicCegarLoop]: 2783 mSDtfsCounter, 3230 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 1561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 5679 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:35,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3651 Valid, 5679 Invalid, 3315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1561 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-21 17:06:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13857 states. [2021-12-21 17:06:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13857 to 12933. [2021-12-21 17:06:36,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12933 states, 8780 states have (on average 1.2638952164009112) internal successors, (11097), 8956 states have internal predecessors, (11097), 3359 states have call successors, (3359), 796 states have call predecessors, (3359), 791 states have return successors, (3395), 3298 states have call predecessors, (3395), 3355 states have call successors, (3395) [2021-12-21 17:06:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12933 states to 12933 states and 17851 transitions. [2021-12-21 17:06:36,088 INFO L78 Accepts]: Start accepts. Automaton has 12933 states and 17851 transitions. Word has length 158 [2021-12-21 17:06:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:36,089 INFO L470 AbstractCegarLoop]: Abstraction has 12933 states and 17851 transitions. [2021-12-21 17:06:36,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-21 17:06:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 12933 states and 17851 transitions. [2021-12-21 17:06:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-21 17:06:36,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:36,097 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2021-12-21 17:06:36,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:06:36,098 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1404264420, now seen corresponding path program 1 times [2021-12-21 17:06:36,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:36,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892310587] [2021-12-21 17:06:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:36,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 17:06:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 17:06:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 17:06:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:06:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:06:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:36,568 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-21 17:06:36,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:36,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892310587] [2021-12-21 17:06:36,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892310587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:36,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:36,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:36,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015487221] [2021-12-21 17:06:36,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:36,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:36,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:36,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:36,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:36,571 INFO L87 Difference]: Start difference. First operand 12933 states and 17851 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:06:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:40,441 INFO L93 Difference]: Finished difference Result 23750 states and 32875 transitions. [2021-12-21 17:06:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:40,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-12-21 17:06:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:40,507 INFO L225 Difference]: With dead ends: 23750 [2021-12-21 17:06:40,507 INFO L226 Difference]: Without dead ends: 10844 [2021-12-21 17:06:40,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:06:40,562 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 2250 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 1131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2599 SdHoareTripleChecker+Valid, 6291 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:40,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2599 Valid, 6291 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1131 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-21 17:06:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2021-12-21 17:06:40,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 10255. [2021-12-21 17:06:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10255 states, 6993 states have (on average 1.2658372658372659) internal successors, (8852), 7143 states have internal predecessors, (8852), 2594 states have call successors, (2594), 672 states have call predecessors, (2594), 665 states have return successors, (2610), 2535 states have call predecessors, (2610), 2590 states have call successors, (2610) [2021-12-21 17:06:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10255 states to 10255 states and 14056 transitions. [2021-12-21 17:06:40,952 INFO L78 Accepts]: Start accepts. Automaton has 10255 states and 14056 transitions. Word has length 195 [2021-12-21 17:06:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:40,953 INFO L470 AbstractCegarLoop]: Abstraction has 10255 states and 14056 transitions. [2021-12-21 17:06:40,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:06:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 10255 states and 14056 transitions. [2021-12-21 17:06:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 17:06:40,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:40,957 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:40,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:06:40,958 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2021-12-21 17:06:40,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:40,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141293256] [2021-12-21 17:06:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:40,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:06:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:06:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 17:06:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:06:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 17:06:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-12-21 17:06:41,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141293256] [2021-12-21 17:06:41,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141293256] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:41,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:41,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:06:41,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113711050] [2021-12-21 17:06:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:41,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:06:41,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:06:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:06:41,388 INFO L87 Difference]: Start difference. First operand 10255 states and 14056 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:06:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:45,659 INFO L93 Difference]: Finished difference Result 30603 states and 42223 transitions. [2021-12-21 17:06:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:06:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 198 [2021-12-21 17:06:45,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:45,748 INFO L225 Difference]: With dead ends: 30603 [2021-12-21 17:06:45,749 INFO L226 Difference]: Without dead ends: 20535 [2021-12-21 17:06:45,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:06:45,784 INFO L933 BasicCegarLoop]: 3044 mSDtfsCounter, 3278 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1488 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:45,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3729 Valid, 6136 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1488 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-21 17:06:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20535 states. [2021-12-21 17:06:46,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20535 to 19433. [2021-12-21 17:06:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19433 states, 13254 states have (on average 1.264976610834465) internal successors, (16766), 13512 states have internal predecessors, (16766), 4916 states have call successors, (4916), 1269 states have call predecessors, (4916), 1260 states have return successors, (4952), 4831 states have call predecessors, (4952), 4912 states have call successors, (4952) [2021-12-21 17:06:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19433 states to 19433 states and 26634 transitions. [2021-12-21 17:06:46,474 INFO L78 Accepts]: Start accepts. Automaton has 19433 states and 26634 transitions. Word has length 198 [2021-12-21 17:06:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:46,474 INFO L470 AbstractCegarLoop]: Abstraction has 19433 states and 26634 transitions. [2021-12-21 17:06:46,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-21 17:06:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19433 states and 26634 transitions. [2021-12-21 17:06:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 17:06:46,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:46,478 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:46,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:06:46,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:46,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:46,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867753, now seen corresponding path program 1 times [2021-12-21 17:06:46,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:46,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250229953] [2021-12-21 17:06:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:46,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:06:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:06:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 17:06:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:06:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 17:06:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-12-21 17:06:46,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:46,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250229953] [2021-12-21 17:06:46,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250229953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:46,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:46,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:46,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84692517] [2021-12-21 17:06:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:46,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:46,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:46,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:46,973 INFO L87 Difference]: Start difference. First operand 19433 states and 26634 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 17:06:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:50,025 INFO L93 Difference]: Finished difference Result 20537 states and 28381 transitions. [2021-12-21 17:06:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:06:50,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (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 198 [2021-12-21 17:06:50,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:50,142 INFO L225 Difference]: With dead ends: 20537 [2021-12-21 17:06:50,142 INFO L226 Difference]: Without dead ends: 20535 [2021-12-21 17:06:50,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:06:50,163 INFO L933 BasicCegarLoop]: 2453 mSDtfsCounter, 2760 mSDsluCounter, 4864 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 7317 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:50,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3047 Valid, 7317 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1094 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-21 17:06:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20535 states. [2021-12-21 17:06:50,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20535 to 19437. [2021-12-21 17:06:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19437 states, 13257 states have (on average 1.2649166478087048) internal successors, (16769), 13515 states have internal predecessors, (16769), 4916 states have call successors, (4916), 1270 states have call predecessors, (4916), 1261 states have return successors, (4952), 4831 states have call predecessors, (4952), 4912 states have call successors, (4952) [2021-12-21 17:06:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19437 states to 19437 states and 26637 transitions. [2021-12-21 17:06:51,038 INFO L78 Accepts]: Start accepts. Automaton has 19437 states and 26637 transitions. Word has length 198 [2021-12-21 17:06:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:06:51,042 INFO L470 AbstractCegarLoop]: Abstraction has 19437 states and 26637 transitions. [2021-12-21 17:06:51,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 17:06:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 19437 states and 26637 transitions. [2021-12-21 17:06:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-21 17:06:51,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:06:51,047 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:06:51,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:06:51,047 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:06:51,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:06:51,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1422051122, now seen corresponding path program 1 times [2021-12-21 17:06:51,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:06:51,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394057114] [2021-12-21 17:06:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:06:51,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:06:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:06:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:06:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:06:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:06:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:06:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:06:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:06:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:06:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:06:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:06:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 17:06:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:06:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:06:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:06:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 17:06:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:06:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:06:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 17:06:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:06:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 17:06:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:06:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-12-21 17:06:51,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:06:51,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394057114] [2021-12-21 17:06:51,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394057114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:06:51,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:06:51,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:06:51,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671728206] [2021-12-21 17:06:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:06:51,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:06:51,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:06:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:06:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:06:51,471 INFO L87 Difference]: Start difference. First operand 19437 states and 26637 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 17:06:54,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:06:54,473 INFO L93 Difference]: Finished difference Result 20541 states and 28384 transitions. [2021-12-21 17:06:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:06:54,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 203 [2021-12-21 17:06:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:06:54,568 INFO L225 Difference]: With dead ends: 20541 [2021-12-21 17:06:54,568 INFO L226 Difference]: Without dead ends: 20539 [2021-12-21 17:06:54,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:06:54,588 INFO L933 BasicCegarLoop]: 2456 mSDtfsCounter, 2753 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 1093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1093 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-21 17:06:54,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3039 Valid, 7321 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1093 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-21 17:06:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20539 states. [2021-12-21 17:06:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20539 to 19441.