./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.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 e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:54:18,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:54:18,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:54:18,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:54:18,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:54:18,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:54:18,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:54:18,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:54:18,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:54:18,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:54:18,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:54:18,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:54:18,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:54:18,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:54:18,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:54:18,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:54:18,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:54:18,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:54:18,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:54:18,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:54:18,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:54:18,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:54:18,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:54:18,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:54:18,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:54:18,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:54:18,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:54:18,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:54:18,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:54:18,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:54:18,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:54:18,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:54:18,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:54:18,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:54:18,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:54:18,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:54:18,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:54:18,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:54:18,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:54:18,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:54:18,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:54:18,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:54:18,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:54:18,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:54:18,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:54:18,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:54:18,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:54:18,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:54:18,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:54:18,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:54:18,274 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:54:18,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:54:18,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:54:18,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:54:18,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:54:18,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:54:18,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:54:18,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:54:18,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:54:18,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:54:18,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:54:18,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:54:18,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:54:18,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:54:18,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:54:18,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:54:18,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:54:18,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:54:18,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:54:18,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:54:18,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:54:18,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:54:18,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:54:18,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2021-11-17 07:54:18,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:54:18,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:54:18,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:54:18,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:54:18,522 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:54:18,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2021-11-17 07:54:18,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5392a6b6d/f658618610a74688bbd666ff8f029272/FLAGaca8f66a9 [2021-11-17 07:54:19,415 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:54:19,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2021-11-17 07:54:19,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5392a6b6d/f658618610a74688bbd666ff8f029272/FLAGaca8f66a9 [2021-11-17 07:54:19,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5392a6b6d/f658618610a74688bbd666ff8f029272 [2021-11-17 07:54:19,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:54:19,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:54:19,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:54:19,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:54:19,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:54:19,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:19" (1/1) ... [2021-11-17 07:54:19,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdc8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:19, skipping insertion in model container [2021-11-17 07:54:19,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:19" (1/1) ... [2021-11-17 07:54:19,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:54:19,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:54:22,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2021-11-17 07:54:22,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2021-11-17 07:54:22,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2021-11-17 07:54:22,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2021-11-17 07:54:22,215 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:54:22,262 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:54:22,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2021-11-17 07:54:22,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2021-11-17 07:54:22,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2021-11-17 07:54:22,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2021-11-17 07:54:22,590 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:54:22,748 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:54:22,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22 WrapperNode [2021-11-17 07:54:22,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:54:22,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:54:22,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:54:22,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:54:22,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:22,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,030 INFO L137 Inliner]: procedures = 423, calls = 1852, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 4787 [2021-11-17 07:54:23,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:54:23,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:54:23,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:54:23,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:54:23,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:54:23,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:54:23,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:54:23,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:54:23,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (1/1) ... [2021-11-17 07:54:23,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:54:23,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:54:23,293 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) [2021-11-17 07:54:23,302 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 [2021-11-17 07:54:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 07:54:23,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 07:54:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:54:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:54:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:54:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:54:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:54:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 07:54:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 07:54:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 07:54:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 07:54:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 07:54:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 07:54:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 07:54:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2021-11-17 07:54:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2021-11-17 07:54:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 07:54:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 07:54:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-17 07:54:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-17 07:54:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 07:54:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 07:54:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:54:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:54:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2021-11-17 07:54:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2021-11-17 07:54:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 07:54:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 07:54:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 07:54:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 07:54:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 07:54:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 07:54:23,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:54:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:54:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 07:54:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 07:54:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2021-11-17 07:54:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2021-11-17 07:54:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 07:54:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 07:54:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:54:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-17 07:54:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-17 07:54:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 07:54:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 07:54:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 07:54:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 07:54:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:54:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 07:54:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 07:54:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 07:54:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 07:54:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:54:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:54:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:54:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:54:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 07:54:23,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 07:54:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 07:54:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 07:54:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 07:54:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 07:54:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:54:23,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:54:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:54:23,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:54:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 07:54:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 07:54:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 07:54:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 07:54:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:54:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 07:54:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:54:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:54:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:54:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:54:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:54:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2021-11-17 07:54:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2021-11-17 07:54:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:54:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2021-11-17 07:54:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2021-11-17 07:54:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:54:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:54:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:54:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:54:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:54:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 07:54:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 07:54:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:54:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:54:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:54:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:54:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2021-11-17 07:54:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2021-11-17 07:54:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 07:54:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 07:54:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 07:54:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 07:54:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 07:54:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 07:54:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 07:54:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 07:54:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 07:54:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 07:54:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 07:54:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 07:54:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:54:23,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:54:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:54:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:54:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:54:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:54:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:54:23,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 07:54:23,355 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 07:54:23,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 07:54:23,355 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2021-11-17 07:54:23,355 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2021-11-17 07:54:23,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 07:54:23,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 07:54:23,356 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 07:54:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 07:54:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 07:54:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 07:54:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 07:54:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 07:54:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-17 07:54:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-17 07:54:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 07:54:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 07:54:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 07:54:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 07:54:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:54:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2021-11-17 07:54:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2021-11-17 07:54:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2021-11-17 07:54:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2021-11-17 07:54:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:54:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 07:54:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 07:54:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2021-11-17 07:54:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2021-11-17 07:54:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:54:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2021-11-17 07:54:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2021-11-17 07:54:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 07:54:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 07:54:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:54:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:54:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:54:24,166 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:54:24,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:54:24,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:54:28,825 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:54:28,877 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:54:28,898 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:54:28,898 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-17 07:54:28,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:54:28 BoogieIcfgContainer [2021-11-17 07:54:28,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:54:28,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:54:28,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:54:28,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:54:28,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:54:19" (1/3) ... [2021-11-17 07:54:28,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285fa3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:28, skipping insertion in model container [2021-11-17 07:54:28,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:22" (2/3) ... [2021-11-17 07:54:28,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285fa3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:28, skipping insertion in model container [2021-11-17 07:54:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:54:28" (3/3) ... [2021-11-17 07:54:28,912 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2021-11-17 07:54:28,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:54:28,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:54:28,971 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:54:28,980 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 [2021-11-17 07:54:28,980 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:54:29,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 1812 states, 1250 states have (on average 1.2816) internal successors, (1602), 1283 states have internal predecessors, (1602), 482 states have call successors, (482), 83 states have call predecessors, (482), 82 states have return successors, (476), 473 states have call predecessors, (476), 476 states have call successors, (476) [2021-11-17 07:54:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-17 07:54:29,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:29,078 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:54:29,079 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)] === [2021-11-17 07:54:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:29,083 INFO L85 PathProgramCache]: Analyzing trace with hash -51273752, now seen corresponding path program 1 times [2021-11-17 07:54:29,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:29,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512262189] [2021-11-17 07:54:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:29,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 07:54:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:54:29,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:29,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512262189] [2021-11-17 07:54:29,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512262189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:29,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:29,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:29,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211230736] [2021-11-17 07:54:29,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:29,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:29,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:29,999 INFO L87 Difference]: Start difference. First operand has 1812 states, 1250 states have (on average 1.2816) internal successors, (1602), 1283 states have internal predecessors, (1602), 482 states have call successors, (482), 83 states have call predecessors, (482), 82 states have return successors, (476), 473 states have call predecessors, (476), 476 states have call successors, (476) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:54:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:35,471 INFO L93 Difference]: Finished difference Result 5301 states and 7602 transitions. [2021-11-17 07:54:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:35,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2021-11-17 07:54:35,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:35,507 INFO L225 Difference]: With dead ends: 5301 [2021-11-17 07:54:35,507 INFO L226 Difference]: Without dead ends: 3502 [2021-11-17 07:54:35,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:54:35,525 INFO L933 BasicCegarLoop]: 2640 mSDtfsCounter, 2890 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:35,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 5451 Invalid, 3008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1364 Valid, 1644 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 07:54:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-11-17 07:54:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3462. [2021-11-17 07:54:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 2399 states have (on average 1.2746977907461443) internal successors, (3058), 2458 states have internal predecessors, (3058), 900 states have call successors, (900), 161 states have call predecessors, (900), 160 states have return successors, (896), 890 states have call predecessors, (896), 896 states have call successors, (896) [2021-11-17 07:54:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4854 transitions. [2021-11-17 07:54:35,816 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4854 transitions. Word has length 127 [2021-11-17 07:54:35,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:54:35,819 INFO L470 AbstractCegarLoop]: Abstraction has 3462 states and 4854 transitions. [2021-11-17 07:54:35,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:54:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4854 transitions. [2021-11-17 07:54:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 07:54:35,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:35,835 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:54:35,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:54:35,836 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)] === [2021-11-17 07:54:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1623552778, now seen corresponding path program 1 times [2021-11-17 07:54:35,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:35,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363755590] [2021-11-17 07:54:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:35,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 07:54:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 07:54:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 07:54:36,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:36,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363755590] [2021-11-17 07:54:36,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363755590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:36,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:36,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:36,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364584920] [2021-11-17 07:54:36,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:36,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:36,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:36,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:36,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:36,215 INFO L87 Difference]: Start difference. First operand 3462 states and 4854 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:54:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:40,003 INFO L93 Difference]: Finished difference Result 10254 states and 14407 transitions. [2021-11-17 07:54:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:40,004 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2021-11-17 07:54:40,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:40,056 INFO L225 Difference]: With dead ends: 10254 [2021-11-17 07:54:40,057 INFO L226 Difference]: Without dead ends: 6815 [2021-11-17 07:54:40,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:54:40,082 INFO L933 BasicCegarLoop]: 2674 mSDtfsCounter, 2853 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 1399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1399 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:40,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 5528 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1399 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-17 07:54:40,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2021-11-17 07:54:40,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6731. [2021-11-17 07:54:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6731 states, 4678 states have (on average 1.2768277041470715) internal successors, (5973), 4800 states have internal predecessors, (5973), 1727 states have call successors, (1727), 320 states have call predecessors, (1727), 323 states have return successors, (1743), 1702 states have call predecessors, (1743), 1723 states have call successors, (1743) [2021-11-17 07:54:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6731 states to 6731 states and 9443 transitions. [2021-11-17 07:54:40,419 INFO L78 Accepts]: Start accepts. Automaton has 6731 states and 9443 transitions. Word has length 131 [2021-11-17 07:54:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:54:40,421 INFO L470 AbstractCegarLoop]: Abstraction has 6731 states and 9443 transitions. [2021-11-17 07:54:40,422 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 07:54:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6731 states and 9443 transitions. [2021-11-17 07:54:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-17 07:54:40,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:40,430 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:54:40,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:54:40,430 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)] === [2021-11-17 07:54:40,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:40,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1959591139, now seen corresponding path program 1 times [2021-11-17 07:54:40,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:40,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166872922] [2021-11-17 07:54:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:40,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:54:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:54:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 07:54:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-17 07:54:40,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:40,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166872922] [2021-11-17 07:54:40,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166872922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:40,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:40,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:40,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964889133] [2021-11-17 07:54:40,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:40,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:40,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:40,849 INFO L87 Difference]: Start difference. First operand 6731 states and 9443 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:54:44,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:44,215 INFO L93 Difference]: Finished difference Result 14330 states and 20044 transitions. [2021-11-17 07:54:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:44,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 148 [2021-11-17 07:54:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:44,258 INFO L225 Difference]: With dead ends: 14330 [2021-11-17 07:54:44,258 INFO L226 Difference]: Without dead ends: 7622 [2021-11-17 07:54:44,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:54:44,283 INFO L933 BasicCegarLoop]: 2546 mSDtfsCounter, 1979 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:44,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2272 Valid, 5346 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 07:54:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7622 states. [2021-11-17 07:54:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7622 to 7523. [2021-11-17 07:54:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7523 states, 5260 states have (on average 1.2699619771863118) internal successors, (6680), 5387 states have internal predecessors, (6680), 1863 states have call successors, (1863), 398 states have call predecessors, (1863), 397 states have return successors, (1869), 1835 states have call predecessors, (1869), 1859 states have call successors, (1869) [2021-11-17 07:54:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7523 states to 7523 states and 10412 transitions. [2021-11-17 07:54:44,613 INFO L78 Accepts]: Start accepts. Automaton has 7523 states and 10412 transitions. Word has length 148 [2021-11-17 07:54:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:54:44,614 INFO L470 AbstractCegarLoop]: Abstraction has 7523 states and 10412 transitions. [2021-11-17 07:54:44,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:54:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7523 states and 10412 transitions. [2021-11-17 07:54:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-17 07:54:44,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:44,618 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:54:44,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:54:44,619 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)] === [2021-11-17 07:54:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:44,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1743567862, now seen corresponding path program 1 times [2021-11-17 07:54:44,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:44,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939048584] [2021-11-17 07:54:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:44,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 07:54:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 07:54:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:54:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 07:54:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 07:54:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-17 07:54:44,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:44,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939048584] [2021-11-17 07:54:44,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939048584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:44,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:44,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:44,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253923278] [2021-11-17 07:54:44,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:44,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:44,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:44,915 INFO L87 Difference]: Start difference. First operand 7523 states and 10412 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 07:54:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:48,662 INFO L93 Difference]: Finished difference Result 18923 states and 26061 transitions. [2021-11-17 07:54:48,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:48,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2021-11-17 07:54:48,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:48,730 INFO L225 Difference]: With dead ends: 18923 [2021-11-17 07:54:48,731 INFO L226 Difference]: Without dead ends: 11423 [2021-11-17 07:54:48,763 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 [2021-11-17 07:54:48,765 INFO L933 BasicCegarLoop]: 2736 mSDtfsCounter, 2551 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 1291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1291 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:48,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 5660 Invalid, 2802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1291 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-17 07:54:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2021-11-17 07:54:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 11296. [2021-11-17 07:54:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11296 states, 7864 states have (on average 1.2553407934893184) internal successors, (9872), 8063 states have internal predecessors, (9872), 2781 states have call successors, (2781), 651 states have call predecessors, (2781), 648 states have return successors, (2809), 2721 states have call predecessors, (2809), 2777 states have call successors, (2809) [2021-11-17 07:54:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11296 states to 11296 states and 15462 transitions. [2021-11-17 07:54:49,242 INFO L78 Accepts]: Start accepts. Automaton has 11296 states and 15462 transitions. Word has length 150 [2021-11-17 07:54:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:54:49,244 INFO L470 AbstractCegarLoop]: Abstraction has 11296 states and 15462 transitions. [2021-11-17 07:54:49,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-17 07:54:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 11296 states and 15462 transitions. [2021-11-17 07:54:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-17 07:54:49,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:49,248 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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] [2021-11-17 07:54:49,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:54:49,248 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-17 07:54:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1079779650, now seen corresponding path program 1 times [2021-11-17 07:54:49,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:49,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587389938] [2021-11-17 07:54:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:49,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 07:54:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:54:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:54:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-17 07:54:49,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:49,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587389938] [2021-11-17 07:54:49,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587389938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:49,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:49,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:49,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575996668] [2021-11-17 07:54:49,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:49,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:49,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:49,514 INFO L87 Difference]: Start difference. First operand 11296 states and 15462 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:54:53,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:53,031 INFO L93 Difference]: Finished difference Result 28774 states and 39503 transitions. [2021-11-17 07:54:53,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:53,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 153 [2021-11-17 07:54:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:53,128 INFO L225 Difference]: With dead ends: 28774 [2021-11-17 07:54:53,129 INFO L226 Difference]: Without dead ends: 17501 [2021-11-17 07:54:53,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:54:53,187 INFO L933 BasicCegarLoop]: 2607 mSDtfsCounter, 2638 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 1383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1383 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:53,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3039 Valid, 5404 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1383 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-17 07:54:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17501 states. [2021-11-17 07:54:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17501 to 17285. [2021-11-17 07:54:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17285 states, 11983 states have (on average 1.2551948593841276) internal successors, (15041), 12310 states have internal predecessors, (15041), 4296 states have call successors, (4296), 1010 states have call predecessors, (4296), 1003 states have return successors, (4356), 4172 states have call predecessors, (4356), 4292 states have call successors, (4356) [2021-11-17 07:54:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17285 states to 17285 states and 23693 transitions. [2021-11-17 07:54:53,934 INFO L78 Accepts]: Start accepts. Automaton has 17285 states and 23693 transitions. Word has length 153 [2021-11-17 07:54:53,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:54:53,934 INFO L470 AbstractCegarLoop]: Abstraction has 17285 states and 23693 transitions. [2021-11-17 07:54:53,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:54:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 17285 states and 23693 transitions. [2021-11-17 07:54:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-17 07:54:53,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:54:53,938 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-17 07:54:53,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:54:53,938 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-17 07:54:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:54:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash -581395057, now seen corresponding path program 1 times [2021-11-17 07:54:53,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:54:53,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468899808] [2021-11-17 07:54:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:54:53,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:54:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:54:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:54:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:54:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:54:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:54:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:54:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:54:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:54:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:54:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:54:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:54:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:54:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 07:54:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 07:54:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:54:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:54:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-17 07:54:54,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:54:54,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468899808] [2021-11-17 07:54:54,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468899808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:54:54,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:54:54,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:54:54,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614253154] [2021-11-17 07:54:54,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:54:54,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:54:54,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:54:54,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:54:54,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:54:54,167 INFO L87 Difference]: Start difference. First operand 17285 states and 23693 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-11-17 07:54:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:54:58,606 INFO L93 Difference]: Finished difference Result 51605 states and 70913 transitions. [2021-11-17 07:54:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:54:58,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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 154 [2021-11-17 07:54:58,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:54:58,787 INFO L225 Difference]: With dead ends: 51605 [2021-11-17 07:54:58,787 INFO L226 Difference]: Without dead ends: 34343 [2021-11-17 07:54:58,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:54:58,867 INFO L933 BasicCegarLoop]: 2728 mSDtfsCounter, 2886 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 1401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1401 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:54:58,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3325 Valid, 5611 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1401 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-17 07:54:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34343 states. [2021-11-17 07:55:00,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34343 to 33937. [2021-11-17 07:55:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33937 states, 23473 states have (on average 1.2561240574276828) internal successors, (29485), 24147 states have internal predecessors, (29485), 8492 states have call successors, (8492), 1982 states have call predecessors, (8492), 1969 states have return successors, (8616), 8223 states have call predecessors, (8616), 8488 states have call successors, (8616) [2021-11-17 07:55:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33937 states to 33937 states and 46593 transitions. [2021-11-17 07:55:00,486 INFO L78 Accepts]: Start accepts. Automaton has 33937 states and 46593 transitions. Word has length 154 [2021-11-17 07:55:00,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:00,487 INFO L470 AbstractCegarLoop]: Abstraction has 33937 states and 46593 transitions. [2021-11-17 07:55:00,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-11-17 07:55:00,488 INFO L276 IsEmpty]: Start isEmpty. Operand 33937 states and 46593 transitions. [2021-11-17 07:55:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-17 07:55:00,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:00,490 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:00,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:55:00,491 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)] === [2021-11-17 07:55:00,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1325471927, now seen corresponding path program 1 times [2021-11-17 07:55:00,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:00,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922805859] [2021-11-17 07:55:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:00,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 07:55:00,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:00,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922805859] [2021-11-17 07:55:00,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922805859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:00,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:00,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:55:00,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990952163] [2021-11-17 07:55:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:00,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:55:00,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:55:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:55:00,901 INFO L87 Difference]: Start difference. First operand 33937 states and 46593 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:55:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:05,459 INFO L93 Difference]: Finished difference Result 100487 states and 138167 transitions. [2021-11-17 07:55:05,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:55:05,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2021-11-17 07:55:05,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:05,814 INFO L225 Difference]: With dead ends: 100487 [2021-11-17 07:55:05,814 INFO L226 Difference]: Without dead ends: 66629 [2021-11-17 07:55:05,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:05,964 INFO L933 BasicCegarLoop]: 2821 mSDtfsCounter, 2811 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 1316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1316 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:05,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3237 Valid, 5777 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1316 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-17 07:55:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66629 states. [2021-11-17 07:55:08,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66629 to 65929. [2021-11-17 07:55:08,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65929 states, 45719 states have (on average 1.2558673636781208) internal successors, (57417), 46921 states have internal predecessors, (57417), 16382 states have call successors, (16382), 3834 states have call predecessors, (16382), 3825 states have return successors, (16634), 16005 states have call predecessors, (16634), 16378 states have call successors, (16634) [2021-11-17 07:55:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65929 states to 65929 states and 90433 transitions. [2021-11-17 07:55:08,646 INFO L78 Accepts]: Start accepts. Automaton has 65929 states and 90433 transitions. Word has length 183 [2021-11-17 07:55:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:08,647 INFO L470 AbstractCegarLoop]: Abstraction has 65929 states and 90433 transitions. [2021-11-17 07:55:08,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 07:55:08,648 INFO L276 IsEmpty]: Start isEmpty. Operand 65929 states and 90433 transitions. [2021-11-17 07:55:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-17 07:55:08,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:08,650 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:08,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:55:08,650 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1184923317, now seen corresponding path program 1 times [2021-11-17 07:55:08,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:08,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853434291] [2021-11-17 07:55:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:08,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 07:55:09,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:09,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853434291] [2021-11-17 07:55:09,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853434291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:09,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:09,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:55:09,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422361070] [2021-11-17 07:55:09,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:09,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:55:09,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:55:09,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:55:09,223 INFO L87 Difference]: Start difference. First operand 65929 states and 90433 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:55:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:13,529 INFO L93 Difference]: Finished difference Result 66631 states and 91511 transitions. [2021-11-17 07:55:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:55:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2021-11-17 07:55:13,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:13,789 INFO L225 Difference]: With dead ends: 66631 [2021-11-17 07:55:13,789 INFO L226 Difference]: Without dead ends: 66629 [2021-11-17 07:55:13,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:55:13,828 INFO L933 BasicCegarLoop]: 2329 mSDtfsCounter, 2411 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 6984 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:13,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2687 Valid, 6984 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-17 07:55:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66629 states. [2021-11-17 07:55:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66629 to 65933. [2021-11-17 07:55:15,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65933 states, 45722 states have (on average 1.2558505752154323) internal successors, (57420), 46924 states have internal predecessors, (57420), 16382 states have call successors, (16382), 3835 states have call predecessors, (16382), 3826 states have return successors, (16634), 16005 states have call predecessors, (16634), 16378 states have call successors, (16634) [2021-11-17 07:55:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65933 states to 65933 states and 90436 transitions. [2021-11-17 07:55:16,175 INFO L78 Accepts]: Start accepts. Automaton has 65933 states and 90436 transitions. Word has length 183 [2021-11-17 07:55:16,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:16,176 INFO L470 AbstractCegarLoop]: Abstraction has 65933 states and 90436 transitions. [2021-11-17 07:55:16,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 07:55:16,176 INFO L276 IsEmpty]: Start isEmpty. Operand 65933 states and 90436 transitions. [2021-11-17 07:55:16,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 07:55:16,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:16,179 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:16,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:55:16,179 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:16,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1299513614, now seen corresponding path program 1 times [2021-11-17 07:55:16,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:16,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228137438] [2021-11-17 07:55:16,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:16,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:55:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 07:55:16,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:16,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228137438] [2021-11-17 07:55:16,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228137438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:16,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:16,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:55:16,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318507240] [2021-11-17 07:55:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:16,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:55:16,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:16,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:55:16,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:55:16,578 INFO L87 Difference]: Start difference. First operand 65933 states and 90436 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-17 07:55:18,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:55:21,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:21,943 INFO L93 Difference]: Finished difference Result 66635 states and 91514 transitions. [2021-11-17 07:55:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:55:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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 188 [2021-11-17 07:55:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:22,356 INFO L225 Difference]: With dead ends: 66635 [2021-11-17 07:55:22,356 INFO L226 Difference]: Without dead ends: 66633 [2021-11-17 07:55:22,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:55:22,384 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 2403 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2679 SdHoareTripleChecker+Valid, 6987 SdHoareTripleChecker+Invalid, 2826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:22,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2679 Valid, 6987 Invalid, 2826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [957 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-17 07:55:22,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66633 states. [2021-11-17 07:55:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66633 to 65937. [2021-11-17 07:55:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65937 states, 45725 states have (on average 1.2558337889557134) internal successors, (57423), 46927 states have internal predecessors, (57423), 16382 states have call successors, (16382), 3836 states have call predecessors, (16382), 3827 states have return successors, (16634), 16005 states have call predecessors, (16634), 16378 states have call successors, (16634) [2021-11-17 07:55:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65937 states to 65937 states and 90439 transitions. [2021-11-17 07:55:24,815 INFO L78 Accepts]: Start accepts. Automaton has 65937 states and 90439 transitions. Word has length 188 [2021-11-17 07:55:24,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:24,816 INFO L470 AbstractCegarLoop]: Abstraction has 65937 states and 90439 transitions. [2021-11-17 07:55:24,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-17 07:55:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 65937 states and 90439 transitions. [2021-11-17 07:55:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-17 07:55:24,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:24,822 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:24,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:55:24,822 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 656148843, now seen corresponding path program 1 times [2021-11-17 07:55:24,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:24,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031706881] [2021-11-17 07:55:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:24,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:24,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:55:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:55:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:25,217 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-11-17 07:55:25,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:25,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031706881] [2021-11-17 07:55:25,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031706881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:25,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:25,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:55:25,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640492364] [2021-11-17 07:55:25,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:25,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:55:25,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:25,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:55:25,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:55:25,220 INFO L87 Difference]: Start difference. First operand 65937 states and 90439 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-17 07:55:26,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:55:30,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:30,590 INFO L93 Difference]: Finished difference Result 66639 states and 91517 transitions. [2021-11-17 07:55:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:55:30,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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 193 [2021-11-17 07:55:30,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:30,994 INFO L225 Difference]: With dead ends: 66639 [2021-11-17 07:55:30,995 INFO L226 Difference]: Without dead ends: 66637 [2021-11-17 07:55:31,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:55:31,025 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 2403 mSDsluCounter, 4655 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2679 SdHoareTripleChecker+Valid, 6987 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:31,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2679 Valid, 6987 Invalid, 2825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-17 07:55:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66637 states. [2021-11-17 07:55:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66637 to 65941. [2021-11-17 07:55:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65941 states, 45728 states have (on average 1.2558170048985304) internal successors, (57426), 46930 states have internal predecessors, (57426), 16382 states have call successors, (16382), 3837 states have call predecessors, (16382), 3828 states have return successors, (16634), 16005 states have call predecessors, (16634), 16378 states have call successors, (16634) [2021-11-17 07:55:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65941 states to 65941 states and 90442 transitions. [2021-11-17 07:55:33,499 INFO L78 Accepts]: Start accepts. Automaton has 65941 states and 90442 transitions. Word has length 193 [2021-11-17 07:55:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:33,499 INFO L470 AbstractCegarLoop]: Abstraction has 65941 states and 90442 transitions. [2021-11-17 07:55:33,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-17 07:55:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 65941 states and 90442 transitions. [2021-11-17 07:55:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 07:55:33,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:33,504 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:33,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:55:33,505 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:33,505 INFO L85 PathProgramCache]: Analyzing trace with hash -75269435, now seen corresponding path program 1 times [2021-11-17 07:55:33,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:33,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341712985] [2021-11-17 07:55:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:33,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:55:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:55:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:55:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 07:55:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 07:55:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-17 07:55:33,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:33,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341712985] [2021-11-17 07:55:33,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341712985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:33,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:33,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:55:33,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356096021] [2021-11-17 07:55:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:33,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:55:33,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:55:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:55:33,829 INFO L87 Difference]: Start difference. First operand 65941 states and 90442 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:55:36,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:55:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:46,016 INFO L93 Difference]: Finished difference Result 164906 states and 226500 transitions. [2021-11-17 07:55:46,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:55:46,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 209 [2021-11-17 07:55:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:46,556 INFO L225 Difference]: With dead ends: 164906 [2021-11-17 07:55:46,557 INFO L226 Difference]: Without dead ends: 99044 [2021-11-17 07:55:46,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:55:46,783 INFO L933 BasicCegarLoop]: 4352 mSDtfsCounter, 2942 mSDsluCounter, 4736 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 2229 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 9088 SdHoareTripleChecker+Invalid, 5232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2229 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:46,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3230 Valid, 9088 Invalid, 5232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2229 Valid, 3002 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-17 07:55:46,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99044 states. [2021-11-17 07:55:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99044 to 97965. [2021-11-17 07:55:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97965 states, 68006 states have (on average 1.25562450372026) internal successors, (85390), 69736 states have internal predecessors, (85390), 24272 states have call successors, (24272), 5689 states have call predecessors, (24272), 5684 states have return successors, (24652), 23787 states have call predecessors, (24652), 24268 states have call successors, (24652) [2021-11-17 07:55:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97965 states to 97965 states and 134314 transitions. [2021-11-17 07:55:51,117 INFO L78 Accepts]: Start accepts. Automaton has 97965 states and 134314 transitions. Word has length 209 [2021-11-17 07:55:51,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:55:51,118 INFO L470 AbstractCegarLoop]: Abstraction has 97965 states and 134314 transitions. [2021-11-17 07:55:51,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:55:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 97965 states and 134314 transitions. [2021-11-17 07:55:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-17 07:55:51,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:55:51,122 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:55:51,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 07:55:51,122 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:55:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:55:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1002915246, now seen corresponding path program 1 times [2021-11-17 07:55:51,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:55:51,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401801073] [2021-11-17 07:55:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:55:51,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:55:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:55:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:55:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:55:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:55:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:55:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:55:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:55:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:55:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:55:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:55:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 07:55:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 07:55:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 07:55:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:55:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:55:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 07:55:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 07:55:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 07:55:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:55:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:55:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 07:55:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:55:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-11-17 07:55:51,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:55:51,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401801073] [2021-11-17 07:55:51,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401801073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:55:51,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:55:51,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:55:51,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007250566] [2021-11-17 07:55:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:55:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:55:51,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:55:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:55:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:55:51,514 INFO L87 Difference]: Start difference. First operand 97965 states and 134314 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:55:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:55:57,017 INFO L93 Difference]: Finished difference Result 99015 states and 135924 transitions. [2021-11-17 07:55:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:55:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 198 [2021-11-17 07:55:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:55:57,462 INFO L225 Difference]: With dead ends: 99015 [2021-11-17 07:55:57,462 INFO L226 Difference]: Without dead ends: 99013 [2021-11-17 07:55:57,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:55:57,683 INFO L933 BasicCegarLoop]: 2331 mSDtfsCounter, 2403 mSDsluCounter, 4652 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 6983 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:55:57,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2680 Valid, 6983 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 07:55:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99013 states. [2021-11-17 07:56:01,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99013 to 97969. [2021-11-17 07:56:01,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97969 states, 68009 states have (on average 1.2556132276610448) internal successors, (85393), 69739 states have internal predecessors, (85393), 24272 states have call successors, (24272), 5690 states have call predecessors, (24272), 5685 states have return successors, (24652), 23787 states have call predecessors, (24652), 24268 states have call successors, (24652) [2021-11-17 07:56:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97969 states to 97969 states and 134317 transitions. [2021-11-17 07:56:01,999 INFO L78 Accepts]: Start accepts. Automaton has 97969 states and 134317 transitions. Word has length 198 [2021-11-17 07:56:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:56:01,999 INFO L470 AbstractCegarLoop]: Abstraction has 97969 states and 134317 transitions. [2021-11-17 07:56:02,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:56:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 97969 states and 134317 transitions. [2021-11-17 07:56:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 07:56:02,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:56:02,003 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:56:02,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 07:56:02,003 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:56:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:56:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -673801845, now seen corresponding path program 1 times [2021-11-17 07:56:02,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:56:02,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694947325] [2021-11-17 07:56:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:56:02,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:56:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat