./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-mutex_drivers-media-usb-gspca-gspca_ov519.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-mutex_drivers-media-usb-gspca-gspca_ov519.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 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:13:52,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:13:52,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:13:52,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:13:52,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:13:52,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:13:52,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:13:52,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:13:52,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:13:52,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:13:52,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:13:52,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:13:52,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:13:52,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:13:52,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:13:52,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:13:52,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:13:52,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:13:52,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:13:52,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:13:52,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:13:52,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:13:52,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:13:52,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:13:52,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:13:52,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:13:52,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:13:52,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:13:52,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:13:52,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:13:52,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:13:52,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:13:52,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:13:52,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:13:52,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:13:52,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:13:52,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:13:52,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:13:52,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:13:52,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:13:52,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:13:52,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:13:52,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:13:52,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:13:52,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:13:52,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:13:52,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:13:52,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:13:52,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:13:52,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:13:52,196 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:13:52,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:13:52,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:13:52,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:13:52,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:13:52,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:13:52,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:13:52,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:13:52,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:13:52,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:13:52,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:13:52,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:13:52,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:13:52,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:13:52,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:13:52,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:13:52,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:13:52,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:13:52,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b786c7288de9cf8dd0401decdda2bff73e49ac511bb0e3840e790a5ca68ebcc [2021-11-17 07:13:52,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:13:52,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:13:52,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:13:52,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:13:52,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:13:52,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-17 07:13:52,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457cc16d/9e76f5d25f5346e79ea21749139a462d/FLAG8af5b6de7 [2021-11-17 07:13:53,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:13:53,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-17 07:13:53,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457cc16d/9e76f5d25f5346e79ea21749139a462d/FLAG8af5b6de7 [2021-11-17 07:13:53,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457cc16d/9e76f5d25f5346e79ea21749139a462d [2021-11-17 07:13:53,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:13:53,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:13:53,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:13:53,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:13:53,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:13:53,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:13:53" (1/1) ... [2021-11-17 07:13:53,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e620390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:53, skipping insertion in model container [2021-11-17 07:13:53,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:13:53" (1/1) ... [2021-11-17 07:13:53,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:13:53,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:13:55,281 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-17 07:13:55,284 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-17 07:13:55,284 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-17 07:13:55,285 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-17 07:13:55,294 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:13:55,375 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:13:55,747 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352069,352082] [2021-11-17 07:13:55,748 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352235,352248] [2021-11-17 07:13:55,748 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352399,352412] [2021-11-17 07:13:55,748 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-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i[352564,352577] [2021-11-17 07:13:55,751 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:13:55,928 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:13:55,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55 WrapperNode [2021-11-17 07:13:55,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:13:55,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:13:55,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:13:55,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:13:55,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,364 INFO L137 Inliner]: procedures = 265, calls = 5685, calls flagged for inlining = 126, calls inlined = 112, statements flattened = 8268 [2021-11-17 07:13:56,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:13:56,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:13:56,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:13:56,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:13:56,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:13:56,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:13:56,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:13:56,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:13:56,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (1/1) ... [2021-11-17 07:13:56,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:13:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:13:56,804 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 07:13:56,828 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 07:13:56,849 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-11-17 07:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-11-17 07:13:56,850 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-11-17 07:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-11-17 07:13:56,850 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-11-17 07:13:56,850 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-11-17 07:13:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 07:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 07:13:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-11-17 07:13:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-11-17 07:13:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:13:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:13:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:13:56,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-11-17 07:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-11-17 07:13:56,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:13:56,852 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-11-17 07:13:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-11-17 07:13:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-11-17 07:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-11-17 07:13:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 07:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 07:13:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-11-17 07:13:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-11-17 07:13:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-11-17 07:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-11-17 07:13:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-11-17 07:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-11-17 07:13:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:13:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-17 07:13:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-17 07:13:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-11-17 07:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-11-17 07:13:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-11-17 07:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-11-17 07:13:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:13:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:13:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:13:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-11-17 07:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-11-17 07:13:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-11-17 07:13:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-11-17 07:13:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-17 07:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-17 07:13:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-17 07:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-17 07:13:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:13:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:13:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:13:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-11-17 07:13:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-11-17 07:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-11-17 07:13:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-11-17 07:13:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-11-17 07:13:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-11-17 07:13:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-11-17 07:13:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-11-17 07:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-11-17 07:13:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-11-17 07:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:13:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-17 07:13:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-17 07:13:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-11-17 07:13:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-11-17 07:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:13:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-11-17 07:13:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-11-17 07:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-11-17 07:13:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-11-17 07:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:13:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-11-17 07:13:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-11-17 07:13:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-11-17 07:13:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-11-17 07:13:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 07:13:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 07:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 07:13:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 07:13:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-11-17 07:13:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-11-17 07:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-11-17 07:13:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-11-17 07:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-11-17 07:13:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-11-17 07:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:13:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-17 07:13:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-11-17 07:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-17 07:13:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-17 07:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-11-17 07:13:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-11-17 07:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-11-17 07:13:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-11-17 07:13:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-11-17 07:13:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-11-17 07:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-11-17 07:13:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-11-17 07:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-11-17 07:13:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-11-17 07:13:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-11-17 07:13:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-11-17 07:13:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:13:56,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:13:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:13:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-11-17 07:13:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-11-17 07:13:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:13:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:13:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:13:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:13:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:13:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:13:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:13:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 07:13:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 07:13:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-11-17 07:13:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-11-17 07:13:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-11-17 07:13:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-11-17 07:13:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-11-17 07:13:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-11-17 07:13:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:13:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:13:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-11-17 07:13:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-11-17 07:13:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-11-17 07:13:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-11-17 07:13:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-11-17 07:13:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-11-17 07:13:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-11-17 07:13:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-11-17 07:13:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-11-17 07:13:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-11-17 07:13:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-11-17 07:13:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-11-17 07:13:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:13:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-11-17 07:13:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-11-17 07:13:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-11-17 07:13:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-11-17 07:13:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:13:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:13:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-11-17 07:13:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-11-17 07:13:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-11-17 07:13:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-11-17 07:13:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:13:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:13:57,494 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:13:57,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:14:07,590 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:17:51,353 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:17:51,552 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:17:51,568 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:17:51,568 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 07:17:51,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:17:51 BoogieIcfgContainer [2021-11-17 07:17:51,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:17:51,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:17:51,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:17:51,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:17:51,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:13:53" (1/3) ... [2021-11-17 07:17:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b3cbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:17:51, skipping insertion in model container [2021-11-17 07:17:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:13:55" (2/3) ... [2021-11-17 07:17:51,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b3cbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:17:51, skipping insertion in model container [2021-11-17 07:17:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:17:51" (3/3) ... [2021-11-17 07:17:51,583 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-11-17 07:17:51,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:17:51,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 07:17:51,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:17:51,653 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 07:17:51,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 07:17:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-17 07:17:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-17 07:17:51,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:17:51,735 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:17:51,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:17:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:17:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash 676699453, now seen corresponding path program 1 times [2021-11-17 07:17:51,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:17:51,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611026326] [2021-11-17 07:17:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:17:51,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:17:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:17:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:17:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:17:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:17:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:17:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:17:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:17:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:17:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:17:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:17:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 07:17:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:52,942 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 07:17:52,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:17:52,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611026326] [2021-11-17 07:17:52,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611026326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:17:52,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:17:52,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:17:52,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738296437] [2021-11-17 07:17:52,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:17:52,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:17:52,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:17:52,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:17:52,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:17:52,978 INFO L87 Difference]: Start difference. First operand has 2124 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 621 states have call successors, (621), 72 states have call predecessors, (621), 71 states have return successors, (614), 545 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:17:55,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:57,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:00,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:02,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:04,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:06,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:08,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:10,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:11,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:14,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:18,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:24,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:30,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:18:51,379 INFO L93 Difference]: Finished difference Result 6967 states and 11225 transitions. [2021-11-17 07:18:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:18:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-11-17 07:18:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:18:51,477 INFO L225 Difference]: With dead ends: 6967 [2021-11-17 07:18:51,477 INFO L226 Difference]: Without dead ends: 4855 [2021-11-17 07:18:51,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:18:51,519 INFO L933 BasicCegarLoop]: 3714 mSDtfsCounter, 4900 mSDsluCounter, 4558 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 2311 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5504 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 4779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2311 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:18:51,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5504 Valid, 8272 Invalid, 4779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2311 Valid, 2457 Invalid, 11 Unknown, 0 Unchecked, 57.4s Time] [2021-11-17 07:18:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2021-11-17 07:18:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4334. [2021-11-17 07:18:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 2916 states have (on average 1.4519890260631) internal successors, (4234), 3119 states have internal predecessors, (4234), 1274 states have call successors, (1274), 135 states have call predecessors, (1274), 143 states have return successors, (1410), 1143 states have call predecessors, (1410), 1270 states have call successors, (1410) [2021-11-17 07:18:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 6918 transitions. [2021-11-17 07:18:52,031 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 6918 transitions. Word has length 129 [2021-11-17 07:18:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:18:52,032 INFO L470 AbstractCegarLoop]: Abstraction has 4334 states and 6918 transitions. [2021-11-17 07:18:52,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 07:18:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 6918 transitions. [2021-11-17 07:18:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 07:18:52,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:18:52,071 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:18:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:18:52,072 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:18:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:18:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1410822559, now seen corresponding path program 1 times [2021-11-17 07:18:52,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:18:52,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325372371] [2021-11-17 07:18:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:18:52,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:18:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:18:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:18:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:18:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:18:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:18:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:18:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:18:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:18:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:18:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:18:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:18:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:18:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 07:18:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:18:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 07:18:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:18:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:18:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-17 07:18:53,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:18:53,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325372371] [2021-11-17 07:18:53,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325372371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:18:53,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:18:53,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:18:53,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002594541] [2021-11-17 07:18:53,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:18:53,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:18:53,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:18:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:18:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:18:53,356 INFO L87 Difference]: Start difference. First operand 4334 states and 6918 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, (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 07:18:55,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:58,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:01,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:03,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:05,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:08,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:09,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:11,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:12,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:13,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:18,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:23,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:38,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:48,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:03,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:20:03,191 INFO L93 Difference]: Finished difference Result 5787 states and 9463 transitions. [2021-11-17 07:20:03,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:20:03,192 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, (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 188 [2021-11-17 07:20:03,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:20:03,262 INFO L225 Difference]: With dead ends: 5787 [2021-11-17 07:20:03,263 INFO L226 Difference]: Without dead ends: 5785 [2021-11-17 07:20:03,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:20:03,275 INFO L933 BasicCegarLoop]: 3498 mSDtfsCounter, 4223 mSDsluCounter, 8487 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 1956 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4652 SdHoareTripleChecker+Valid, 11985 SdHoareTripleChecker+Invalid, 5854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:20:03,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4652 Valid, 11985 Invalid, 5854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1956 Valid, 3888 Invalid, 10 Unknown, 0 Unchecked, 68.5s Time] [2021-11-17 07:20:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2021-11-17 07:20:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 4818. [2021-11-17 07:20:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 3271 states have (on average 1.4524610210944666) internal successors, (4751), 3496 states have internal predecessors, (4751), 1379 states have call successors, (1379), 165 states have call predecessors, (1379), 167 states have return successors, (1387), 1228 states have call predecessors, (1387), 1375 states have call successors, (1387) [2021-11-17 07:20:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 7517 transitions. [2021-11-17 07:20:03,620 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 7517 transitions. Word has length 188 [2021-11-17 07:20:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:20:03,622 INFO L470 AbstractCegarLoop]: Abstraction has 4818 states and 7517 transitions. [2021-11-17 07:20:03,623 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, (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 07:20:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 7517 transitions. [2021-11-17 07:20:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-17 07:20:03,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:20:03,651 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:20:03,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:20:03,653 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:20:03,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:20:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1001375550, now seen corresponding path program 1 times [2021-11-17 07:20:03,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:20:03,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113235438] [2021-11-17 07:20:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:20:03,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:20:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:20:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:20:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:20:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:20:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:20:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:20:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:20:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:20:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:20:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:20:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:20:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:20:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 07:20:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:20:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 07:20:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:20:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:20:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:20:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-17 07:20:04,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:20:04,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113235438] [2021-11-17 07:20:04,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113235438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:20:04,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:20:04,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:20:04,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831122331] [2021-11-17 07:20:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:20:04,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:20:04,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:20:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:20:04,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:20:04,790 INFO L87 Difference]: Start difference. First operand 4818 states and 7517 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:20:06,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:10,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:12,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:14,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:16,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:19,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:20,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:21,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:22,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:24,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:29,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:34,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:48,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:58,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:21:13,780 INFO L93 Difference]: Finished difference Result 5791 states and 9466 transitions. [2021-11-17 07:21:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:21:13,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 193 [2021-11-17 07:21:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:21:13,845 INFO L225 Difference]: With dead ends: 5791 [2021-11-17 07:21:13,845 INFO L226 Difference]: Without dead ends: 5789 [2021-11-17 07:21:13,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:21:13,857 INFO L933 BasicCegarLoop]: 3508 mSDtfsCounter, 4216 mSDsluCounter, 8508 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 1954 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 12016 SdHoareTripleChecker+Invalid, 5852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:21:13,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4638 Valid, 12016 Invalid, 5852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1954 Valid, 3888 Invalid, 10 Unknown, 0 Unchecked, 67.8s Time] [2021-11-17 07:21:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2021-11-17 07:21:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 4822. [2021-11-17 07:21:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 3274 states have (on average 1.4520464263897372) internal successors, (4754), 3499 states have internal predecessors, (4754), 1379 states have call successors, (1379), 166 states have call predecessors, (1379), 168 states have return successors, (1387), 1228 states have call predecessors, (1387), 1375 states have call successors, (1387) [2021-11-17 07:21:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 7520 transitions. [2021-11-17 07:21:14,287 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 7520 transitions. Word has length 193 [2021-11-17 07:21:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:21:14,289 INFO L470 AbstractCegarLoop]: Abstraction has 4822 states and 7520 transitions. [2021-11-17 07:21:14,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:21:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 7520 transitions. [2021-11-17 07:21:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-17 07:21:14,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:21:14,318 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:21:14,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:21:14,318 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:21:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:21:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2024634561, now seen corresponding path program 1 times [2021-11-17 07:21:14,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:21:14,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718517358] [2021-11-17 07:21:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:21:14,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:21:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:21:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:21:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:21:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:21:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:21:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:21:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:21:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:21:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:21:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:21:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:21:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:21:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 07:21:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:21:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 07:21:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:21:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:21:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:21:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 07:21:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-17 07:21:15,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:21:15,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718517358] [2021-11-17 07:21:15,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718517358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:21:15,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:21:15,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:21:15,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407287413] [2021-11-17 07:21:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:21:15,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:21:15,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:21:15,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:21:15,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:21:15,382 INFO L87 Difference]: Start difference. First operand 4822 states and 7520 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:21:17,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:20,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:22,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:25,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:27,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:29,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:32,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:37,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:43,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:58,042 WARN L515 Checker$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 07:22:07,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:22:22,494 INFO L93 Difference]: Finished difference Result 7227 states and 11749 transitions. [2021-11-17 07:22:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:22:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 198 [2021-11-17 07:22:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:22:22,550 INFO L225 Difference]: With dead ends: 7227 [2021-11-17 07:22:22,550 INFO L226 Difference]: Without dead ends: 7223 [2021-11-17 07:22:22,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:22:22,556 INFO L933 BasicCegarLoop]: 3842 mSDtfsCounter, 4175 mSDsluCounter, 9172 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 1879 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4600 SdHoareTripleChecker+Valid, 13014 SdHoareTripleChecker+Invalid, 5776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1879 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:22:22,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4600 Valid, 13014 Invalid, 5776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1879 Valid, 3886 Invalid, 11 Unknown, 0 Unchecked, 65.9s Time] [2021-11-17 07:22:22,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7223 states. [2021-11-17 07:22:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7223 to 6198. [2021-11-17 07:22:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 4226 states have (on average 1.4597728348319925) internal successors, (6169), 4522 states have internal predecessors, (6169), 1747 states have call successors, (1747), 223 states have call predecessors, (1747), 224 states have return successors, (1755), 1546 states have call predecessors, (1755), 1743 states have call successors, (1755) [2021-11-17 07:22:22,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 9671 transitions. [2021-11-17 07:22:22,947 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 9671 transitions. Word has length 198 [2021-11-17 07:22:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:22:22,948 INFO L470 AbstractCegarLoop]: Abstraction has 6198 states and 9671 transitions. [2021-11-17 07:22:22,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:22:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 9671 transitions. [2021-11-17 07:22:22,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 07:22:22,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:22:22,986 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:22:22,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:22:22,987 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:22:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:22:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1536304081, now seen corresponding path program 1 times [2021-11-17 07:22:22,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:22:22,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141328073] [2021-11-17 07:22:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:22:22,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:22:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:22:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:22:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:22:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:22:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:22:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:22:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:22:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:22:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:22:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:22:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:22:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:22:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 07:22:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:22:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:22:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 07:22:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:22:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 07:22:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:22:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 07:22:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 07:22:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:22:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 07:22:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:22:23,796 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-17 07:22:23,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:22:23,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141328073] [2021-11-17 07:22:23,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141328073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:22:23,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:22:23,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:22:23,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739372182] [2021-11-17 07:22:23,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:22:23,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:22:23,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:22:23,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:22:23,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:22:23,799 INFO L87 Difference]: Start difference. First operand 6198 states and 9671 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 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 07:22:25,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:28,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:32,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:34,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:36,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:39,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:41,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:43,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:45,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:46,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:51,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:22:55,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:00,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:02,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:04,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:09,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:11,704 WARN L515 Checker$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 07:23:22,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:32,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:38,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:40,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:23:44,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:08,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:13,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:20,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:31,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:24:31,840 INFO L93 Difference]: Finished difference Result 13923 states and 22393 transitions. [2021-11-17 07:24:31,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:24:31,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 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 213 [2021-11-17 07:24:31,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:24:31,993 INFO L225 Difference]: With dead ends: 13923 [2021-11-17 07:24:31,994 INFO L226 Difference]: Without dead ends: 10223 [2021-11-17 07:24:32,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:24:32,038 INFO L933 BasicCegarLoop]: 5654 mSDtfsCounter, 5103 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 6608 mSolverCounterSat, 4546 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 8205 SdHoareTripleChecker+Invalid, 11174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4546 IncrementalHoareTripleChecker+Valid, 6608 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:24:32,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5590 Valid, 8205 Invalid, 11174 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4546 Valid, 6608 Invalid, 20 Unknown, 0 Unchecked, 126.4s Time] [2021-11-17 07:24:32,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10223 states. [2021-11-17 07:24:32,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10223 to 8685. [2021-11-17 07:24:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8685 states, 5929 states have (on average 1.4582560296846012) internal successors, (8646), 6335 states have internal predecessors, (8646), 2439 states have call successors, (2439), 315 states have call predecessors, (2439), 316 states have return successors, (2453), 2165 states have call predecessors, (2453), 2435 states have call successors, (2453) [2021-11-17 07:24:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8685 states to 8685 states and 13538 transitions. [2021-11-17 07:24:32,591 INFO L78 Accepts]: Start accepts. Automaton has 8685 states and 13538 transitions. Word has length 213 [2021-11-17 07:24:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:24:32,592 INFO L470 AbstractCegarLoop]: Abstraction has 8685 states and 13538 transitions. [2021-11-17 07:24:32,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 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 07:24:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8685 states and 13538 transitions. [2021-11-17 07:24:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 07:24:32,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:24:32,649 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:24:32,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:24:32,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 07:24:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:24:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1157355170, now seen corresponding path program 1 times [2021-11-17 07:24:32,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:24:32,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393407246] [2021-11-17 07:24:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:24:32,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:24:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:24:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:24:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:24:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:24:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:24:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:24:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:24:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:24:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:24:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 07:24:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 07:24:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 07:24:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 07:24:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 07:24:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:24:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 07:24:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 07:24:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 07:24:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:24:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 07:24:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 07:24:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:24:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-17 07:24:33,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:24:33,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393407246] [2021-11-17 07:24:33,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393407246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:24:33,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:24:33,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:24:33,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758573415] [2021-11-17 07:24:33,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:24:33,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:24:33,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:24:33,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:24:33,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:24:33,642 INFO L87 Difference]: Start difference. First operand 8685 states and 13538 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:24:35,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:38,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:40,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:43,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:45,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:47,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:48,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:51,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:52,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:24:57,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:25:03,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:25:18,919 WARN L515 Checker$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 07:25:28,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:25:44,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:25:44,549 INFO L93 Difference]: Finished difference Result 10197 states and 16578 transitions. [2021-11-17 07:25:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:25:44,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 203 [2021-11-17 07:25:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:25:44,551 INFO L225 Difference]: With dead ends: 10197 [2021-11-17 07:25:44,551 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 07:25:44,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:25:44,629 INFO L933 BasicCegarLoop]: 3787 mSDtfsCounter, 3981 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 3884 mSolverCounterSat, 1894 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4409 SdHoareTripleChecker+Valid, 12623 SdHoareTripleChecker+Invalid, 5787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1894 IncrementalHoareTripleChecker+Valid, 3884 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:25:44,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4409 Valid, 12623 Invalid, 5787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1894 Valid, 3884 Invalid, 9 Unknown, 0 Unchecked, 69.5s Time] [2021-11-17 07:25:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 07:25:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 07:25:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 07:25:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 07:25:44,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2021-11-17 07:25:44,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:25:44,633 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 07:25:44,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 07:25:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 07:25:44,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 07:25:44,637 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 07:25:44,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:25:44,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15