./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-net-can-mcp251x.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-net-can-mcp251x.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 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:16:41,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:16:41,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:16:41,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:16:41,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:16:41,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:16:41,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:16:41,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:16:41,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:16:41,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:16:41,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:16:41,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:16:41,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:16:41,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:16:41,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:16:41,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:16:41,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:16:41,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:16:41,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:16:41,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:16:41,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:16:41,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:16:41,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:16:41,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:16:41,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:16:41,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:16:41,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:16:41,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:16:41,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:16:41,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:16:41,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:16:41,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:16:41,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:16:41,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:16:41,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:16:41,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:16:41,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:16:41,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:16:41,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:16:41,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:16:41,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:16:41,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:16:41,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:16:41,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:16:41,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:16:41,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:16:41,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:16:41,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:16:41,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:16:41,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:16:41,818 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:16:41,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:16:41,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:16:41,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:16:41,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:16:41,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:16:41,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:16:41,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:16:41,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:16:41,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:16:41,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:16:41,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:16:41,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:16:41,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:16:41,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:16:41,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:16:41,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:16:41,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:16:41,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:16:41,821 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:16:41,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:16:41,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:16:41,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:16:41,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2021-11-17 07:16:41,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:16:41,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:16:41,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:16:41,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:16:41,988 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:16:41,989 INFO L432 ainManager$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-net-can-mcp251x.cil.i [2021-11-17 07:16:42,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2811a28/89fe59ac43dc433ea7af2003aa02f3c9/FLAG0308d24a8 [2021-11-17 07:16:42,530 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:16:42,531 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-net-can-mcp251x.cil.i [2021-11-17 07:16:42,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2811a28/89fe59ac43dc433ea7af2003aa02f3c9/FLAG0308d24a8 [2021-11-17 07:16:42,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2811a28/89fe59ac43dc433ea7af2003aa02f3c9 [2021-11-17 07:16:42,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:16:42,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:16:42,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:16:42,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:16:42,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:16:42,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:16:42" (1/1) ... [2021-11-17 07:16:42,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58059311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:42, skipping insertion in model container [2021-11-17 07:16:42,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:16:42" (1/1) ... [2021-11-17 07:16:42,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:16:42,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:16:44,145 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-net-can-mcp251x.cil.i[278128,278141] [2021-11-17 07:16:44,147 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-net-can-mcp251x.cil.i[278294,278307] [2021-11-17 07:16:44,148 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-net-can-mcp251x.cil.i[278458,278471] [2021-11-17 07:16:44,148 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-net-can-mcp251x.cil.i[278623,278636] [2021-11-17 07:16:44,169 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:16:44,207 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:16:44,444 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-net-can-mcp251x.cil.i[278128,278141] [2021-11-17 07:16:44,445 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-net-can-mcp251x.cil.i[278294,278307] [2021-11-17 07:16:44,445 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-net-can-mcp251x.cil.i[278458,278471] [2021-11-17 07:16:44,446 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-net-can-mcp251x.cil.i[278623,278636] [2021-11-17 07:16:44,449 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:16:44,551 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:16:44,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44 WrapperNode [2021-11-17 07:16:44,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:16:44,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:16:44,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:16:44,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:16:44,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,729 INFO L137 Inliner]: procedures = 340, calls = 1497, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4021 [2021-11-17 07:16:44,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:16:44,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:16:44,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:16:44,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:16:44,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:16:44,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:16:44,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:16:44,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:16:44,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (1/1) ... [2021-11-17 07:16:44,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:16:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:16:44,884 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 07:16:44,895 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 07:16:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:16:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:16:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:16:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:16:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:16:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:16:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 07:16:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 07:16:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-11-17 07:16:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-11-17 07:16:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:16:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:16:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-11-17 07:16:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-11-17 07:16:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 07:16:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 07:16:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-11-17 07:16:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-11-17 07:16:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-11-17 07:16:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-11-17 07:16:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-11-17 07:16:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-11-17 07:16:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 07:16:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 07:16:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-11-17 07:16:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-11-17 07:16:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:16:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 07:16:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 07:16:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:16:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:16:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:16:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-11-17 07:16:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-11-17 07:16:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-11-17 07:16:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-11-17 07:16:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:16:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:16:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:16:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:16:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-11-17 07:16:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-11-17 07:16:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-11-17 07:16:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-11-17 07:16:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:16:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:16:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-11-17 07:16:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-11-17 07:16:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 07:16:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 07:16:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 07:16:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 07:16:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 07:16:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 07:16:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-11-17 07:16:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-11-17 07:16:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:16:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:16:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 07:16:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 07:16:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-11-17 07:16:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-11-17 07:16:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-17 07:16:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-17 07:16:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 07:16:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 07:16:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-17 07:16:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-17 07:16:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-17 07:16:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-17 07:16:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:16:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-11-17 07:16:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-11-17 07:16:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 07:16:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 07:16:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-11-17 07:16:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-11-17 07:16:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:16:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:16:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:16:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-11-17 07:16:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-11-17 07:16:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-11-17 07:16:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-11-17 07:16:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 07:16:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 07:16:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:16:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:16:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:16:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-11-17 07:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-11-17 07:16:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-11-17 07:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-11-17 07:16:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 07:16:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 07:16:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:16:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-11-17 07:16:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-11-17 07:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:16:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-11-17 07:16:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-11-17 07:16:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-11-17 07:16:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-11-17 07:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-11-17 07:16:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-11-17 07:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-11-17 07:16:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-11-17 07:16:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-11-17 07:16:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-11-17 07:16:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:16:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:16:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-11-17 07:16:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-11-17 07:16:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:16:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 07:16:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 07:16:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:16:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:16:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 07:16:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 07:16:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 07:16:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 07:16:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-11-17 07:16:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-11-17 07:16:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:16:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:16:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:16:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 07:16:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 07:16:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:16:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-11-17 07:16:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-11-17 07:16:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:16:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 07:16:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:16:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:16:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-11-17 07:16:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-11-17 07:16:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 07:16:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 07:16:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-11-17 07:16:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-11-17 07:16:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:16:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:16:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-17 07:16:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-17 07:16:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 07:16:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 07:16:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 07:16:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 07:16:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-11-17 07:16:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-11-17 07:16:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-11-17 07:16:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-11-17 07:16:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:16:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-11-17 07:16:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-11-17 07:16:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-11-17 07:16:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-11-17 07:16:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-17 07:16:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-17 07:16:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:16:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:16:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:16:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:16:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 07:16:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 07:16:45,465 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:16:45,468 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:16:45,764 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:17:22,184 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:17:23,051 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:17:23,067 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:17:23,067 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 07:17:23,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:17:23 BoogieIcfgContainer [2021-11-17 07:17:23,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:17:23,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:17:23,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:17:23,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:17:23,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:16:42" (1/3) ... [2021-11-17 07:17:23,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@837f637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:17:23, skipping insertion in model container [2021-11-17 07:17:23,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:16:44" (2/3) ... [2021-11-17 07:17:23,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@837f637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:17:23, skipping insertion in model container [2021-11-17 07:17:23,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:17:23" (3/3) ... [2021-11-17 07:17:23,077 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-11-17 07:17:23,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:17:23,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:17:23,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:17:23,131 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 07:17:23,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:17:23,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2021-11-17 07:17:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-17 07:17:23,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:17:23,191 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:17:23,191 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:17:23,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:17:23,195 INFO L85 PathProgramCache]: Analyzing trace with hash -809802598, now seen corresponding path program 1 times [2021-11-17 07:17:23,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:17:23,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514404213] [2021-11-17 07:17:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:17:23,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:17:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:17:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:17:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:17:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:17:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:17:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:17:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:17:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:17:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:17:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:17:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:17:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:17:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:23,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 07:17:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 07:17:24,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:17:24,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514404213] [2021-11-17 07:17:24,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514404213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:17:24,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:17:24,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:17:24,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057125447] [2021-11-17 07:17:24,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:17:24,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:17:24,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:17:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:17:24,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:17:24,038 INFO L87 Difference]: Start difference. First operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:17:26,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:28,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:17:36,529 INFO L93 Difference]: Finished difference Result 4247 states and 6075 transitions. [2021-11-17 07:17:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:17:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2021-11-17 07:17:36,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:17:36,572 INFO L225 Difference]: With dead ends: 4247 [2021-11-17 07:17:36,573 INFO L226 Difference]: Without dead ends: 2786 [2021-11-17 07:17:36,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:17:36,591 INFO L933 BasicCegarLoop]: 2224 mSDtfsCounter, 2267 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 927 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:17:36,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 4893 Invalid, 1942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [927 Valid, 1013 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2021-11-17 07:17:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-11-17 07:17:36,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2723. [2021-11-17 07:17:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 1926 states have (on average 1.2725856697819315) internal successors, (2451), 1973 states have internal predecessors, (2451), 645 states have call successors, (645), 149 states have call predecessors, (645), 149 states have return successors, (735), 623 states have call predecessors, (735), 641 states have call successors, (735) [2021-11-17 07:17:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 3831 transitions. [2021-11-17 07:17:36,802 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 3831 transitions. Word has length 149 [2021-11-17 07:17:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:17:36,805 INFO L470 AbstractCegarLoop]: Abstraction has 2723 states and 3831 transitions. [2021-11-17 07:17:36,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:17:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 3831 transitions. [2021-11-17 07:17:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 07:17:36,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:17:36,814 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:17:36,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:17:36,815 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_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:17:36,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:17:36,815 INFO L85 PathProgramCache]: Analyzing trace with hash -692997161, now seen corresponding path program 1 times [2021-11-17 07:17:36,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:17:36,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915900215] [2021-11-17 07:17:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:17:36,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:17:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:17:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:17:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:17:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:17:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:17:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:17:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:17:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:17:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:17:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:17:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:17:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:17:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 07:17:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 07:17:37,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:17:37,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915900215] [2021-11-17 07:17:37,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915900215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:17:37,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:17:37,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:17:37,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760671141] [2021-11-17 07:17:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:17:37,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:17:37,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:17:37,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:17:37,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:17:37,358 INFO L87 Difference]: Start difference. First operand 2723 states and 3831 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:17:39,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:41,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:44,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:48,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:17:51,244 INFO L93 Difference]: Finished difference Result 8064 states and 11381 transitions. [2021-11-17 07:17:51,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:17:51,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2021-11-17 07:17:51,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:17:51,274 INFO L225 Difference]: With dead ends: 8064 [2021-11-17 07:17:51,274 INFO L226 Difference]: Without dead ends: 5368 [2021-11-17 07:17:51,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:17:51,288 INFO L933 BasicCegarLoop]: 2178 mSDtfsCounter, 2323 mSDsluCounter, 2615 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 893 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:17:51,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2576 Valid, 4793 Invalid, 1928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [893 Valid, 1033 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2021-11-17 07:17:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5368 states. [2021-11-17 07:17:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5368 to 5276. [2021-11-17 07:17:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5276 states, 3744 states have (on average 1.2732371794871795) internal successors, (4767), 3830 states have internal predecessors, (4767), 1234 states have call successors, (1234), 294 states have call predecessors, (1234), 295 states have return successors, (1418), 1197 states have call predecessors, (1418), 1230 states have call successors, (1418) [2021-11-17 07:17:51,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 7419 transitions. [2021-11-17 07:17:51,478 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 7419 transitions. Word has length 151 [2021-11-17 07:17:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:17:51,481 INFO L470 AbstractCegarLoop]: Abstraction has 5276 states and 7419 transitions. [2021-11-17 07:17:51,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 07:17:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 7419 transitions. [2021-11-17 07:17:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 07:17:51,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:17:51,484 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:17:51,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:17:51,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:17:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:17:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -725158502, now seen corresponding path program 1 times [2021-11-17 07:17:51,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:17:51,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717318518] [2021-11-17 07:17:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:17:51,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:17:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:17:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:17:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:17:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:17:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:17:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:17:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:17:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:17:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:17:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:17:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:17:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:17:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:17:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:17:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 07:17:51,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:17:51,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717318518] [2021-11-17 07:17:51,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717318518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:17:51,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:17:51,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:17:51,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680356263] [2021-11-17 07:17:51,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:17:51,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:17:51,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:17:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:17:51,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:17:51,849 INFO L87 Difference]: Start difference. First operand 5276 states and 7419 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:17:53,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:17:56,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:04,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:18:04,528 INFO L93 Difference]: Finished difference Result 15278 states and 21428 transitions. [2021-11-17 07:18:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:18:04,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2021-11-17 07:18:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:18:04,576 INFO L225 Difference]: With dead ends: 15278 [2021-11-17 07:18:04,577 INFO L226 Difference]: Without dead ends: 10029 [2021-11-17 07:18:04,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:18:04,603 INFO L933 BasicCegarLoop]: 2177 mSDtfsCounter, 2126 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 914 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:18:04,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2359 Valid, 4747 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 1126 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2021-11-17 07:18:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10029 states. [2021-11-17 07:18:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10029 to 9828. [2021-11-17 07:18:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9828 states, 6918 states have (on average 1.2643827695865857) internal successors, (8747), 7096 states have internal predecessors, (8747), 2322 states have call successors, (2322), 582 states have call predecessors, (2322), 585 states have return successors, (2554), 2241 states have call predecessors, (2554), 2318 states have call successors, (2554) [2021-11-17 07:18:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9828 states to 9828 states and 13623 transitions. [2021-11-17 07:18:04,914 INFO L78 Accepts]: Start accepts. Automaton has 9828 states and 13623 transitions. Word has length 151 [2021-11-17 07:18:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:18:04,915 INFO L470 AbstractCegarLoop]: Abstraction has 9828 states and 13623 transitions. [2021-11-17 07:18:04,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:18:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9828 states and 13623 transitions. [2021-11-17 07:18:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-17 07:18:04,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:18:04,917 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:18:04,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:18:04,918 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:18:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:18:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash -500577410, now seen corresponding path program 1 times [2021-11-17 07:18:04,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:18:04,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397949060] [2021-11-17 07:18:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:18:04,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:18:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:18:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:18:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:18:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:18:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:18:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:18:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:18:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:18:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:18:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:18:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:18:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:18:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 07:18:05,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:18:05,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397949060] [2021-11-17 07:18:05,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397949060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:18:05,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:18:05,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:18:05,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975920505] [2021-11-17 07:18:05,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:18:05,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:18:05,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:18:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:18:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:18:05,323 INFO L87 Difference]: Start difference. First operand 9828 states and 13623 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:18:07,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:09,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:18:18,237 INFO L93 Difference]: Finished difference Result 23932 states and 33114 transitions. [2021-11-17 07:18:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:18:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 152 [2021-11-17 07:18:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:18:18,307 INFO L225 Difference]: With dead ends: 23932 [2021-11-17 07:18:18,307 INFO L226 Difference]: Without dead ends: 14131 [2021-11-17 07:18:18,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:18:18,344 INFO L933 BasicCegarLoop]: 2187 mSDtfsCounter, 2256 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 912 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 4813 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:18:18,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 4813 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1060 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2021-11-17 07:18:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2021-11-17 07:18:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 13894. [2021-11-17 07:18:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13894 states, 9762 states have (on average 1.2551731202622414) internal successors, (12253), 10022 states have internal predecessors, (12253), 3258 states have call successors, (3258), 866 states have call predecessors, (3258), 871 states have return successors, (3568), 3127 states have call predecessors, (3568), 3254 states have call successors, (3568) [2021-11-17 07:18:18,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 19079 transitions. [2021-11-17 07:18:18,854 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 19079 transitions. Word has length 152 [2021-11-17 07:18:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:18:18,854 INFO L470 AbstractCegarLoop]: Abstraction has 13894 states and 19079 transitions. [2021-11-17 07:18:18,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 07:18:18,855 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 19079 transitions. [2021-11-17 07:18:18,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-17 07:18:18,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:18:18,856 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:18:18,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:18:18,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:18:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:18:18,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1971282291, now seen corresponding path program 1 times [2021-11-17 07:18:18,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:18:18,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144715293] [2021-11-17 07:18:18,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:18:18,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:18:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:18:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:18:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:18:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:18:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:18:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:18:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:18:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:18:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:18:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:18:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:18:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:18:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 07:18:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 07:18:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:19,405 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 07:18:19,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:18:19,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144715293] [2021-11-17 07:18:19,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144715293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:18:19,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:18:19,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:18:19,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590268177] [2021-11-17 07:18:19,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:18:19,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:18:19,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:18:19,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:18:19,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:18:19,408 INFO L87 Difference]: Start difference. First operand 13894 states and 19079 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:18:21,446 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 07:18:23,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:26,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:18:49,129 INFO L93 Difference]: Finished difference Result 55327 states and 76697 transitions. [2021-11-17 07:18:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:18:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 160 [2021-11-17 07:18:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:18:49,441 INFO L225 Difference]: With dead ends: 55327 [2021-11-17 07:18:49,441 INFO L226 Difference]: Without dead ends: 41460 [2021-11-17 07:18:49,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 07:18:49,494 INFO L933 BasicCegarLoop]: 2501 mSDtfsCounter, 6146 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 2251 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6680 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 5865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2251 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:18:49,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6680 Valid, 8187 Invalid, 5865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2251 Valid, 3612 Invalid, 2 Unknown, 0 Unchecked, 28.3s Time] [2021-11-17 07:18:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41460 states. [2021-11-17 07:18:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41460 to 40418. [2021-11-17 07:18:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40418 states, 28354 states have (on average 1.2558721873457008) internal successors, (35609), 29202 states have internal predecessors, (35609), 9498 states have call successors, (9498), 2570 states have call predecessors, (9498), 2563 states have return successors, (10956), 9011 states have call predecessors, (10956), 9494 states have call successors, (10956) [2021-11-17 07:18:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40418 states to 40418 states and 56063 transitions. [2021-11-17 07:18:50,787 INFO L78 Accepts]: Start accepts. Automaton has 40418 states and 56063 transitions. Word has length 160 [2021-11-17 07:18:50,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:18:50,788 INFO L470 AbstractCegarLoop]: Abstraction has 40418 states and 56063 transitions. [2021-11-17 07:18:50,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:18:50,788 INFO L276 IsEmpty]: Start isEmpty. Operand 40418 states and 56063 transitions. [2021-11-17 07:18:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-17 07:18:50,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:18:50,793 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 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] [2021-11-17 07:18:50,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:18:50,793 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:18:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:18:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash 421707479, now seen corresponding path program 1 times [2021-11-17 07:18:50,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:18:50,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456933465] [2021-11-17 07:18:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:18:50,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:18:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:18:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:18:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:18:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:18:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:18:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:18:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:18:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:18:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:18:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:18:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:18:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:18:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:18:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:18:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 07:18:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:18:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-11-17 07:18:51,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:18:51,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456933465] [2021-11-17 07:18:51,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456933465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:18:51,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:18:51,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:18:51,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389646687] [2021-11-17 07:18:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:18:51,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:18:51,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:18:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:18:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:18:51,139 INFO L87 Difference]: Start difference. First operand 40418 states and 56063 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:18:53,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:18:55,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:19:04,986 INFO L93 Difference]: Finished difference Result 98591 states and 136604 transitions. [2021-11-17 07:19:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:19:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 176 [2021-11-17 07:19:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:19:05,226 INFO L225 Difference]: With dead ends: 98591 [2021-11-17 07:19:05,227 INFO L226 Difference]: Without dead ends: 58200 [2021-11-17 07:19:05,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:19:05,333 INFO L933 BasicCegarLoop]: 2561 mSDtfsCounter, 2246 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 840 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:19:05,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2497 Valid, 5441 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1059 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2021-11-17 07:19:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58200 states. [2021-11-17 07:19:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58200 to 57181. [2021-11-17 07:19:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57181 states, 40317 states have (on average 1.252449338988516) internal successors, (50495), 41576 states have internal predecessors, (50495), 13188 states have call successors, (13188), 3693 states have call predecessors, (13188), 3673 states have return successors, (15014), 12452 states have call predecessors, (15014), 13184 states have call successors, (15014) [2021-11-17 07:19:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57181 states to 57181 states and 78697 transitions. [2021-11-17 07:19:07,175 INFO L78 Accepts]: Start accepts. Automaton has 57181 states and 78697 transitions. Word has length 176 [2021-11-17 07:19:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:19:07,176 INFO L470 AbstractCegarLoop]: Abstraction has 57181 states and 78697 transitions. [2021-11-17 07:19:07,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 07:19:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 57181 states and 78697 transitions. [2021-11-17 07:19:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 07:19:07,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:19:07,179 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-11-17 07:19:07,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:19:07,179 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:19:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:19:07,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2111332940, now seen corresponding path program 1 times [2021-11-17 07:19:07,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:19:07,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408726349] [2021-11-17 07:19:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:19:07,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:19:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:19:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:19:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:19:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:19:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:19:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:19:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:19:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:19:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:19:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:19:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:19:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:19:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:19:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:19:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:19:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:19:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:19:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:19:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:19:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-17 07:19:07,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:19:07,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408726349] [2021-11-17 07:19:07,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408726349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:19:07,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:19:07,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:19:07,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106399075] [2021-11-17 07:19:07,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:19:07,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:19:07,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:19:07,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:19:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:19:07,555 INFO L87 Difference]: Start difference. First operand 57181 states and 78697 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 07:19:09,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:11,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:17,851 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 07:19:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:19:25,234 INFO L93 Difference]: Finished difference Result 162374 states and 224641 transitions. [2021-11-17 07:19:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:19:25,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2021-11-17 07:19:25,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:19:25,726 INFO L225 Difference]: With dead ends: 162374 [2021-11-17 07:19:25,726 INFO L226 Difference]: Without dead ends: 109018 [2021-11-17 07:19:25,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:19:25,870 INFO L933 BasicCegarLoop]: 3693 mSDtfsCounter, 1953 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 577 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:19:25,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2201 Valid, 7199 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 1066 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2021-11-17 07:19:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109018 states. [2021-11-17 07:19:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109018 to 107160. [2021-11-17 07:19:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107160 states, 75644 states have (on average 1.252524985458199) internal successors, (94746), 77860 states have internal predecessors, (94746), 24628 states have call successors, (24628), 6918 states have call predecessors, (24628), 6885 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-11-17 07:19:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107160 states to 107160 states and 147652 transitions. [2021-11-17 07:19:29,902 INFO L78 Accepts]: Start accepts. Automaton has 107160 states and 147652 transitions. Word has length 209 [2021-11-17 07:19:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:19:29,903 INFO L470 AbstractCegarLoop]: Abstraction has 107160 states and 147652 transitions. [2021-11-17 07:19:29,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 07:19:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 107160 states and 147652 transitions. [2021-11-17 07:19:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 07:19:29,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:19:29,907 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-11-17 07:19:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:19:29,907 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:19:29,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:19:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash -188104906, now seen corresponding path program 1 times [2021-11-17 07:19:29,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:19:29,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253730435] [2021-11-17 07:19:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:19:29,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:19:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:19:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:19:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:19:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:19:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:19:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:19:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:19:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:19:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:19:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:19:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:19:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:19:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:19:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:19:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:19:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:19:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:19:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:19:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:19:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-17 07:19:30,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:19:30,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253730435] [2021-11-17 07:19:30,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253730435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:19:30,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:19:30,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:19:30,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554244304] [2021-11-17 07:19:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:19:30,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:19:30,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:19:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:19:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:19:30,505 INFO L87 Difference]: Start difference. First operand 107160 states and 147652 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 07:19:32,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:39,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:19:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:19:43,706 INFO L93 Difference]: Finished difference Result 109020 states and 150584 transitions. [2021-11-17 07:19:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:19:43,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 209 [2021-11-17 07:19:43,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:19:44,203 INFO L225 Difference]: With dead ends: 109020 [2021-11-17 07:19:44,203 INFO L226 Difference]: Without dead ends: 109018 [2021-11-17 07:19:44,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:19:44,270 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 2038 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 582 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 6152 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:19:44,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2229 Valid, 6152 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 07:19:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109018 states. [2021-11-17 07:19:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109018 to 107164. [2021-11-17 07:19:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107164 states, 75647 states have (on average 1.2525149708514547) internal successors, (94749), 77863 states have internal predecessors, (94749), 24628 states have call successors, (24628), 6919 states have call predecessors, (24628), 6886 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-11-17 07:19:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107164 states to 107164 states and 147655 transitions. [2021-11-17 07:19:48,080 INFO L78 Accepts]: Start accepts. Automaton has 107164 states and 147655 transitions. Word has length 209 [2021-11-17 07:19:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:19:48,080 INFO L470 AbstractCegarLoop]: Abstraction has 107164 states and 147655 transitions. [2021-11-17 07:19:48,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 07:19:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 107164 states and 147655 transitions. [2021-11-17 07:19:48,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 07:19:48,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:19:48,083 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-11-17 07:19:48,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:19:48,083 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:19:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:19:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2046337942, now seen corresponding path program 1 times [2021-11-17 07:19:48,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:19:48,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54445493] [2021-11-17 07:19:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:19:48,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:19:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:19:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:19:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:19:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:19:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:19:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:19:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:19:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:19:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:19:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:19:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:19:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:19:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:19:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:19:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:19:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:19:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:19:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:19:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:19:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:19:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 07:19:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:19:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-17 07:19:48,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:19:48,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54445493] [2021-11-17 07:19:48,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54445493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:19:48,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:19:48,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:19:48,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088787533] [2021-11-17 07:19:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:19:48,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:19:48,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:19:48,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:19:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:19:48,578 INFO L87 Difference]: Start difference. First operand 107164 states and 147655 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 07:19:50,617 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 07:20:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:20:00,789 INFO L93 Difference]: Finished difference Result 109024 states and 150587 transitions. [2021-11-17 07:20:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:20:00,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 214 [2021-11-17 07:20:00,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:20:01,249 INFO L225 Difference]: With dead ends: 109024 [2021-11-17 07:20:01,250 INFO L226 Difference]: Without dead ends: 109022 [2021-11-17 07:20:01,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:20:01,303 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 2030 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 581 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 6155 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-17 07:20:01,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2221 Valid, 6155 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-17 07:20:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109022 states. [2021-11-17 07:20:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109022 to 107168. [2021-11-17 07:20:04,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107168 states, 75650 states have (on average 1.2525049570389954) internal successors, (94752), 77866 states have internal predecessors, (94752), 24628 states have call successors, (24628), 6920 states have call predecessors, (24628), 6887 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-11-17 07:20:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107168 states to 107168 states and 147658 transitions. [2021-11-17 07:20:05,073 INFO L78 Accepts]: Start accepts. Automaton has 107168 states and 147658 transitions. Word has length 214 [2021-11-17 07:20:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:20:05,074 INFO L470 AbstractCegarLoop]: Abstraction has 107168 states and 147658 transitions. [2021-11-17 07:20:05,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 07:20:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 107168 states and 147658 transitions. [2021-11-17 07:20:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-17 07:20:05,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:20:05,077 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-11-17 07:20:05,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:20:05,077 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:20:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:20:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1956444022, now seen corresponding path program 1 times [2021-11-17 07:20:05,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:20:05,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625655838] [2021-11-17 07:20:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:20:05,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:20:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:20:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:20:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:20:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:20:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:20:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:20:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:20:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:20:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:20:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:20:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:20:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:20:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:20:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:20:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:20:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:20:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:20:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:20:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:20:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 07:20:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 07:20:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-17 07:20:05,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:20:05,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625655838] [2021-11-17 07:20:05,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625655838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:20:05,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:20:05,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:20:05,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163873496] [2021-11-17 07:20:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:20:05,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:20:05,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:20:05,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:20:05,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:20:05,564 INFO L87 Difference]: Start difference. First operand 107168 states and 147658 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 07:20:07,600 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 07:20:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:20:22,819 INFO L93 Difference]: Finished difference Result 121796 states and 164549 transitions. [2021-11-17 07:20:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:20:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2021-11-17 07:20:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:20:23,270 INFO L225 Difference]: With dead ends: 121796 [2021-11-17 07:20:23,270 INFO L226 Difference]: Without dead ends: 121792 [2021-11-17 07:20:23,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:20:23,327 INFO L933 BasicCegarLoop]: 2004 mSDtfsCounter, 1639 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:20:23,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 6906 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1334 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2021-11-17 07:20:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121792 states. [2021-11-17 07:20:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121792 to 119764. [2021-11-17 07:20:26,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119764 states, 83659 states have (on average 1.241552014726449) internal successors, (103867), 85964 states have internal predecessors, (103867), 27007 states have call successors, (27007), 9171 states have call predecessors, (27007), 9095 states have return successors, (30657), 25759 states have call predecessors, (30657), 27003 states have call successors, (30657) [2021-11-17 07:20:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119764 states to 119764 states and 161531 transitions. [2021-11-17 07:20:27,264 INFO L78 Accepts]: Start accepts. Automaton has 119764 states and 161531 transitions. Word has length 219 [2021-11-17 07:20:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:20:27,264 INFO L470 AbstractCegarLoop]: Abstraction has 119764 states and 161531 transitions. [2021-11-17 07:20:27,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 07:20:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 119764 states and 161531 transitions. [2021-11-17 07:20:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-17 07:20:27,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:20:27,268 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1] [2021-11-17 07:20:27,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 07:20:27,268 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:20:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:20:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1353338091, now seen corresponding path program 1 times [2021-11-17 07:20:27,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:20:27,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455907463] [2021-11-17 07:20:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:20:27,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:20:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:20:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:20:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:20:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:20:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:20:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:20:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:20:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:20:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:20:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:20:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:20:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:20:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:20:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:20:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:20:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:20:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:20:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:20:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:20:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 07:20:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 07:20:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:20:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 07:20:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 07:20:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 07:20:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:20:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-17 07:20:27,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:20:27,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455907463] [2021-11-17 07:20:27,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455907463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:20:27,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:20:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 07:20:27,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217197256] [2021-11-17 07:20:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:20:27,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 07:20:27,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:20:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 07:20:27,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:20:27,676 INFO L87 Difference]: Start difference. First operand 119764 states and 161531 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:20:29,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:32,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:34,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:48,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:20:49,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:21:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:21:05,484 INFO L93 Difference]: Finished difference Result 294472 states and 398245 transitions. [2021-11-17 07:21:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:21:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2021-11-17 07:21:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:21:06,476 INFO L225 Difference]: With dead ends: 294472 [2021-11-17 07:21:06,476 INFO L226 Difference]: Without dead ends: 178927 [2021-11-17 07:21:06,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 07:21:06,820 INFO L933 BasicCegarLoop]: 3412 mSDtfsCounter, 2452 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 1634 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 6639 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1634 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:21:06,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 6639 Invalid, 4645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1634 Valid, 3008 Invalid, 3 Unknown, 0 Unchecked, 31.9s Time] [2021-11-17 07:21:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178927 states. [2021-11-17 07:21:12,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178927 to 175891. [2021-11-17 07:21:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175891 states, 122912 states have (on average 1.2413759437646446) internal successors, (152580), 126218 states have internal predecessors, (152580), 39599 states have call successors, (39599), 13487 states have call predecessors, (39599), 13377 states have return successors, (45073), 37860 states have call predecessors, (45073), 39595 states have call successors, (45073) [2021-11-17 07:21:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175891 states to 175891 states and 237252 transitions. [2021-11-17 07:21:13,991 INFO L78 Accepts]: Start accepts. Automaton has 175891 states and 237252 transitions. Word has length 235 [2021-11-17 07:21:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:21:13,992 INFO L470 AbstractCegarLoop]: Abstraction has 175891 states and 237252 transitions. [2021-11-17 07:21:13,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 07:21:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 175891 states and 237252 transitions. [2021-11-17 07:21:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 07:21:13,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:21:13,996 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-11-17 07:21:13,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 07:21:13,997 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:21:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:21:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash -286819414, now seen corresponding path program 1 times [2021-11-17 07:21:13,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:21:13,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205642096] [2021-11-17 07:21:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:21:13,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:21:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:21:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:21:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:21:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:21:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:21:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:21:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:21:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:21:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:21:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:21:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:21:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 07:21:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 07:21:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 07:21:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 07:21:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 07:21:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:21:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 07:21:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 07:21:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 07:21:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 07:21:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 07:21:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 07:21:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:21:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-11-17 07:21:14,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:21:14,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205642096] [2021-11-17 07:21:14,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205642096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:21:14,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:21:14,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:21:14,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877198764] [2021-11-17 07:21:14,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:21:14,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:21:14,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:21:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:21:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:21:14,530 INFO L87 Difference]: Start difference. First operand 175891 states and 237252 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 07:21:16,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []