./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-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-ethernet-via-via-rhine.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 c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 10:34:24,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 10:34:24,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 10:34:24,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 10:34:24,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 10:34:24,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 10:34:24,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 10:34:24,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 10:34:24,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 10:34:24,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 10:34:24,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 10:34:24,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 10:34:24,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 10:34:24,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 10:34:24,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 10:34:24,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 10:34:24,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 10:34:24,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 10:34:24,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 10:34:24,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 10:34:24,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 10:34:24,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 10:34:24,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 10:34:24,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 10:34:24,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 10:34:24,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 10:34:24,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 10:34:24,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 10:34:24,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 10:34:24,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 10:34:24,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 10:34:24,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 10:34:24,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 10:34:24,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 10:34:24,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 10:34:24,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 10:34:24,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 10:34:24,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 10:34:24,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 10:34:24,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 10:34:24,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 10:34:24,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 10:34:24,861 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 10:34:24,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 10:34:24,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 10:34:24,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 10:34:24,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 10:34:24,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 10:34:24,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 10:34:24,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 10:34:24,865 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 10:34:24,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 10:34:24,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 10:34:24,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 10:34:24,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 10:34:24,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 10:34:24,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 10:34:24,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 10:34:24,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:34:24,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 10:34:24,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 10:34:24,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 10:34:24,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 10:34:24,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 10:34:24,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 10:34:24,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 10:34:24,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 10:34:24,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 10:34:24,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2021-12-18 10:34:25,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 10:34:25,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 10:34:25,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 10:34:25,104 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 10:34:25,105 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 10:34:25,106 INFO L432 ainManager$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-ethernet-via-via-rhine.cil.i [2021-12-18 10:34:25,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04f9dfc3/a92ad83767b04d71b5b1217be6007a80/FLAG1a7d5c236 [2021-12-18 10:34:25,913 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 10:34:25,913 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-ethernet-via-via-rhine.cil.i [2021-12-18 10:34:25,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04f9dfc3/a92ad83767b04d71b5b1217be6007a80/FLAG1a7d5c236 [2021-12-18 10:34:26,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04f9dfc3/a92ad83767b04d71b5b1217be6007a80 [2021-12-18 10:34:26,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 10:34:26,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 10:34:26,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 10:34:26,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 10:34:26,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 10:34:26,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:34:26" (1/1) ... [2021-12-18 10:34:26,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3518f18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:26, skipping insertion in model container [2021-12-18 10:34:26,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:34:26" (1/1) ... [2021-12-18 10:34:26,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 10:34:26,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 10:34:28,819 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-ethernet-via-via-rhine.cil.i[380944,380957] [2021-12-18 10:34:28,822 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-ethernet-via-via-rhine.cil.i[381110,381123] [2021-12-18 10:34:28,823 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-ethernet-via-via-rhine.cil.i[381274,381287] [2021-12-18 10:34:28,823 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-ethernet-via-via-rhine.cil.i[381439,381452] [2021-12-18 10:34:28,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:34:28,932 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 10:34:29,300 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-ethernet-via-via-rhine.cil.i[380944,380957] [2021-12-18 10:34:29,300 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-ethernet-via-via-rhine.cil.i[381110,381123] [2021-12-18 10:34:29,301 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-ethernet-via-via-rhine.cil.i[381274,381287] [2021-12-18 10:34:29,301 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-ethernet-via-via-rhine.cil.i[381439,381452] [2021-12-18 10:34:29,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 10:34:29,514 INFO L208 MainTranslator]: Completed translation [2021-12-18 10:34:29,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29 WrapperNode [2021-12-18 10:34:29,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 10:34:29,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 10:34:29,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 10:34:29,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 10:34:29,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,832 INFO L137 Inliner]: procedures = 490, calls = 2655, calls flagged for inlining = 292, calls inlined = 259, statements flattened = 5839 [2021-12-18 10:34:29,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 10:34:29,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 10:34:29,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 10:34:29,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 10:34:29,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:29,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:30,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:30,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:30,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 10:34:30,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 10:34:30,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 10:34:30,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 10:34:30,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (1/1) ... [2021-12-18 10:34:30,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 10:34:30,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 10:34:30,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 10:34:30,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 10:34:30,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 10:34:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 10:34:30,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 10:34:30,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 10:34:30,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-18 10:34:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-18 10:34:30,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 10:34:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 10:34:30,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 10:34:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 10:34:30,139 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 10:34:30,139 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 10:34:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2021-12-18 10:34:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-18 10:34:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2021-12-18 10:34:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-18 10:34:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 10:34:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2021-12-18 10:34:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 10:34:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 10:34:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 10:34:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 10:34:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 10:34:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 10:34:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-18 10:34:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-18 10:34:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2021-12-18 10:34:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2021-12-18 10:34:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 10:34:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 10:34:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 10:34:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 10:34:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 10:34:30,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2021-12-18 10:34:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 10:34:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 10:34:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2021-12-18 10:34:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 10:34:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 10:34:30,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 10:34:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 10:34:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2021-12-18 10:34:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2021-12-18 10:34:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 10:34:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 10:34:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 10:34:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 10:34:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-18 10:34:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-12-18 10:34:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 10:34:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 10:34:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 10:34:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-18 10:34:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-18 10:34:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 10:34:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 10:34:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 10:34:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 10:34:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2021-12-18 10:34:30,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2021-12-18 10:34:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:34:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 10:34:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2021-12-18 10:34:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2021-12-18 10:34:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-18 10:34:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-18 10:34:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 10:34:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 10:34:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 10:34:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 10:34:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 10:34:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 10:34:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 10:34:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 10:34:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-12-18 10:34:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-12-18 10:34:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 10:34:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 10:34:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2021-12-18 10:34:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2021-12-18 10:34:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2021-12-18 10:34:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2021-12-18 10:34:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-18 10:34:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-18 10:34:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 10:34:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 10:34:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 10:34:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 10:34:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 10:34:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 10:34:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 10:34:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 10:34:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 10:34:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 10:34:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2021-12-18 10:34:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2021-12-18 10:34:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 10:34:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 10:34:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 10:34:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 10:34:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2021-12-18 10:34:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2021-12-18 10:34:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2021-12-18 10:34:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2021-12-18 10:34:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 10:34:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 10:34:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2021-12-18 10:34:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2021-12-18 10:34:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-18 10:34:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-18 10:34:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 10:34:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 10:34:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2021-12-18 10:34:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2021-12-18 10:34:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-12-18 10:34:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2021-12-18 10:34:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 10:34:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 10:34:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 10:34:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 10:34:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 10:34:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 10:34:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 10:34:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 10:34:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2021-12-18 10:34:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2021-12-18 10:34:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-12-18 10:34:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2021-12-18 10:34:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 10:34:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2021-12-18 10:34:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2021-12-18 10:34:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2021-12-18 10:34:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2021-12-18 10:34:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 10:34:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-18 10:34:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-18 10:34:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-18 10:34:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2021-12-18 10:34:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2021-12-18 10:34:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2021-12-18 10:34:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2021-12-18 10:34:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-18 10:34:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-18 10:34:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 10:34:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 10:34:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 10:34:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 10:34:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 10:34:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 10:34:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 10:34:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 10:34:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 10:34:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 10:34:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 10:34:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 10:34:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 10:34:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 10:34:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 10:34:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 10:34:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2021-12-18 10:34:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2021-12-18 10:34:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2021-12-18 10:34:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2021-12-18 10:34:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 10:34:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 10:34:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2021-12-18 10:34:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2021-12-18 10:34:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 10:34:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 10:34:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 10:34:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 10:34:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 10:34:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 10:34:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 10:34:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-12-18 10:34:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-12-18 10:34:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 10:34:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 10:34:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-12-18 10:34:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_task_lock_of_rhine_private [2021-12-18 10:34:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2021-12-18 10:34:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2021-12-18 10:34:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2021-12-18 10:34:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2021-12-18 10:34:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2021-12-18 10:34:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2021-12-18 10:34:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2021-12-18 10:34:30,267 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2021-12-18 10:34:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-18 10:34:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-18 10:34:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 10:34:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 10:34:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-18 10:34:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-18 10:34:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 10:34:30,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 10:34:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2021-12-18 10:34:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2021-12-18 10:34:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2021-12-18 10:34:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2021-12-18 10:34:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 10:34:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 10:34:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 10:34:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 10:34:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 10:34:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2021-12-18 10:34:30,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2021-12-18 10:34:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2021-12-18 10:34:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2021-12-18 10:34:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 10:34:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 10:34:31,090 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 10:34:31,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 10:34:31,253 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 10:41:15,478 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 10:41:15,552 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 10:41:15,578 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 10:41:15,579 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 10:41:15,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:41:15 BoogieIcfgContainer [2021-12-18 10:41:15,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 10:41:15,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 10:41:15,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 10:41:15,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 10:41:15,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:34:26" (1/3) ... [2021-12-18 10:41:15,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143b531f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:41:15, skipping insertion in model container [2021-12-18 10:41:15,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:34:29" (2/3) ... [2021-12-18 10:41:15,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143b531f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:41:15, skipping insertion in model container [2021-12-18 10:41:15,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:41:15" (3/3) ... [2021-12-18 10:41:15,590 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2021-12-18 10:41:15,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 10:41:15,600 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 10:41:15,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 10:41:15,656 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 10:41:15,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 10:41:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) [2021-12-18 10:41:15,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 10:41:15,738 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:41:15,739 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:41:15,740 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:41:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:41:15,745 INFO L85 PathProgramCache]: Analyzing trace with hash -890164547, now seen corresponding path program 1 times [2021-12-18 10:41:15,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:41:15,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198261242] [2021-12-18 10:41:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:41:15,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:41:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:41:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:41:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:41:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:41:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:41:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:41:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:41:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:41:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:41:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:41:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:41:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:41:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:41:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:41:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:41:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 10:41:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 10:41:17,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:41:17,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198261242] [2021-12-18 10:41:17,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198261242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:41:17,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:41:17,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:41:17,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864275257] [2021-12-18 10:41:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:41:17,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:41:17,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:41:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:41:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:41:17,795 INFO L87 Difference]: Start difference. First operand has 2217 states, 1510 states have (on average 1.276158940397351) internal successors, (1927), 1559 states have internal predecessors, (1927), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:41:19,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:41:22,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:41:34,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:41:34,208 INFO L93 Difference]: Finished difference Result 6528 states and 9337 transitions. [2021-12-18 10:41:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:41:34,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2021-12-18 10:41:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:41:34,274 INFO L225 Difference]: With dead ends: 6528 [2021-12-18 10:41:34,274 INFO L226 Difference]: Without dead ends: 4331 [2021-12-18 10:41:34,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:41:34,296 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 3732 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 1739 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 6525 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:41:34,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4225 Valid, 6525 Invalid, 3727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1739 Valid, 1986 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-12-18 10:41:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2021-12-18 10:41:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4227. [2021-12-18 10:41:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 2878 states have (on average 1.2602501737317582) internal successors, (3627), 2973 states have internal predecessors, (3627), 1104 states have call successors, (1104), 243 states have call predecessors, (1104), 242 states have return successors, (1100), 1074 states have call predecessors, (1100), 1100 states have call successors, (1100) [2021-12-18 10:41:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5831 transitions. [2021-12-18 10:41:34,613 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5831 transitions. Word has length 184 [2021-12-18 10:41:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:41:34,616 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 5831 transitions. [2021-12-18 10:41:34,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:41:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5831 transitions. [2021-12-18 10:41:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 10:41:34,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:41:34,627 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:41:34,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 10:41:34,628 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:41:34,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:41:34,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1173083363, now seen corresponding path program 1 times [2021-12-18 10:41:34,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:41:34,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503784244] [2021-12-18 10:41:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:41:34,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:41:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:41:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:41:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:41:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:41:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:41:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:41:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:41:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:41:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:41:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:41:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:41:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:41:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:41:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:41:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:41:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 10:41:35,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:41:35,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503784244] [2021-12-18 10:41:35,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503784244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:41:35,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:41:35,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:41:35,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881905527] [2021-12-18 10:41:35,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:41:35,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:41:36,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:41:36,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:41:36,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:41:36,001 INFO L87 Difference]: Start difference. First operand 4227 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 10:41:38,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:41:40,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:41:53,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:41:53,436 INFO L93 Difference]: Finished difference Result 12279 states and 17031 transitions. [2021-12-18 10:41:53,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:41:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 186 [2021-12-18 10:41:53,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:41:53,491 INFO L225 Difference]: With dead ends: 12279 [2021-12-18 10:41:53,491 INFO L226 Difference]: Without dead ends: 8085 [2021-12-18 10:41:53,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:41:53,510 INFO L933 BasicCegarLoop]: 3202 mSDtfsCounter, 3300 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 1615 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3769 SdHoareTripleChecker+Valid, 6491 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1615 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:41:53,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3769 Valid, 6491 Invalid, 3641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1615 Valid, 2024 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2021-12-18 10:41:53,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8085 states. [2021-12-18 10:41:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 7880. [2021-12-18 10:41:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 5343 states have (on average 1.2543514879281303) internal successors, (6702), 5517 states have internal predecessors, (6702), 2059 states have call successors, (2059), 476 states have call predecessors, (2059), 475 states have return successors, (2055), 2004 states have call predecessors, (2055), 2055 states have call successors, (2055) [2021-12-18 10:41:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10816 transitions. [2021-12-18 10:41:53,828 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10816 transitions. Word has length 186 [2021-12-18 10:41:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:41:53,829 INFO L470 AbstractCegarLoop]: Abstraction has 7880 states and 10816 transitions. [2021-12-18 10:41:53,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 10:41:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10816 transitions. [2021-12-18 10:41:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-18 10:41:53,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:41:53,833 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:41:53,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 10:41:53,835 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:41:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:41:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2097339821, now seen corresponding path program 1 times [2021-12-18 10:41:53,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:41:53,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397765062] [2021-12-18 10:41:53,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:41:53,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:41:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:41:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:41:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:41:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:41:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:41:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:41:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:41:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:41:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:41:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:41:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:41:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:41:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:41:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:41:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:41:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:41:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 10:41:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:41:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 10:41:54,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:41:54,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397765062] [2021-12-18 10:41:54,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397765062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:41:54,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:41:54,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:41:54,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870931041] [2021-12-18 10:41:54,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:41:54,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:41:54,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:41:54,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:41:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:41:54,971 INFO L87 Difference]: Start difference. First operand 7880 states and 10816 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:41:57,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:41:59,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:42:09,985 INFO L93 Difference]: Finished difference Result 22436 states and 30942 transitions. [2021-12-18 10:42:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:42:09,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2021-12-18 10:42:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:42:10,080 INFO L225 Difference]: With dead ends: 22436 [2021-12-18 10:42:10,081 INFO L226 Difference]: Without dead ends: 14589 [2021-12-18 10:42:10,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:42:10,121 INFO L933 BasicCegarLoop]: 3095 mSDtfsCounter, 3274 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 1636 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3707 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1636 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:42:10,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3707 Valid, 6395 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1636 Valid, 1945 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2021-12-18 10:42:10,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14589 states. [2021-12-18 10:42:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14589 to 14208. [2021-12-18 10:42:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14208 states, 9577 states have (on average 1.2536284849117678) internal successors, (12006), 9907 states have internal predecessors, (12006), 3723 states have call successors, (3723), 908 states have call predecessors, (3723), 905 states have return successors, (3723), 3608 states have call predecessors, (3723), 3719 states have call successors, (3723) [2021-12-18 10:42:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14208 states to 14208 states and 19452 transitions. [2021-12-18 10:42:10,722 INFO L78 Accepts]: Start accepts. Automaton has 14208 states and 19452 transitions. Word has length 188 [2021-12-18 10:42:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:42:10,724 INFO L470 AbstractCegarLoop]: Abstraction has 14208 states and 19452 transitions. [2021-12-18 10:42:10,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:42:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 14208 states and 19452 transitions. [2021-12-18 10:42:10,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 10:42:10,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:42:10,729 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:42:10,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 10:42:10,729 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:42:10,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:42:10,730 INFO L85 PathProgramCache]: Analyzing trace with hash -462196998, now seen corresponding path program 1 times [2021-12-18 10:42:10,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:42:10,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738208195] [2021-12-18 10:42:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:42:10,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:42:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:42:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:42:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:42:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:42:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:42:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:42:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:42:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:42:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:42:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:42:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:42:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:42:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:42:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:42:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:42:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:42:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 10:42:11,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:42:11,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738208195] [2021-12-18 10:42:11,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738208195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:42:11,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:42:11,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:42:11,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233554312] [2021-12-18 10:42:11,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:42:11,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:42:11,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:42:11,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:42:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:42:11,943 INFO L87 Difference]: Start difference. First operand 14208 states and 19452 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:42:14,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:16,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:27,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:42:27,314 INFO L93 Difference]: Finished difference Result 30363 states and 41669 transitions. [2021-12-18 10:42:27,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:42:27,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2021-12-18 10:42:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:42:27,412 INFO L225 Difference]: With dead ends: 30363 [2021-12-18 10:42:27,412 INFO L226 Difference]: Without dead ends: 16188 [2021-12-18 10:42:27,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:42:27,474 INFO L933 BasicCegarLoop]: 3524 mSDtfsCounter, 3229 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 1581 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 7037 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1581 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-12-18 10:42:27,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3663 Valid, 7037 Invalid, 3545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1581 Valid, 1962 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2021-12-18 10:42:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16188 states. [2021-12-18 10:42:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16188 to 15717. [2021-12-18 10:42:28,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15717 states, 10566 states have (on average 1.2449365890592465) internal successors, (13154), 10935 states have internal predecessors, (13154), 4088 states have call successors, (4088), 1066 states have call predecessors, (4088), 1060 states have return successors, (4088), 3942 states have call predecessors, (4088), 4084 states have call successors, (4088) [2021-12-18 10:42:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15717 states to 15717 states and 21330 transitions. [2021-12-18 10:42:28,261 INFO L78 Accepts]: Start accepts. Automaton has 15717 states and 21330 transitions. Word has length 198 [2021-12-18 10:42:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:42:28,262 INFO L470 AbstractCegarLoop]: Abstraction has 15717 states and 21330 transitions. [2021-12-18 10:42:28,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:42:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 15717 states and 21330 transitions. [2021-12-18 10:42:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 10:42:28,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:42:28,268 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:42:28,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 10:42:28,269 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:42:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:42:28,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1275605142, now seen corresponding path program 1 times [2021-12-18 10:42:28,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:42:28,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067237729] [2021-12-18 10:42:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:42:28,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:42:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:42:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:42:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:42:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:42:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:42:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:42:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:42:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:42:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:42:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:42:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:42:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:42:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:42:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:42:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:42:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:42:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-18 10:42:29,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:42:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067237729] [2021-12-18 10:42:29,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067237729] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:42:29,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:42:29,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:42:29,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084151052] [2021-12-18 10:42:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:42:29,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:42:29,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:42:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:42:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:42:29,319 INFO L87 Difference]: Start difference. First operand 15717 states and 21330 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:42:31,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:33,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:42:45,286 INFO L93 Difference]: Finished difference Result 45285 states and 61842 transitions. [2021-12-18 10:42:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:42:45,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2021-12-18 10:42:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:42:45,438 INFO L225 Difference]: With dead ends: 45285 [2021-12-18 10:42:45,439 INFO L226 Difference]: Without dead ends: 29601 [2021-12-18 10:42:45,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:42:45,499 INFO L933 BasicCegarLoop]: 3166 mSDtfsCounter, 3752 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 1761 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-18 10:42:45,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4252 Valid, 6543 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1761 Valid, 1973 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-12-18 10:42:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29601 states. [2021-12-18 10:42:46,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29601 to 28764. [2021-12-18 10:42:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28764 states, 19339 states have (on average 1.2437561404415947) internal successors, (24053), 20034 states have internal predecessors, (24053), 7486 states have call successors, (7486), 1947 states have call predecessors, (7486), 1936 states have return successors, (7490), 7199 states have call predecessors, (7490), 7482 states have call successors, (7490) [2021-12-18 10:42:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28764 states to 28764 states and 39029 transitions. [2021-12-18 10:42:46,596 INFO L78 Accepts]: Start accepts. Automaton has 28764 states and 39029 transitions. Word has length 198 [2021-12-18 10:42:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:42:46,597 INFO L470 AbstractCegarLoop]: Abstraction has 28764 states and 39029 transitions. [2021-12-18 10:42:46,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-18 10:42:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 28764 states and 39029 transitions. [2021-12-18 10:42:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-18 10:42:46,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:42:46,601 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 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] [2021-12-18 10:42:46,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 10:42:46,602 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:42:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:42:46,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1522260543, now seen corresponding path program 1 times [2021-12-18 10:42:46,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:42:46,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152965510] [2021-12-18 10:42:46,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:42:46,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:42:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:42:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:42:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:42:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:42:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:42:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:42:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:42:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:42:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:42:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:42:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:42:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:42:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:42:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:42:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:42:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:42:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:42:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 10:42:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:42:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-12-18 10:42:47,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:42:47,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152965510] [2021-12-18 10:42:47,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152965510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:42:47,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:42:47,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:42:47,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900361478] [2021-12-18 10:42:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:42:47,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:42:47,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:42:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:42:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:42:47,803 INFO L87 Difference]: Start difference. First operand 28764 states and 39029 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 10:42:49,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:42:52,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:43:04,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:43:04,568 INFO L93 Difference]: Finished difference Result 80380 states and 109696 transitions. [2021-12-18 10:43:04,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:43:04,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 211 [2021-12-18 10:43:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:43:04,856 INFO L225 Difference]: With dead ends: 80380 [2021-12-18 10:43:04,856 INFO L226 Difference]: Without dead ends: 51649 [2021-12-18 10:43:04,983 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 [2021-12-18 10:43:04,984 INFO L933 BasicCegarLoop]: 3751 mSDtfsCounter, 3513 mSDsluCounter, 3624 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 1575 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 7375 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1575 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2021-12-18 10:43:04,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4002 Valid, 7375 Invalid, 3578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1575 Valid, 2001 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2021-12-18 10:43:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51649 states. [2021-12-18 10:43:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51649 to 50260. [2021-12-18 10:43:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50260 states, 33946 states have (on average 1.2420020031815235) internal successors, (42161), 35199 states have internal predecessors, (42161), 12954 states have call successors, (12954), 3378 states have call predecessors, (12954), 3357 states have return successors, (12966), 12414 states have call predecessors, (12966), 12950 states have call successors, (12966) [2021-12-18 10:43:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50260 states to 50260 states and 68081 transitions. [2021-12-18 10:43:07,170 INFO L78 Accepts]: Start accepts. Automaton has 50260 states and 68081 transitions. Word has length 211 [2021-12-18 10:43:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:43:07,171 INFO L470 AbstractCegarLoop]: Abstraction has 50260 states and 68081 transitions. [2021-12-18 10:43:07,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-18 10:43:07,171 INFO L276 IsEmpty]: Start isEmpty. Operand 50260 states and 68081 transitions. [2021-12-18 10:43:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-18 10:43:07,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:43:07,175 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:43:07,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 10:43:07,176 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:43:07,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:43:07,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1899693548, now seen corresponding path program 1 times [2021-12-18 10:43:07,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:43:07,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438525415] [2021-12-18 10:43:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:43:07,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:43:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:43:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:43:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:43:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:43:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:43:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:43:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:43:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:43:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:43:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:43:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:43:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:43:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:43:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:43:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:43:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:43:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:43:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:43:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:43:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:43:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:43:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:43:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2021-12-18 10:43:08,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:43:08,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438525415] [2021-12-18 10:43:08,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438525415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:43:08,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:43:08,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 10:43:08,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987346571] [2021-12-18 10:43:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:43:08,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 10:43:08,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:43:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 10:43:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 10:43:08,682 INFO L87 Difference]: Start difference. First operand 50260 states and 68081 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:43:10,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:43:13,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:43:25,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:43:25,985 INFO L93 Difference]: Finished difference Result 150891 states and 205654 transitions. [2021-12-18 10:43:25,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 10:43:25,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2021-12-18 10:43:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:43:26,654 INFO L225 Difference]: With dead ends: 150891 [2021-12-18 10:43:26,654 INFO L226 Difference]: Without dead ends: 100845 [2021-12-18 10:43:26,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:43:26,864 INFO L933 BasicCegarLoop]: 4228 mSDtfsCounter, 3405 mSDsluCounter, 3929 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 1469 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-12-18 10:43:26,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3892 Valid, 8157 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1469 Valid, 1981 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2021-12-18 10:43:27,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100845 states. [2021-12-18 10:43:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100845 to 98161. [2021-12-18 10:43:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98161 states, 66334 states have (on average 1.2405855217535502) internal successors, (82293), 68662 states have internal predecessors, (82293), 25233 states have call successors, (25233), 6616 states have call predecessors, (25233), 6591 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-12-18 10:43:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98161 states to 98161 states and 132787 transitions. [2021-12-18 10:43:30,772 INFO L78 Accepts]: Start accepts. Automaton has 98161 states and 132787 transitions. Word has length 245 [2021-12-18 10:43:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:43:30,773 INFO L470 AbstractCegarLoop]: Abstraction has 98161 states and 132787 transitions. [2021-12-18 10:43:30,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-18 10:43:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 98161 states and 132787 transitions. [2021-12-18 10:43:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-18 10:43:30,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:43:30,777 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:43:30,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 10:43:30,778 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:43:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:43:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash 23534486, now seen corresponding path program 1 times [2021-12-18 10:43:30,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:43:30,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150928212] [2021-12-18 10:43:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:43:30,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:43:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:43:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:43:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:43:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:43:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:43:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:43:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:43:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:43:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:43:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:43:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:43:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:43:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:43:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:43:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:43:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:43:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:43:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:43:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:43:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:43:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:43:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:43:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-12-18 10:43:32,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:43:32,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150928212] [2021-12-18 10:43:32,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150928212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:43:32,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:43:32,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:43:32,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603829356] [2021-12-18 10:43:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:43:32,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:43:32,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:43:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:43:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:43:32,521 INFO L87 Difference]: Start difference. First operand 98161 states and 132787 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-12-18 10:43:34,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:43:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:43:47,669 INFO L93 Difference]: Finished difference Result 100847 states and 137606 transitions. [2021-12-18 10:43:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:43:47,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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) Word has length 245 [2021-12-18 10:43:47,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:43:48,278 INFO L225 Difference]: With dead ends: 100847 [2021-12-18 10:43:48,278 INFO L226 Difference]: Without dead ends: 100845 [2021-12-18 10:43:48,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:43:48,335 INFO L933 BasicCegarLoop]: 2795 mSDtfsCounter, 3040 mSDsluCounter, 5571 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1183 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3350 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:43:48,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3350 Valid, 8366 Invalid, 3422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1183 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-12-18 10:43:48,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100845 states. [2021-12-18 10:43:50,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100845 to 98165. [2021-12-18 10:43:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98165 states, 66337 states have (on average 1.2405746416027255) internal successors, (82296), 68665 states have internal predecessors, (82296), 25233 states have call successors, (25233), 6617 states have call predecessors, (25233), 6592 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-12-18 10:43:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98165 states to 98165 states and 132790 transitions. [2021-12-18 10:43:51,646 INFO L78 Accepts]: Start accepts. Automaton has 98165 states and 132790 transitions. Word has length 245 [2021-12-18 10:43:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:43:51,647 INFO L470 AbstractCegarLoop]: Abstraction has 98165 states and 132790 transitions. [2021-12-18 10:43:51,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 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) [2021-12-18 10:43:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 98165 states and 132790 transitions. [2021-12-18 10:43:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-12-18 10:43:51,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:43:51,650 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:43:51,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 10:43:51,651 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:43:51,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:43:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -735385157, now seen corresponding path program 1 times [2021-12-18 10:43:51,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:43:51,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278026804] [2021-12-18 10:43:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:43:51,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:43:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:43:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:43:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:43:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:43:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:43:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:43:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:43:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:43:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:43:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:43:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:43:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:43:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:43:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:43:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:43:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:43:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:43:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:43:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:43:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:43:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:43:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:43:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:43:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:43:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:43:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-12-18 10:43:53,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:43:53,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278026804] [2021-12-18 10:43:53,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278026804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:43:53,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:43:53,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:43:53,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253527656] [2021-12-18 10:43:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:43:53,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:43:53,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:43:53,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:43:53,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:43:53,288 INFO L87 Difference]: Start difference. First operand 98165 states and 132790 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:43:55,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:44:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:44:08,292 INFO L93 Difference]: Finished difference Result 100851 states and 137609 transitions. [2021-12-18 10:44:08,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:44:08,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 250 [2021-12-18 10:44:08,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:44:08,714 INFO L225 Difference]: With dead ends: 100851 [2021-12-18 10:44:08,714 INFO L226 Difference]: Without dead ends: 100849 [2021-12-18 10:44:08,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:44:08,764 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 3032 mSDsluCounter, 5568 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1182 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1182 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2021-12-18 10:44:08,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 8365 Invalid, 3421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1182 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2021-12-18 10:44:08,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100849 states. [2021-12-18 10:44:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100849 to 98169. [2021-12-18 10:44:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98169 states, 66340 states have (on average 1.240563762435936) internal successors, (82299), 68668 states have internal predecessors, (82299), 25233 states have call successors, (25233), 6618 states have call predecessors, (25233), 6593 states have return successors, (25261), 24346 states have call predecessors, (25261), 25229 states have call successors, (25261) [2021-12-18 10:44:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98169 states to 98169 states and 132793 transitions. [2021-12-18 10:44:12,182 INFO L78 Accepts]: Start accepts. Automaton has 98169 states and 132793 transitions. Word has length 250 [2021-12-18 10:44:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:44:12,186 INFO L470 AbstractCegarLoop]: Abstraction has 98169 states and 132793 transitions. [2021-12-18 10:44:12,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 10:44:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 98169 states and 132793 transitions. [2021-12-18 10:44:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 10:44:12,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:44:12,193 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:44:12,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 10:44:12,193 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:44:12,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:44:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1755549336, now seen corresponding path program 1 times [2021-12-18 10:44:12,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:44:12,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268110687] [2021-12-18 10:44:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:44:12,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:44:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:44:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:44:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:44:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:44:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:44:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:44:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:44:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:44:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:44:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:44:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:44:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:44:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:44:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:44:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:44:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:44:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:44:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:44:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:44:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:44:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:44:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 10:44:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 10:44:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 10:44:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 10:44:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 10:44:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2021-12-18 10:44:13,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:44:13,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268110687] [2021-12-18 10:44:13,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268110687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:44:13,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:44:13,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 10:44:13,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163074309] [2021-12-18 10:44:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:44:13,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 10:44:13,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:44:13,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 10:44:13,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 10:44:13,624 INFO L87 Difference]: Start difference. First operand 98169 states and 132793 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 10:44:15,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:44:18,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:44:20,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:44:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:44:45,707 INFO L93 Difference]: Finished difference Result 248099 states and 337560 transitions. [2021-12-18 10:44:45,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 10:44:45,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 264 [2021-12-18 10:44:45,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:44:46,563 INFO L225 Difference]: With dead ends: 248099 [2021-12-18 10:44:46,564 INFO L226 Difference]: Without dead ends: 150144 [2021-12-18 10:44:46,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 10:44:46,818 INFO L933 BasicCegarLoop]: 5147 mSDtfsCounter, 3748 mSDsluCounter, 4898 mSDsCounter, 0 mSdLazyCounter, 3947 mSolverCounterSat, 2859 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 10045 SdHoareTripleChecker+Invalid, 6809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2859 IncrementalHoareTripleChecker+Valid, 3947 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2021-12-18 10:44:46,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4113 Valid, 10045 Invalid, 6809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2859 Valid, 3947 Invalid, 3 Unknown, 0 Unchecked, 27.0s Time] [2021-12-18 10:44:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150144 states. [2021-12-18 10:44:51,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150144 to 146102. [2021-12-18 10:44:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146102 states, 98760 states have (on average 1.2400060753341433) internal successors, (122463), 102163 states have internal predecessors, (122463), 37512 states have call successors, (37512), 9856 states have call predecessors, (37512), 9827 states have return successors, (37556), 36278 states have call predecessors, (37556), 37508 states have call successors, (37556) [2021-12-18 10:44:52,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146102 states to 146102 states and 197531 transitions. [2021-12-18 10:44:53,022 INFO L78 Accepts]: Start accepts. Automaton has 146102 states and 197531 transitions. Word has length 264 [2021-12-18 10:44:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:44:53,023 INFO L470 AbstractCegarLoop]: Abstraction has 146102 states and 197531 transitions. [2021-12-18 10:44:53,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 10:44:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 146102 states and 197531 transitions. [2021-12-18 10:44:53,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-18 10:44:53,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:44:53,027 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:44:53,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 10:44:53,028 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:44:53,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:44:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash 148390518, now seen corresponding path program 1 times [2021-12-18 10:44:53,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:44:53,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640540471] [2021-12-18 10:44:53,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:44:53,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:44:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:44:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:44:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:44:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:44:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:44:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:44:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:44:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:44:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:44:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:44:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:44:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:44:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:44:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:44:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:44:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:44:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:44:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:44:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:44:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:44:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:44:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:44:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:44:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:44:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 10:44:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:44:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-12-18 10:44:54,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:44:54,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640540471] [2021-12-18 10:44:54,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640540471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:44:54,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:44:54,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:44:54,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5777740] [2021-12-18 10:44:54,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:44:54,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:44:54,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:44:54,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:44:54,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:44:54,569 INFO L87 Difference]: Start difference. First operand 146102 states and 197531 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:44:56,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 10:45:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 10:45:10,963 INFO L93 Difference]: Finished difference Result 150128 states and 204750 transitions. [2021-12-18 10:45:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 10:45:10,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 255 [2021-12-18 10:45:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 10:45:11,722 INFO L225 Difference]: With dead ends: 150128 [2021-12-18 10:45:11,723 INFO L226 Difference]: Without dead ends: 150124 [2021-12-18 10:45:11,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 10:45:11,788 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 3042 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 1183 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 8328 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-12-18 10:45:11,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3354 Valid, 8328 Invalid, 3422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1183 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2021-12-18 10:45:11,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150124 states. [2021-12-18 10:45:17,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150124 to 146104. [2021-12-18 10:45:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146104 states, 98762 states have (on average 1.2399910896903668) internal successors, (122464), 102164 states have internal predecessors, (122464), 37512 states have call successors, (37512), 9857 states have call predecessors, (37512), 9827 states have return successors, (37556), 36278 states have call predecessors, (37556), 37508 states have call successors, (37556) [2021-12-18 10:45:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146104 states to 146104 states and 197532 transitions. [2021-12-18 10:45:17,857 INFO L78 Accepts]: Start accepts. Automaton has 146104 states and 197532 transitions. Word has length 255 [2021-12-18 10:45:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 10:45:17,857 INFO L470 AbstractCegarLoop]: Abstraction has 146104 states and 197532 transitions. [2021-12-18 10:45:17,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 10:45:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 146104 states and 197532 transitions. [2021-12-18 10:45:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-18 10:45:17,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 10:45:17,862 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 10:45:17,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 10:45:17,862 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 10:45:17,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 10:45:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash 569982555, now seen corresponding path program 1 times [2021-12-18 10:45:17,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 10:45:17,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397435562] [2021-12-18 10:45:17,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 10:45:17,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 10:45:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 10:45:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 10:45:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 10:45:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 10:45:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 10:45:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 10:45:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 10:45:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 10:45:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 10:45:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 10:45:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 10:45:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 10:45:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 10:45:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 10:45:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 10:45:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 10:45:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 10:45:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 10:45:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 10:45:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 10:45:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 10:45:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 10:45:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 10:45:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 10:45:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 10:45:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 10:45:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 10:45:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-12-18 10:45:19,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 10:45:19,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397435562] [2021-12-18 10:45:19,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397435562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 10:45:19,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 10:45:19,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 10:45:19,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435218004] [2021-12-18 10:45:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 10:45:19,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 10:45:19,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 10:45:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 10:45:19,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 10:45:19,346 INFO L87 Difference]: Start difference. First operand 146104 states and 197532 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 10:45:21,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []