./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:59:59,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:59:59,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:59:59,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:59:59,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:59:59,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:59:59,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:59:59,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:59:59,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:59:59,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:59:59,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:59:59,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:59:59,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:59:59,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:59:59,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:59:59,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:59:59,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:59:59,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:59:59,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:59:59,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:59:59,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:59:59,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:59:59,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:59:59,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:59:59,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:59:59,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:59:59,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:59:59,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:59:59,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:59:59,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:59:59,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:59:59,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:59:59,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:59:59,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:59:59,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:59:59,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:59:59,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:59:59,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:59:59,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:59:59,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:59:59,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:59:59,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:59:59,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:59:59,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:59:59,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:59:59,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:59:59,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:59:59,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:59:59,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:59:59,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:59:59,877 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:59:59,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:59:59,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:59:59,879 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:59:59,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:59:59,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:59:59,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:59:59,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:59:59,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:59:59,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:59:59,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:59:59,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:59:59,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:59:59,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:59:59,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:59:59,881 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:59:59,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:59:59,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:59:59,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2021-12-21 17:00:00,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:00:00,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:00:00,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:00:00,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:00:00,109 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:00:00,110 INFO L432 ainManager$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-icplus-ipg.cil.i [2021-12-21 17:00:00,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdccb70bb/1aae8db0778a402e912adfff2c9b42b5/FLAG51df67a05 [2021-12-21 17:00:00,761 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:00:00,762 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-icplus-ipg.cil.i [2021-12-21 17:00:00,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdccb70bb/1aae8db0778a402e912adfff2c9b42b5/FLAG51df67a05 [2021-12-21 17:00:01,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdccb70bb/1aae8db0778a402e912adfff2c9b42b5 [2021-12-21 17:00:01,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:00:01,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:00:01,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:00:01,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:00:01,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:00:01,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:00:01" (1/1) ... [2021-12-21 17:00:01,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4739d35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:01, skipping insertion in model container [2021-12-21 17:00:01,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:00:01" (1/1) ... [2021-12-21 17:00:01,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:00:01,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:00:02,866 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-icplus-ipg.cil.i[292221,292234] [2021-12-21 17:00:02,869 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-icplus-ipg.cil.i[292387,292400] [2021-12-21 17:00:02,870 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-icplus-ipg.cil.i[292551,292564] [2021-12-21 17:00:02,870 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-icplus-ipg.cil.i[292716,292729] [2021-12-21 17:00:02,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:00:02,933 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:00:03,143 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-icplus-ipg.cil.i[292221,292234] [2021-12-21 17:00:03,143 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-icplus-ipg.cil.i[292387,292400] [2021-12-21 17:00:03,144 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-icplus-ipg.cil.i[292551,292564] [2021-12-21 17:00:03,144 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-icplus-ipg.cil.i[292716,292729] [2021-12-21 17:00:03,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:00:03,237 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:00:03,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03 WrapperNode [2021-12-21 17:00:03,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:00:03,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:00:03,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:00:03,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:00:03,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,457 INFO L137 Inliner]: procedures = 357, calls = 1559, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 4089 [2021-12-21 17:00:03,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:00:03,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:00:03,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:00:03,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:00:03,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:00:03,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:00:03,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:00:03,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:00:03,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (1/1) ... [2021-12-21 17:00:03,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:00:03,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:00:03,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:00:03,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:00:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-12-21 17:00:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-12-21 17:00:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-21 17:00:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-21 17:00:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:00:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:00:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:00:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:00:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:00:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:00:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-12-21 17:00:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-12-21 17:00:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:00:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:00:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:00:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:00:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:00:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:00:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2021-12-21 17:00:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2021-12-21 17:00:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:00:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:00:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:00:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:00:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-12-21 17:00:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-12-21 17:00:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:00:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:00:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:00:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:00:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-21 17:00:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-21 17:00:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-12-21 17:00:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-12-21 17:00:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-21 17:00:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-21 17:00:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 17:00:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 17:00:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:00:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:00:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 17:00:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 17:00:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 17:00:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 17:00:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-12-21 17:00:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-12-21 17:00:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-12-21 17:00:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-12-21 17:00:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-21 17:00:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-21 17:00:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:00:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:00:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:00:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-21 17:00:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-21 17:00:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:00:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:00:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:00:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 17:00:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 17:00:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 17:00:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 17:00:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:00:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:00:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:00:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-21 17:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-21 17:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-12-21 17:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-12-21 17:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-12-21 17:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-12-21 17:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-12-21 17:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-12-21 17:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:00:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-12-21 17:00:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-12-21 17:00:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:00:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-21 17:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-21 17:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-12-21 17:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-12-21 17:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-12-21 17:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-12-21 17:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-12-21 17:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-12-21 17:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 17:00:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 17:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-21 17:00:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-21 17:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:00:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:00:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:00:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:00:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:00:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:00:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:00:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:00:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:00:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:00:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:00:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 17:00:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 17:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-21 17:00:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-21 17:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 17:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 17:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-21 17:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-21 17:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-12-21 17:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-12-21 17:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-12-21 17:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-12-21 17:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-12-21 17:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-12-21 17:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-12-21 17:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-12-21 17:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-12-21 17:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-12-21 17:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-12-21 17:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-12-21 17:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:00:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:00:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-21 17:00:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2021-12-21 17:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-21 17:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-21 17:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-12-21 17:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-12-21 17:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-21 17:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-21 17:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-12-21 17:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-12-21 17:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 17:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 17:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:00:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:00:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-12-21 17:00:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-12-21 17:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-12-21 17:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-12-21 17:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-21 17:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-21 17:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-21 17:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-21 17:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-21 17:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-12-21 17:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-12-21 17:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-12-21 17:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-12-21 17:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-21 17:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-21 17:00:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:00:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:00:04,366 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:00:04,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:00:04,946 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:00:06,663 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:00:06,708 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:00:06,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:00:06,720 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 17:00:06,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:00:06 BoogieIcfgContainer [2021-12-21 17:00:06,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:00:06,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:00:06,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:00:06,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:00:06,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:00:01" (1/3) ... [2021-12-21 17:00:06,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fffa5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:00:06, skipping insertion in model container [2021-12-21 17:00:06,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:00:03" (2/3) ... [2021-12-21 17:00:06,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fffa5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:00:06, skipping insertion in model container [2021-12-21 17:00:06,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:00:06" (3/3) ... [2021-12-21 17:00:06,728 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-12-21 17:00:06,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:00:06,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:00:06,768 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:00:06,773 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:00:06,773 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:00:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 1656 states, 1118 states have (on average 1.2531305903398926) internal successors, (1401), 1153 states have internal predecessors, (1401), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2021-12-21 17:00:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 17:00:06,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:06,815 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:06,816 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)] === [2021-12-21 17:00:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1151449155, now seen corresponding path program 1 times [2021-12-21 17:00:06,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:06,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935175807] [2021-12-21 17:00:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:06,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 17:00:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:00:07,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:07,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935175807] [2021-12-21 17:00:07,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935175807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:07,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:07,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:07,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050922043] [2021-12-21 17:00:07,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:07,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:07,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:07,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:07,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:07,514 INFO L87 Difference]: Start difference. First operand has 1656 states, 1118 states have (on average 1.2531305903398926) internal successors, (1401), 1153 states have internal predecessors, (1401), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:10,659 INFO L93 Difference]: Finished difference Result 4964 states and 7029 transitions. [2021-12-21 17:00:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:10,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2021-12-21 17:00:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:10,705 INFO L225 Difference]: With dead ends: 4964 [2021-12-21 17:00:10,705 INFO L226 Difference]: Without dead ends: 3319 [2021-12-21 17:00:10,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:10,725 INFO L933 BasicCegarLoop]: 2369 mSDtfsCounter, 2932 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 1384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 4720 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1384 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:10,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3325 Valid, 4720 Invalid, 3001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1384 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-21 17:00:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2021-12-21 17:00:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3179. [2021-12-21 17:00:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2154 states have (on average 1.2465181058495822) internal successors, (2685), 2221 states have internal predecessors, (2685), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2021-12-21 17:00:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4357 transitions. [2021-12-21 17:00:10,888 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4357 transitions. Word has length 116 [2021-12-21 17:00:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:10,889 INFO L470 AbstractCegarLoop]: Abstraction has 3179 states and 4357 transitions. [2021-12-21 17:00:10,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4357 transitions. [2021-12-21 17:00:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-21 17:00:10,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:10,893 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:10,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:00:10,893 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)] === [2021-12-21 17:00:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash -341130604, now seen corresponding path program 1 times [2021-12-21 17:00:10,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:10,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981131992] [2021-12-21 17:00:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:10,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 17:00:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:00:11,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:11,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981131992] [2021-12-21 17:00:11,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981131992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:11,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:11,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:11,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53108320] [2021-12-21 17:00:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:11,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:11,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:11,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:11,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:11,138 INFO L87 Difference]: Start difference. First operand 3179 states and 4357 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:13,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:13,800 INFO L93 Difference]: Finished difference Result 9465 states and 13033 transitions. [2021-12-21 17:00:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:13,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2021-12-21 17:00:13,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:13,837 INFO L225 Difference]: With dead ends: 9465 [2021-12-21 17:00:13,839 INFO L226 Difference]: Without dead ends: 6307 [2021-12-21 17:00:13,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:13,852 INFO L933 BasicCegarLoop]: 2340 mSDtfsCounter, 2761 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 1378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 4659 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1378 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:13,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3136 Valid, 4659 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1378 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 17:00:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2021-12-21 17:00:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6014. [2021-12-21 17:00:14,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 4051 states have (on average 1.2451246605776352) internal successors, (5044), 4181 states have internal predecessors, (5044), 1597 states have call successors, (1597), 366 states have call predecessors, (1597), 363 states have return successors, (1595), 1572 states have call predecessors, (1595), 1593 states have call successors, (1595) [2021-12-21 17:00:14,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8236 transitions. [2021-12-21 17:00:14,080 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8236 transitions. Word has length 117 [2021-12-21 17:00:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:14,081 INFO L470 AbstractCegarLoop]: Abstraction has 6014 states and 8236 transitions. [2021-12-21 17:00:14,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8236 transitions. [2021-12-21 17:00:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-21 17:00:14,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:14,089 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:14,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:00:14,089 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)] === [2021-12-21 17:00:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1724366179, now seen corresponding path program 1 times [2021-12-21 17:00:14,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347965745] [2021-12-21 17:00:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:14,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:00:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 17:00:14,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:14,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347965745] [2021-12-21 17:00:14,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347965745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:14,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:14,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:14,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637149667] [2021-12-21 17:00:14,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:14,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:14,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:14,394 INFO L87 Difference]: Start difference. First operand 6014 states and 8236 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:16,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:16,974 INFO L93 Difference]: Finished difference Result 12015 states and 16538 transitions. [2021-12-21 17:00:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2021-12-21 17:00:16,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:17,002 INFO L225 Difference]: With dead ends: 12015 [2021-12-21 17:00:17,002 INFO L226 Difference]: Without dead ends: 6022 [2021-12-21 17:00:17,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:17,024 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 2153 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 1070 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 5273 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1070 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:17,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 5273 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1070 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 17:00:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-12-21 17:00:17,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 5756. [2021-12-21 17:00:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3909 states have (on average 1.2491685853159376) internal successors, (4883), 4035 states have internal predecessors, (4883), 1495 states have call successors, (1495), 353 states have call predecessors, (1495), 349 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-21 17:00:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 7870 transitions. [2021-12-21 17:00:17,183 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 7870 transitions. Word has length 128 [2021-12-21 17:00:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:17,183 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 7870 transitions. [2021-12-21 17:00:17,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-21 17:00:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 7870 transitions. [2021-12-21 17:00:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-21 17:00:17,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:17,187 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:17,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:00:17,187 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:00:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1356770296, now seen corresponding path program 1 times [2021-12-21 17:00:17,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:17,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883307375] [2021-12-21 17:00:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:17,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:00:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-21 17:00:17,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:17,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883307375] [2021-12-21 17:00:17,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883307375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:17,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:17,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:00:17,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678464591] [2021-12-21 17:00:17,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:17,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:00:17,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:00:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:00:17,566 INFO L87 Difference]: Start difference. First operand 5756 states and 7870 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 17:00:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:19,830 INFO L93 Difference]: Finished difference Result 6009 states and 8269 transitions. [2021-12-21 17:00:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:00:19,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2021-12-21 17:00:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:19,860 INFO L225 Difference]: With dead ends: 6009 [2021-12-21 17:00:19,860 INFO L226 Difference]: Without dead ends: 6007 [2021-12-21 17:00:19,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:00:19,867 INFO L933 BasicCegarLoop]: 2079 mSDtfsCounter, 2351 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:19,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2586 Valid, 5995 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 17:00:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2021-12-21 17:00:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 5760. [2021-12-21 17:00:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3912 states have (on average 1.2489775051124745) internal successors, (4886), 4038 states have internal predecessors, (4886), 1495 states have call successors, (1495), 354 states have call predecessors, (1495), 350 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-21 17:00:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 7873 transitions. [2021-12-21 17:00:20,086 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 7873 transitions. Word has length 172 [2021-12-21 17:00:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:20,088 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 7873 transitions. [2021-12-21 17:00:20,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 17:00:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 7873 transitions. [2021-12-21 17:00:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-21 17:00:20,091 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:20,092 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:20,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:00:20,092 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:00:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:20,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1426342298, now seen corresponding path program 1 times [2021-12-21 17:00:20,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:20,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019184690] [2021-12-21 17:00:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:20,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:00:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:00:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-21 17:00:20,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:20,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019184690] [2021-12-21 17:00:20,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019184690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:20,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:20,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:00:20,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832821009] [2021-12-21 17:00:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:20,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:00:20,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:00:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:00:20,371 INFO L87 Difference]: Start difference. First operand 5760 states and 7873 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 17:00:22,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:22,508 INFO L93 Difference]: Finished difference Result 6013 states and 8272 transitions. [2021-12-21 17:00:22,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:00:22,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2021-12-21 17:00:22,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:22,531 INFO L225 Difference]: With dead ends: 6013 [2021-12-21 17:00:22,531 INFO L226 Difference]: Without dead ends: 6011 [2021-12-21 17:00:22,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:00:22,534 INFO L933 BasicCegarLoop]: 2083 mSDtfsCounter, 2343 mSDsluCounter, 3919 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2577 SdHoareTripleChecker+Valid, 6002 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:22,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2577 Valid, 6002 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 17:00:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2021-12-21 17:00:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 5764. [2021-12-21 17:00:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5764 states, 3915 states have (on average 1.248786717752235) internal successors, (4889), 4041 states have internal predecessors, (4889), 1495 states have call successors, (1495), 355 states have call predecessors, (1495), 351 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-21 17:00:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 7876 transitions. [2021-12-21 17:00:22,682 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 7876 transitions. Word has length 177 [2021-12-21 17:00:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:22,683 INFO L470 AbstractCegarLoop]: Abstraction has 5764 states and 7876 transitions. [2021-12-21 17:00:22,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 17:00:22,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 7876 transitions. [2021-12-21 17:00:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-21 17:00:22,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:22,687 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:22,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:00:22,687 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:00:22,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1986513272, now seen corresponding path program 1 times [2021-12-21 17:00:22,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:22,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725136878] [2021-12-21 17:00:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:22,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:00:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:00:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:00:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-12-21 17:00:22,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:22,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725136878] [2021-12-21 17:00:22,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725136878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:22,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:22,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:00:22,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251080002] [2021-12-21 17:00:22,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:22,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:00:22,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:22,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:00:22,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:00:22,961 INFO L87 Difference]: Start difference. First operand 5764 states and 7876 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 17:00:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:24,979 INFO L93 Difference]: Finished difference Result 6017 states and 8275 transitions. [2021-12-21 17:00:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:00:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2021-12-21 17:00:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:25,005 INFO L225 Difference]: With dead ends: 6017 [2021-12-21 17:00:25,010 INFO L226 Difference]: Without dead ends: 6013 [2021-12-21 17:00:25,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:00:25,018 INFO L933 BasicCegarLoop]: 2081 mSDtfsCounter, 2322 mSDsluCounter, 3928 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:25,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2551 Valid, 6009 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:00:25,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2021-12-21 17:00:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5766. [2021-12-21 17:00:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3917 states have (on average 1.2484043911156497) internal successors, (4890), 4042 states have internal predecessors, (4890), 1495 states have call successors, (1495), 356 states have call predecessors, (1495), 351 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2021-12-21 17:00:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 7877 transitions. [2021-12-21 17:00:25,235 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 7877 transitions. Word has length 182 [2021-12-21 17:00:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:25,236 INFO L470 AbstractCegarLoop]: Abstraction has 5766 states and 7877 transitions. [2021-12-21 17:00:25,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 17:00:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 7877 transitions. [2021-12-21 17:00:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 17:00:25,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:25,240 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:25,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:00:25,241 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)] === [2021-12-21 17:00:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash -424312879, now seen corresponding path program 1 times [2021-12-21 17:00:25,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:25,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233699436] [2021-12-21 17:00:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:25,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:00:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:00:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 17:00:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:00:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 17:00:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-21 17:00:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-21 17:00:25,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:25,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233699436] [2021-12-21 17:00:25,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233699436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:25,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:25,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:00:25,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656058849] [2021-12-21 17:00:25,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:25,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:00:25,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:25,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:00:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:25,446 INFO L87 Difference]: Start difference. First operand 5766 states and 7877 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:00:29,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:00:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:31,770 INFO L93 Difference]: Finished difference Result 16058 states and 22045 transitions. [2021-12-21 17:00:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:00:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 198 [2021-12-21 17:00:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:31,811 INFO L225 Difference]: With dead ends: 16058 [2021-12-21 17:00:31,811 INFO L226 Difference]: Without dead ends: 11026 [2021-12-21 17:00:31,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 17:00:31,832 INFO L933 BasicCegarLoop]: 2984 mSDtfsCounter, 3726 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 2673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 5425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2673 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:31,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3985 Valid, 6045 Invalid, 5425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2673 Valid, 2752 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-21 17:00:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2021-12-21 17:00:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10533. [2021-12-21 17:00:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10533 states, 7165 states have (on average 1.2482903000697836) internal successors, (8944), 7386 states have internal predecessors, (8944), 2723 states have call successors, (2723), 648 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2021-12-21 17:00:32,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10533 states to 10533 states and 14388 transitions. [2021-12-21 17:00:32,195 INFO L78 Accepts]: Start accepts. Automaton has 10533 states and 14388 transitions. Word has length 198 [2021-12-21 17:00:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:32,195 INFO L470 AbstractCegarLoop]: Abstraction has 10533 states and 14388 transitions. [2021-12-21 17:00:32,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:00:32,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10533 states and 14388 transitions. [2021-12-21 17:00:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-21 17:00:32,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:32,200 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:32,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:00:32,201 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)] === [2021-12-21 17:00:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash -770571854, now seen corresponding path program 1 times [2021-12-21 17:00:32,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:32,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280935960] [2021-12-21 17:00:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:32,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 17:00:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 17:00:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 17:00:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 17:00:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 17:00:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 17:00:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-21 17:00:32,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:32,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280935960] [2021-12-21 17:00:32,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280935960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:32,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:32,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:00:32,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759734015] [2021-12-21 17:00:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:32,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:00:32,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:00:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:32,407 INFO L87 Difference]: Start difference. First operand 10533 states and 14388 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:00:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:38,459 INFO L93 Difference]: Finished difference Result 25790 states and 35387 transitions. [2021-12-21 17:00:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 17:00:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2021-12-21 17:00:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:38,515 INFO L225 Difference]: With dead ends: 25790 [2021-12-21 17:00:38,516 INFO L226 Difference]: Without dead ends: 15991 [2021-12-21 17:00:38,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 17:00:38,554 INFO L933 BasicCegarLoop]: 3872 mSDtfsCounter, 2945 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 2191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 7399 SdHoareTripleChecker+Invalid, 5117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2191 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:38,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3205 Valid, 7399 Invalid, 5117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2191 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-21 17:00:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15991 states. [2021-12-21 17:00:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15991 to 15296. [2021-12-21 17:00:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15296 states, 10409 states have (on average 1.2483427802862908) internal successors, (12994), 10726 states have internal predecessors, (12994), 3951 states have call successors, (3951), 940 states have call predecessors, (3951), 933 states have return successors, (3950), 3907 states have call predecessors, (3950), 3947 states have call successors, (3950) [2021-12-21 17:00:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15296 states to 15296 states and 20895 transitions. [2021-12-21 17:00:39,093 INFO L78 Accepts]: Start accepts. Automaton has 15296 states and 20895 transitions. Word has length 199 [2021-12-21 17:00:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:39,093 INFO L470 AbstractCegarLoop]: Abstraction has 15296 states and 20895 transitions. [2021-12-21 17:00:39,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-21 17:00:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15296 states and 20895 transitions. [2021-12-21 17:00:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-21 17:00:39,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:39,099 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:39,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:00:39,099 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)] === [2021-12-21 17:00:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1814600550, now seen corresponding path program 1 times [2021-12-21 17:00:39,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:39,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147325307] [2021-12-21 17:00:39,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:39,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 17:00:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 17:00:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:00:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:00:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:00:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:00:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 17:00:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-21 17:00:39,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:39,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147325307] [2021-12-21 17:00:39,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147325307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:39,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:39,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:00:39,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685809857] [2021-12-21 17:00:39,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:39,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:00:39,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:39,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:00:39,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:00:39,327 INFO L87 Difference]: Start difference. First operand 15296 states and 20895 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 17:00:41,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:41,580 INFO L93 Difference]: Finished difference Result 15987 states and 21983 transitions. [2021-12-21 17:00:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:00:41,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2021-12-21 17:00:41,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:41,637 INFO L225 Difference]: With dead ends: 15987 [2021-12-21 17:00:41,637 INFO L226 Difference]: Without dead ends: 15147 [2021-12-21 17:00:41,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:00:41,648 INFO L933 BasicCegarLoop]: 2073 mSDtfsCounter, 2343 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 5977 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:41,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2578 Valid, 5977 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 17:00:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15147 states. [2021-12-21 17:00:42,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15147 to 14481. [2021-12-21 17:00:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14481 states, 9858 states have (on average 1.2474132684114425) internal successors, (12297), 10149 states have internal predecessors, (12297), 3738 states have call successors, (3738), 886 states have call predecessors, (3738), 883 states have return successors, (3741), 3709 states have call predecessors, (3741), 3738 states have call successors, (3741) [2021-12-21 17:00:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14481 states to 14481 states and 19776 transitions. [2021-12-21 17:00:42,171 INFO L78 Accepts]: Start accepts. Automaton has 14481 states and 19776 transitions. Word has length 187 [2021-12-21 17:00:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:42,171 INFO L470 AbstractCegarLoop]: Abstraction has 14481 states and 19776 transitions. [2021-12-21 17:00:42,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 17:00:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 14481 states and 19776 transitions. [2021-12-21 17:00:42,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-21 17:00:42,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:42,176 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:42,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:00:42,176 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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)] === [2021-12-21 17:00:42,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:42,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1563696680, now seen corresponding path program 1 times [2021-12-21 17:00:42,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:42,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181775998] [2021-12-21 17:00:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:42,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:00:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:00:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 17:00:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:00:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 17:00:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-12-21 17:00:42,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:42,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181775998] [2021-12-21 17:00:42,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181775998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:42,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:42,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:42,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537888350] [2021-12-21 17:00:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:42,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:42,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:42,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:42,418 INFO L87 Difference]: Start difference. First operand 14481 states and 19776 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:00:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:45,140 INFO L93 Difference]: Finished difference Result 34766 states and 47723 transitions. [2021-12-21 17:00:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-12-21 17:00:45,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:45,231 INFO L225 Difference]: With dead ends: 34766 [2021-12-21 17:00:45,232 INFO L226 Difference]: Without dead ends: 21019 [2021-12-21 17:00:45,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:45,400 INFO L933 BasicCegarLoop]: 3462 mSDtfsCounter, 1849 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 6234 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:45,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2165 Valid, 6234 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 17:00:45,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21019 states. [2021-12-21 17:00:46,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21019 to 20089. [2021-12-21 17:00:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20089 states, 13717 states have (on average 1.2486695341546985) internal successors, (17128), 14115 states have internal predecessors, (17128), 5142 states have call successors, (5142), 1231 states have call predecessors, (5142), 1228 states have return successors, (5145), 5111 states have call predecessors, (5145), 5142 states have call successors, (5145) [2021-12-21 17:00:46,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20089 states to 20089 states and 27415 transitions. [2021-12-21 17:00:46,116 INFO L78 Accepts]: Start accepts. Automaton has 20089 states and 27415 transitions. Word has length 192 [2021-12-21 17:00:46,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:46,116 INFO L470 AbstractCegarLoop]: Abstraction has 20089 states and 27415 transitions. [2021-12-21 17:00:46,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 17:00:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 20089 states and 27415 transitions. [2021-12-21 17:00:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-21 17:00:46,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:46,130 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:46,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 17:00:46,130 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-12-21 17:00:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:46,130 INFO L85 PathProgramCache]: Analyzing trace with hash -167542827, now seen corresponding path program 1 times [2021-12-21 17:00:46,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:46,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566281305] [2021-12-21 17:00:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:46,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:00:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:00:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 17:00:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:00:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:00:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:00:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:00:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:00:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:00:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:00:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-21 17:00:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 17:00:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-21 17:00:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-21 17:00:46,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:46,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566281305] [2021-12-21 17:00:46,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566281305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:46,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:46,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:46,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533120203] [2021-12-21 17:00:46,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:46,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:46,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:46,344 INFO L87 Difference]: Start difference. First operand 20089 states and 27415 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 17:00:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:49,247 INFO L93 Difference]: Finished difference Result 46189 states and 63305 transitions. [2021-12-21 17:00:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2021-12-21 17:00:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:49,352 INFO L225 Difference]: With dead ends: 46189 [2021-12-21 17:00:49,352 INFO L226 Difference]: Without dead ends: 26101 [2021-12-21 17:00:49,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:49,406 INFO L933 BasicCegarLoop]: 3481 mSDtfsCounter, 1845 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:49,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2159 Valid, 6278 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:00:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26101 states. [2021-12-21 17:00:50,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26101 to 24938. [2021-12-21 17:00:50,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24938 states, 17061 states have (on average 1.2492233749487134) internal successors, (21313), 17552 states have internal predecessors, (21313), 6348 states have call successors, (6348), 1530 states have call predecessors, (6348), 1527 states have return successors, (6351), 6315 states have call predecessors, (6351), 6348 states have call successors, (6351) [2021-12-21 17:00:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24938 states to 24938 states and 34012 transitions. [2021-12-21 17:00:50,383 INFO L78 Accepts]: Start accepts. Automaton has 24938 states and 34012 transitions. Word has length 266 [2021-12-21 17:00:50,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:50,384 INFO L470 AbstractCegarLoop]: Abstraction has 24938 states and 34012 transitions. [2021-12-21 17:00:50,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 17:00:50,385 INFO L276 IsEmpty]: Start isEmpty. Operand 24938 states and 34012 transitions. [2021-12-21 17:00:50,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-21 17:00:50,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:50,398 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:50,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 17:00:50,398 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-12-21 17:00:50,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash 491988695, now seen corresponding path program 1 times [2021-12-21 17:00:50,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:50,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727666932] [2021-12-21 17:00:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:50,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:00:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:00:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 17:00:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:00:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-21 17:00:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:00:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:00:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 17:00:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:00:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:00:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-21 17:00:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 17:00:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-21 17:00:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-21 17:00:50,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:00:50,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727666932] [2021-12-21 17:00:50,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727666932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:00:50,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:00:50,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:00:50,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802115216] [2021-12-21 17:00:50,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:00:50,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:00:50,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:00:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:00:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:00:50,603 INFO L87 Difference]: Start difference. First operand 24938 states and 34012 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 17:00:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:00:53,704 INFO L93 Difference]: Finished difference Result 56801 states and 77761 transitions. [2021-12-21 17:00:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:00:53,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2021-12-21 17:00:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:00:53,827 INFO L225 Difference]: With dead ends: 56801 [2021-12-21 17:00:53,827 INFO L226 Difference]: Without dead ends: 32597 [2021-12-21 17:00:53,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:00:53,900 INFO L933 BasicCegarLoop]: 3497 mSDtfsCounter, 2136 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 903 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:00:53,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 5998 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:00:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32597 states. [2021-12-21 17:00:54,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32597 to 31068. [2021-12-21 17:00:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31068 states, 21289 states have (on average 1.2489078867020527) internal successors, (26588), 21893 states have internal predecessors, (26588), 7860 states have call successors, (7860), 1920 states have call predecessors, (7860), 1917 states have return successors, (7863), 7825 states have call predecessors, (7863), 7860 states have call successors, (7863) [2021-12-21 17:00:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31068 states to 31068 states and 42311 transitions. [2021-12-21 17:00:55,117 INFO L78 Accepts]: Start accepts. Automaton has 31068 states and 42311 transitions. Word has length 266 [2021-12-21 17:00:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:00:55,117 INFO L470 AbstractCegarLoop]: Abstraction has 31068 states and 42311 transitions. [2021-12-21 17:00:55,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-21 17:00:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 31068 states and 42311 transitions. [2021-12-21 17:00:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-21 17:00:55,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:00:55,146 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:00:55,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-21 17:00:55,147 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-12-21 17:00:55,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:00:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1223514187, now seen corresponding path program 1 times [2021-12-21 17:00:55,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:00:55,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807153780] [2021-12-21 17:00:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:00:55,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:00:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:00:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:00:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:00:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:00:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:00:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:00:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:00:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:00:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 17:00:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 17:00:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:00:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:00:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:00:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 17:00:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:00:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:00:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150