./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.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 fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:51:09,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:51:09,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:51:09,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:51:09,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:51:09,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:51:09,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:51:09,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:51:09,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:51:09,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:51:09,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:51:09,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:51:09,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:51:09,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:51:09,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:51:09,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:51:09,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:51:09,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:51:09,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:51:09,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:51:09,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:51:09,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:51:09,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:51:09,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:51:09,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:51:09,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:51:09,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:51:09,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:51:09,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:51:09,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:51:09,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:51:09,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:51:09,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:51:09,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:51:09,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:51:09,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:51:09,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:51:09,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:51:09,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:51:09,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:51:09,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:51:09,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:51:09,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:51:09,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:51:09,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:51:09,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:51:09,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:51:09,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:51:09,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:51:09,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:51:09,737 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:51:09,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:51:09,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:51:09,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:51:09,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:51:09,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:51:09,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:51:09,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:51:09,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:51:09,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:51:09,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:51:09,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:51:09,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:51:09,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:51:09,741 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:51:09,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:51:09,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:51:09,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:51:09,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 [2021-12-16 04:51:09,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:51:09,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:51:09,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:51:09,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:51:09,980 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:51:09,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-16 04:51:10,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee637dd2/a4e5aa0be65d4c64a481aaba88568e60/FLAG42f054b3d [2021-12-16 04:51:10,653 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:51:10,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-16 04:51:10,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee637dd2/a4e5aa0be65d4c64a481aaba88568e60/FLAG42f054b3d [2021-12-16 04:51:11,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee637dd2/a4e5aa0be65d4c64a481aaba88568e60 [2021-12-16 04:51:11,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:51:11,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:51:11,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:51:11,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:51:11,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:51:11,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:51:11" (1/1) ... [2021-12-16 04:51:11,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c3f173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:11, skipping insertion in model container [2021-12-16 04:51:11,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:51:11" (1/1) ... [2021-12-16 04:51:11,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:51:11,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:51:12,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2021-12-16 04:51:12,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2021-12-16 04:51:12,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2021-12-16 04:51:12,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2021-12-16 04:51:12,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:51:13,010 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:51:13,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2021-12-16 04:51:13,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2021-12-16 04:51:13,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2021-12-16 04:51:13,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2021-12-16 04:51:13,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:51:13,456 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:51:13,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13 WrapperNode [2021-12-16 04:51:13,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:51:13,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:51:13,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:51:13,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:51:13,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,659 INFO L137 Inliner]: procedures = 411, calls = 1991, calls flagged for inlining = 210, calls inlined = 187, statements flattened = 4406 [2021-12-16 04:51:13,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:51:13,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:51:13,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:51:13,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:51:13,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:51:13,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:51:13,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:51:13,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:51:13,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (1/1) ... [2021-12-16 04:51:13,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:51:13,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:51:13,895 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) [2021-12-16 04:51:13,913 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 [2021-12-16 04:51:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_probe [2021-12-16 04:51:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_probe [2021-12-16 04:51:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:51:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:51:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:51:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:51:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 04:51:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 04:51:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 04:51:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-16 04:51:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 04:51:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 04:51:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-16 04:51:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-16 04:51:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure __dnet_set_hwaddr [2021-12-16 04:51:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __dnet_set_hwaddr [2021-12-16 04:51:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 04:51:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-16 04:51:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 04:51:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 04:51:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-16 04:51:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-16 04:51:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-16 04:51:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-16 04:51:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 04:51:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 04:51:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:51:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 04:51:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 04:51:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:51:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:51:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:51:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-16 04:51:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-16 04:51:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:51:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-16 04:51:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-16 04:51:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:51:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-16 04:51:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-16 04:51:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_reset_hw [2021-12-16 04:51:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_reset_hw [2021-12-16 04:51:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 04:51:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-16 04:51:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:51:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-16 04:51:13,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-16 04:51:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-16 04:51:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-16 04:51:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-16 04:51:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-16 04:51:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:51:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-16 04:51:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-16 04:51:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 04:51:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 04:51:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:51:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:51:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:51:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:51:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:51:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:51:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:51:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-16 04:51:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-16 04:51:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:51:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:51:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-16 04:51:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-16 04:51:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 04:51:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 04:51:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 04:51:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 04:51:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 04:51:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 04:51:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:51:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:51:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 04:51:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 04:51:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-12-16 04:51:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-12-16 04:51:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:51:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:51:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:51:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:51:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-12-16 04:51:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-12-16 04:51:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 04:51:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-16 04:51:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dnet [2021-12-16 04:51:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dnet [2021-12-16 04:51:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:51:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:51:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_readw_mac [2021-12-16 04:51:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_readw_mac [2021-12-16 04:51:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:51:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:51:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:51:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-16 04:51:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-16 04:51:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:51:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:51:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-16 04:51:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-16 04:51:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-16 04:51:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-16 04:51:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_close [2021-12-16 04:51:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_close [2021-12-16 04:51:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2021-12-16 04:51:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2021-12-16 04:51:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_handle_link_change [2021-12-16 04:51:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_handle_link_change [2021-12-16 04:51:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-16 04:51:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-16 04:51:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:51:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:51:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_writew_mac [2021-12-16 04:51:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_writew_mac [2021-12-16 04:51:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:51:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:51:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:51:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:51:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:51:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:51:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:51:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_remove [2021-12-16 04:51:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_remove [2021-12-16 04:51:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-16 04:51:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-16 04:51:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_open [2021-12-16 04:51:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_open [2021-12-16 04:51:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure phy_connect [2021-12-16 04:51:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_connect [2021-12-16 04:51:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 04:51:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 04:51:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 04:51:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 04:51:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:51:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-16 04:51:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-16 04:51:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-16 04:51:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-16 04:51:14,533 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:51:14,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:51:15,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:51:18,816 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-16 04:51:18,860 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:51:18,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:51:18,875 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:51:18,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:51:18 BoogieIcfgContainer [2021-12-16 04:51:18,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:51:18,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:51:18,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:51:18,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:51:18,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:51:11" (1/3) ... [2021-12-16 04:51:18,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91b6576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:51:18, skipping insertion in model container [2021-12-16 04:51:18,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:51:13" (2/3) ... [2021-12-16 04:51:18,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91b6576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:51:18, skipping insertion in model container [2021-12-16 04:51:18,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:51:18" (3/3) ... [2021-12-16 04:51:18,885 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-16 04:51:18,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:51:18,889 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 04:51:18,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:51:18,944 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 [2021-12-16 04:51:18,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 04:51:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 977 states have (on average 1.2620266120777892) internal successors, (1233), 990 states have internal predecessors, (1233), 324 states have call successors, (324), 63 states have call predecessors, (324), 62 states have return successors, (317), 315 states have call predecessors, (317), 317 states have call successors, (317) [2021-12-16 04:51:19,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-16 04:51:19,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:19,012 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:19,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:19,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1829789727, now seen corresponding path program 1 times [2021-12-16 04:51:19,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:19,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808284885] [2021-12-16 04:51:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:19,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 04:51:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-16 04:51:19,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:19,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808284885] [2021-12-16 04:51:19,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808284885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:19,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:19,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:19,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152379020] [2021-12-16 04:51:19,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:19,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:19,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:19,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:19,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:19,714 INFO L87 Difference]: Start difference. First operand has 1366 states, 977 states have (on average 1.2620266120777892) internal successors, (1233), 990 states have internal predecessors, (1233), 324 states have call successors, (324), 63 states have call predecessors, (324), 62 states have return successors, (317), 315 states have call predecessors, (317), 317 states have call successors, (317) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:22,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:24,327 INFO L93 Difference]: Finished difference Result 3992 states and 5626 transitions. [2021-12-16 04:51:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:24,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 134 [2021-12-16 04:51:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:24,355 INFO L225 Difference]: With dead ends: 3992 [2021-12-16 04:51:24,355 INFO L226 Difference]: Without dead ends: 2639 [2021-12-16 04:51:24,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:24,367 INFO L933 BasicCegarLoop]: 2018 mSDtfsCounter, 2134 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 830 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:24,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2421 Valid, 4334 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [830 Valid, 1053 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-12-16 04:51:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2021-12-16 04:51:24,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2611. [2021-12-16 04:51:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 1888 states have (on average 1.257415254237288) internal successors, (2374), 1912 states have internal predecessors, (2374), 599 states have call successors, (599), 122 states have call predecessors, (599), 121 states have return successors, (596), 592 states have call predecessors, (596), 596 states have call successors, (596) [2021-12-16 04:51:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3569 transitions. [2021-12-16 04:51:24,506 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3569 transitions. Word has length 134 [2021-12-16 04:51:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:24,507 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3569 transitions. [2021-12-16 04:51:24,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3569 transitions. [2021-12-16 04:51:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:51:24,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:24,510 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:24,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:51:24,510 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash 493076079, now seen corresponding path program 1 times [2021-12-16 04:51:24,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:24,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472818905] [2021-12-16 04:51:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:24,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 04:51:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-16 04:51:24,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472818905] [2021-12-16 04:51:24,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472818905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:24,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:24,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:24,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657757082] [2021-12-16 04:51:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:24,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:24,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:24,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:24,748 INFO L87 Difference]: Start difference. First operand 2611 states and 3569 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:27,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:30,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:31,041 INFO L93 Difference]: Finished difference Result 7633 states and 10625 transitions. [2021-12-16 04:51:31,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:31,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2021-12-16 04:51:31,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:31,085 INFO L225 Difference]: With dead ends: 7633 [2021-12-16 04:51:31,085 INFO L226 Difference]: Without dead ends: 5047 [2021-12-16 04:51:31,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:31,096 INFO L933 BasicCegarLoop]: 2157 mSDtfsCounter, 2038 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 842 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 4596 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:31,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2276 Valid, 4596 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1039 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-12-16 04:51:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2021-12-16 04:51:31,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 4992. [2021-12-16 04:51:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 3630 states have (on average 1.2575757575757576) internal successors, (4565), 3684 states have internal predecessors, (4565), 1114 states have call successors, (1114), 242 states have call predecessors, (1114), 245 states have return successors, (1303), 1095 states have call predecessors, (1303), 1111 states have call successors, (1303) [2021-12-16 04:51:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6982 transitions. [2021-12-16 04:51:31,289 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6982 transitions. Word has length 138 [2021-12-16 04:51:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:31,290 INFO L470 AbstractCegarLoop]: Abstraction has 4992 states and 6982 transitions. [2021-12-16 04:51:31,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6982 transitions. [2021-12-16 04:51:31,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-16 04:51:31,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:31,293 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:31,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:51:31,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1667436356, now seen corresponding path program 1 times [2021-12-16 04:51:31,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:31,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524158570] [2021-12-16 04:51:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:31,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 04:51:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-16 04:51:31,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:31,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524158570] [2021-12-16 04:51:31,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524158570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:31,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:31,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:31,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962163975] [2021-12-16 04:51:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:31,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:31,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:31,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:31,595 INFO L87 Difference]: Start difference. First operand 4992 states and 6982 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:34,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:36,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:38,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:38,227 INFO L93 Difference]: Finished difference Result 14132 states and 19680 transitions. [2021-12-16 04:51:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 145 [2021-12-16 04:51:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:38,270 INFO L225 Difference]: With dead ends: 14132 [2021-12-16 04:51:38,270 INFO L226 Difference]: Without dead ends: 9165 [2021-12-16 04:51:38,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:38,291 INFO L933 BasicCegarLoop]: 2075 mSDtfsCounter, 1718 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 799 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:38,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1977 Valid, 4257 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1163 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-12-16 04:51:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2021-12-16 04:51:38,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 9086. [2021-12-16 04:51:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 6558 states have (on average 1.2447392497712717) internal successors, (8163), 6670 states have internal predecessors, (8163), 2052 states have call successors, (2052), 470 states have call predecessors, (2052), 473 states have return successors, (2249), 2005 states have call predecessors, (2249), 2049 states have call successors, (2249) [2021-12-16 04:51:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 12464 transitions. [2021-12-16 04:51:38,582 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 12464 transitions. Word has length 145 [2021-12-16 04:51:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:38,583 INFO L470 AbstractCegarLoop]: Abstraction has 9086 states and 12464 transitions. [2021-12-16 04:51:38,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 12464 transitions. [2021-12-16 04:51:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-16 04:51:38,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:38,590 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:38,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:51:38,590 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash -656611999, now seen corresponding path program 1 times [2021-12-16 04:51:38,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:38,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516602970] [2021-12-16 04:51:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:38,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 04:51:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-16 04:51:38,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:38,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516602970] [2021-12-16 04:51:38,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516602970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:38,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:38,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:38,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132689661] [2021-12-16 04:51:38,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:38,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:38,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:38,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:38,831 INFO L87 Difference]: Start difference. First operand 9086 states and 12464 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:42,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:43,357 INFO L93 Difference]: Finished difference Result 24640 states and 34066 transitions. [2021-12-16 04:51:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 153 [2021-12-16 04:51:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:43,529 INFO L225 Difference]: With dead ends: 24640 [2021-12-16 04:51:43,543 INFO L226 Difference]: Without dead ends: 15579 [2021-12-16 04:51:43,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:43,586 INFO L933 BasicCegarLoop]: 1944 mSDtfsCounter, 1757 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 832 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:43,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 4227 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1034 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-12-16 04:51:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15579 states. [2021-12-16 04:51:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15579 to 15452. [2021-12-16 04:51:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 11066 states have (on average 1.2343213446593169) internal successors, (13659), 11278 states have internal predecessors, (13659), 3492 states have call successors, (3492), 896 states have call predecessors, (3492), 891 states have return successors, (4189), 3369 states have call predecessors, (4189), 3489 states have call successors, (4189) [2021-12-16 04:51:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 21340 transitions. [2021-12-16 04:51:44,249 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 21340 transitions. Word has length 153 [2021-12-16 04:51:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:44,250 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 21340 transitions. [2021-12-16 04:51:44,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-16 04:51:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 21340 transitions. [2021-12-16 04:51:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-16 04:51:44,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:44,254 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 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] [2021-12-16 04:51:44,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:51:44,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:44,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2109483455, now seen corresponding path program 1 times [2021-12-16 04:51:44,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:44,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218080568] [2021-12-16 04:51:44,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:44,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:51:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 04:51:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 04:51:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-12-16 04:51:44,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:44,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218080568] [2021-12-16 04:51:44,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218080568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:44,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:44,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:44,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43647669] [2021-12-16 04:51:44,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:44,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:44,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:44,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:44,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:44,524 INFO L87 Difference]: Start difference. First operand 15452 states and 21340 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 04:51:48,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:50,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:51,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:51,112 INFO L93 Difference]: Finished difference Result 29258 states and 40524 transitions. [2021-12-16 04:51:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:51,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 169 [2021-12-16 04:51:51,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:51,168 INFO L225 Difference]: With dead ends: 29258 [2021-12-16 04:51:51,168 INFO L226 Difference]: Without dead ends: 13831 [2021-12-16 04:51:51,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:51,211 INFO L933 BasicCegarLoop]: 2983 mSDtfsCounter, 1751 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 647 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 5721 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:51,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2027 Valid, 5721 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1120 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-12-16 04:51:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13831 states. [2021-12-16 04:51:51,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13831 to 13739. [2021-12-16 04:51:51,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13739 states, 9943 states have (on average 1.2314190888061953) internal successors, (12244), 10141 states have internal predecessors, (12244), 3002 states have call successors, (3002), 793 states have call predecessors, (3002), 791 states have return successors, (3671), 2886 states have call predecessors, (3671), 2999 states have call successors, (3671) [2021-12-16 04:51:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13739 states to 13739 states and 18917 transitions. [2021-12-16 04:51:51,848 INFO L78 Accepts]: Start accepts. Automaton has 13739 states and 18917 transitions. Word has length 169 [2021-12-16 04:51:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:51,849 INFO L470 AbstractCegarLoop]: Abstraction has 13739 states and 18917 transitions. [2021-12-16 04:51:51,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 04:51:51,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13739 states and 18917 transitions. [2021-12-16 04:51:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 04:51:51,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:51,851 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:51,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:51:51,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:51,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash -844179788, now seen corresponding path program 1 times [2021-12-16 04:51:51,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:51,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468527393] [2021-12-16 04:51:51,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:51,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 04:51:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 04:51:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:51:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:51:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:51:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-16 04:51:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 04:51:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-16 04:51:52,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:52,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468527393] [2021-12-16 04:51:52,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468527393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:52,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:52,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:51:52,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163947933] [2021-12-16 04:51:52,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:52,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:51:52,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:52,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:51:52,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:51:52,074 INFO L87 Difference]: Start difference. First operand 13739 states and 18917 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-16 04:51:55,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:51:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:51:56,544 INFO L93 Difference]: Finished difference Result 40460 states and 55934 transitions. [2021-12-16 04:51:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:51:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2021-12-16 04:51:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:51:56,654 INFO L225 Difference]: With dead ends: 40460 [2021-12-16 04:51:56,655 INFO L226 Difference]: Without dead ends: 26815 [2021-12-16 04:51:56,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:51:56,703 INFO L933 BasicCegarLoop]: 2073 mSDtfsCounter, 2103 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 844 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:51:56,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2385 Valid, 4422 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-12-16 04:51:56,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26815 states. [2021-12-16 04:51:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26815 to 26673. [2021-12-16 04:51:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26673 states, 19350 states have (on average 1.23343669250646) internal successors, (23867), 19704 states have internal predecessors, (23867), 5787 states have call successors, (5787), 1536 states have call predecessors, (5787), 1533 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-16 04:51:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26673 states to 26673 states and 36782 transitions. [2021-12-16 04:51:57,595 INFO L78 Accepts]: Start accepts. Automaton has 26673 states and 36782 transitions. Word has length 186 [2021-12-16 04:51:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:51:57,595 INFO L470 AbstractCegarLoop]: Abstraction has 26673 states and 36782 transitions. [2021-12-16 04:51:57,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-16 04:51:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 26673 states and 36782 transitions. [2021-12-16 04:51:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-16 04:51:57,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:51:57,598 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:51:57,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:51:57,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:51:57,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:51:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash -421477962, now seen corresponding path program 1 times [2021-12-16 04:51:57,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:51:57,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662173307] [2021-12-16 04:51:57,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:51:57,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:51:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:51:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:51:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:51:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:51:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:51:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:51:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:51:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:51:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:51:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:51:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:51:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 04:51:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 04:51:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:51:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:51:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:51:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:51:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-16 04:51:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 04:51:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:51:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-16 04:51:58,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:51:58,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662173307] [2021-12-16 04:51:58,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662173307] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:51:58,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:51:58,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:51:58,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758287590] [2021-12-16 04:51:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:51:58,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:51:58,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:51:58,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:51:58,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:51:58,175 INFO L87 Difference]: Start difference. First operand 26673 states and 36782 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-12-16 04:52:01,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:52:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:52:02,282 INFO L93 Difference]: Finished difference Result 26799 states and 37085 transitions. [2021-12-16 04:52:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:52:02,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 186 [2021-12-16 04:52:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:52:02,437 INFO L225 Difference]: With dead ends: 26799 [2021-12-16 04:52:02,437 INFO L226 Difference]: Without dead ends: 26797 [2021-12-16 04:52:02,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:52:02,450 INFO L933 BasicCegarLoop]: 1751 mSDtfsCounter, 1812 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 567 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:52:02,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2015 Valid, 5466 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-16 04:52:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26797 states. [2021-12-16 04:52:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26797 to 26677. [2021-12-16 04:52:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26677 states, 19353 states have (on average 1.2334005063814395) internal successors, (23870), 19707 states have internal predecessors, (23870), 5787 states have call successors, (5787), 1537 states have call predecessors, (5787), 1534 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-16 04:52:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26677 states to 26677 states and 36785 transitions. [2021-12-16 04:52:03,279 INFO L78 Accepts]: Start accepts. Automaton has 26677 states and 36785 transitions. Word has length 186 [2021-12-16 04:52:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:52:03,282 INFO L470 AbstractCegarLoop]: Abstraction has 26677 states and 36785 transitions. [2021-12-16 04:52:03,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-12-16 04:52:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 26677 states and 36785 transitions. [2021-12-16 04:52:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-16 04:52:03,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:52:03,285 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:52:03,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 04:52:03,285 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:52:03,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:52:03,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2049601018, now seen corresponding path program 1 times [2021-12-16 04:52:03,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:52:03,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796298613] [2021-12-16 04:52:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:52:03,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:52:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:52:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:52:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:52:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:52:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:52:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:52:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:52:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:52:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:52:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:52:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:52:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 04:52:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 04:52:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:52:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:52:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:52:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-16 04:52:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 04:52:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-16 04:52:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-16 04:52:03,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:52:03,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796298613] [2021-12-16 04:52:03,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796298613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:52:03,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:52:03,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:52:03,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123673171] [2021-12-16 04:52:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:52:03,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:52:03,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:52:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:52:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:52:03,608 INFO L87 Difference]: Start difference. First operand 26677 states and 36785 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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) [2021-12-16 04:52:07,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:52:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:52:07,865 INFO L93 Difference]: Finished difference Result 26803 states and 37088 transitions. [2021-12-16 04:52:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:52:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 191 [2021-12-16 04:52:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:52:07,960 INFO L225 Difference]: With dead ends: 26803 [2021-12-16 04:52:07,960 INFO L226 Difference]: Without dead ends: 26801 [2021-12-16 04:52:07,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:52:07,976 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 566 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:52:07,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-16 04:52:07,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26801 states. [2021-12-16 04:52:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26801 to 26681. [2021-12-16 04:52:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26681 states, 19356 states have (on average 1.2333643314734448) internal successors, (23873), 19710 states have internal predecessors, (23873), 5787 states have call successors, (5787), 1538 states have call predecessors, (5787), 1535 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-16 04:52:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26681 states to 26681 states and 36788 transitions. [2021-12-16 04:52:08,834 INFO L78 Accepts]: Start accepts. Automaton has 26681 states and 36788 transitions. Word has length 191 [2021-12-16 04:52:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:52:08,835 INFO L470 AbstractCegarLoop]: Abstraction has 26681 states and 36788 transitions. [2021-12-16 04:52:08,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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) [2021-12-16 04:52:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 26681 states and 36788 transitions. [2021-12-16 04:52:08,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-16 04:52:08,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:52:08,837 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:52:08,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 04:52:08,838 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-16 04:52:08,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:52:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2110594058, now seen corresponding path program 1 times [2021-12-16 04:52:08,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:52:08,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454530569] [2021-12-16 04:52:08,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:52:08,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:52:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 04:52:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:52:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 04:52:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 04:52:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 04:52:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:52:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 04:52:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:52:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 04:52:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:52:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:52:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 04:52:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 04:52:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:52:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:52:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:52:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:52:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-16 04:52:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-16 04:52:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-16 04:52:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-16 04:52:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:52:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-16 04:52:09,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:52:09,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454530569] [2021-12-16 04:52:09,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454530569] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:52:09,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:52:09,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:52:09,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818168894] [2021-12-16 04:52:09,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:52:09,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:52:09,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:52:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:52:09,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:52:09,120 INFO L87 Difference]: Start difference. First operand 26681 states and 36788 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)