./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:02:59,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:02:59,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:02:59,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:02:59,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:02:59,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:02:59,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:02:59,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:02:59,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:02:59,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:02:59,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:02:59,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:02:59,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:02:59,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:02:59,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:02:59,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:02:59,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:02:59,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:02:59,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:02:59,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:02:59,639 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:02:59,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:02:59,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:02:59,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:02:59,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:02:59,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:02:59,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:02:59,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:02:59,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:02:59,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:02:59,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:02:59,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:02:59,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:02:59,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:02:59,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:02:59,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:02:59,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:02:59,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:02:59,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:02:59,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:02:59,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:02:59,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:02:59,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:02:59,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:02:59,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:02:59,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:02:59,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:02:59,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:02:59,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:02:59,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:02:59,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:02:59,682 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:02:59,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:02:59,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:02:59,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:02:59,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:02:59,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:02:59,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:02:59,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:02:59,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:02:59,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:02:59,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:02:59,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:02:59,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2022-07-12 16:02:59,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:02:59,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:02:59,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:02:59,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:02:59,868 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:02:59,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-12 16:02:59,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381c534b7/32bafefedaf941f5bd65c7e4cbf4b70f/FLAGc44229c77 [2022-07-12 16:03:00,511 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:03:00,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-12 16:03:00,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381c534b7/32bafefedaf941f5bd65c7e4cbf4b70f/FLAGc44229c77 [2022-07-12 16:03:00,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/381c534b7/32bafefedaf941f5bd65c7e4cbf4b70f [2022-07-12 16:03:00,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:03:00,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:03:00,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:03:00,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:03:00,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:03:00,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:03:00" (1/1) ... [2022-07-12 16:03:00,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315009e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:00, skipping insertion in model container [2022-07-12 16:03:00,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:03:00" (1/1) ... [2022-07-12 16:03:00,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:03:00,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:03:02,173 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-07-12 16:03:02,176 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-07-12 16:03:02,177 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-07-12 16:03:02,177 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-07-12 16:03:02,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:03:02,234 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:03:02,533 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-07-12 16:03:02,533 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-07-12 16:03:02,534 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-07-12 16:03:02,534 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-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-07-12 16:03:02,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:03:02,649 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:03:02,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02 WrapperNode [2022-07-12 16:03:02,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:03:02,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:03:02,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:03:02,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:03:02,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,851 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4121 [2022-07-12 16:03:02,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:03:02,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:03:02,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:03:02,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:03:02,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:02,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:03,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:03,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:03,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:03:03,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:03:03,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:03:03,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:03:03,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (1/1) ... [2022-07-12 16:03:03,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:03:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:03:03,088 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) [2022-07-12 16:03:03,104 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 [2022-07-12 16:03:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 16:03:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 16:03:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:03:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:03:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 16:03:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 16:03:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 16:03:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 16:03:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:03:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:03:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:03:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:03:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:03:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:03:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:03:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:03:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 16:03:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 16:03:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 16:03:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 16:03:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-12 16:03:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-12 16:03:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2022-07-12 16:03:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2022-07-12 16:03:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 16:03:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 16:03:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:03:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:03:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 16:03:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 16:03:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 16:03:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 16:03:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:03:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:03:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:03:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:03:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-12 16:03:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-12 16:03:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:03:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2022-07-12 16:03:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2022-07-12 16:03:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:03:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:03:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 16:03:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:03:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:03:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 16:03:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:03:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:03:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2022-07-12 16:03:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2022-07-12 16:03:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-12 16:03:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-12 16:03:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 16:03:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-12 16:03:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-07-12 16:03:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:03:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:03:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:03:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:03:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:03:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:03:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:03:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:03:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:03:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:03:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 16:03:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 16:03:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 16:03:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 16:03:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-12 16:03:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-12 16:03:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:03:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:03:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2022-07-12 16:03:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2022-07-12 16:03:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:03:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:03:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:03:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:03:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:03:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:03:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-12 16:03:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-12 16:03:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:03:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:03:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:03:03,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:03:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:03:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:03:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:03:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 16:03:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 16:03:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:03:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:03:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 16:03:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 16:03:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:03:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:03:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-12 16:03:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-12 16:03:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:03:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:03:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2022-07-12 16:03:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2022-07-12 16:03:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2022-07-12 16:03:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2022-07-12 16:03:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:03:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:03:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:03:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:03:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:03:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:03:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 16:03:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 16:03:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-12 16:03:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-07-12 16:03:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:03:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:03:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 16:03:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 16:03:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-12 16:03:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-12 16:03:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:03:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:03:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 16:03:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 16:03:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-12 16:03:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-12 16:03:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-12 16:03:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 16:03:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 16:03:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 16:03:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 16:03:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:03:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:03:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:03:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:03:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:03:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2022-07-12 16:03:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2022-07-12 16:03:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:03:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:03:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2022-07-12 16:03:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-12 16:03:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2022-07-12 16:03:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-12 16:03:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:03:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:03:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-12 16:03:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-12 16:03:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2022-07-12 16:03:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2022-07-12 16:03:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:03:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:03:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 16:03:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 16:03:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 16:03:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 16:03:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2022-07-12 16:03:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2022-07-12 16:03:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 16:03:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:03:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:03:03,656 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:03:03,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:03:03,935 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:03:05,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:03:05,497 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:03:05,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:03:05,513 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 16:03:05,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:03:05 BoogieIcfgContainer [2022-07-12 16:03:05,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:03:05,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:03:05,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:03:05,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:03:05,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:03:00" (1/3) ... [2022-07-12 16:03:05,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7016d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:03:05, skipping insertion in model container [2022-07-12 16:03:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:03:02" (2/3) ... [2022-07-12 16:03:05,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7016d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:03:05, skipping insertion in model container [2022-07-12 16:03:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:03:05" (3/3) ... [2022-07-12 16:03:05,524 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-07-12 16:03:05,534 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:03:05,534 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:03:05,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:03:05,623 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@45c522a6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17263578 [2022-07-12 16:03:05,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:03:05,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2022-07-12 16:03:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 16:03:05,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:05,656 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:05,657 INFO L420 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)] === [2022-07-12 16:03:05,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:05,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1886584523, now seen corresponding path program 1 times [2022-07-12 16:03:05,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:05,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92940230] [2022-07-12 16:03:05,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:05,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:03:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 16:03:06,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:06,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92940230] [2022-07-12 16:03:06,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92940230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:06,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:06,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:06,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898627522] [2022-07-12 16:03:06,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:06,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:06,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:06,275 INFO L87 Difference]: Start difference. First operand has 1521 states, 1050 states have (on average 1.302857142857143) internal successors, (1368), 1073 states have internal predecessors, (1368), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:09,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:09,260 INFO L93 Difference]: Finished difference Result 4680 states and 6784 transitions. [2022-07-12 16:03:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-07-12 16:03:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:09,292 INFO L225 Difference]: With dead ends: 4680 [2022-07-12 16:03:09,292 INFO L226 Difference]: Without dead ends: 3172 [2022-07-12 16:03:09,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:09,307 INFO L413 NwaCegarLoop]: 2173 mSDtfsCounter, 3026 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:09,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3389 Valid, 4051 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1319 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 16:03:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-07-12 16:03:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2898. [2022-07-12 16:03:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2017 states have (on average 1.2850768468021814) internal successors, (2592), 2062 states have internal predecessors, (2592), 726 states have call successors, (726), 153 states have call predecessors, (726), 152 states have return successors, (722), 710 states have call predecessors, (722), 722 states have call successors, (722) [2022-07-12 16:03:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 4040 transitions. [2022-07-12 16:03:09,488 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 4040 transitions. Word has length 127 [2022-07-12 16:03:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:09,488 INFO L495 AbstractCegarLoop]: Abstraction has 2898 states and 4040 transitions. [2022-07-12 16:03:09,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 4040 transitions. [2022-07-12 16:03:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 16:03:09,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:09,492 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:09,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 16:03:09,492 INFO L420 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)] === [2022-07-12 16:03:09,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1832228625, now seen corresponding path program 1 times [2022-07-12 16:03:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:09,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417720375] [2022-07-12 16:03:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:09,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 16:03:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 16:03:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 16:03:09,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:09,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417720375] [2022-07-12 16:03:09,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417720375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:09,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:09,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:09,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903163132] [2022-07-12 16:03:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:09,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:09,685 INFO L87 Difference]: Start difference. First operand 2898 states and 4040 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, (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) [2022-07-12 16:03:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:12,182 INFO L93 Difference]: Finished difference Result 9088 states and 12775 transitions. [2022-07-12 16:03:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:12,183 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, (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 131 [2022-07-12 16:03:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:12,226 INFO L225 Difference]: With dead ends: 9088 [2022-07-12 16:03:12,226 INFO L226 Difference]: Without dead ends: 6213 [2022-07-12 16:03:12,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:12,244 INFO L413 NwaCegarLoop]: 2177 mSDtfsCounter, 3036 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 4117 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:12,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 4117 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 16:03:12,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2022-07-12 16:03:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 5879. [2022-07-12 16:03:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 4126 states have (on average 1.2910809500727096) internal successors, (5327), 4230 states have internal predecessors, (5327), 1439 states have call successors, (1439), 304 states have call predecessors, (1439), 311 states have return successors, (1473), 1404 states have call predecessors, (1473), 1435 states have call successors, (1473) [2022-07-12 16:03:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8239 transitions. [2022-07-12 16:03:12,465 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8239 transitions. Word has length 131 [2022-07-12 16:03:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:12,465 INFO L495 AbstractCegarLoop]: Abstraction has 5879 states and 8239 transitions. [2022-07-12 16:03:12,466 INFO L496 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, (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) [2022-07-12 16:03:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8239 transitions. [2022-07-12 16:03:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 16:03:12,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:12,468 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:12,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 16:03:12,468 INFO L420 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)] === [2022-07-12 16:03:12,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash -40411670, now seen corresponding path program 1 times [2022-07-12 16:03:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:12,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881147925] [2022-07-12 16:03:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:12,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 16:03:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 16:03:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 16:03:12,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:12,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881147925] [2022-07-12 16:03:12,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881147925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:12,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:12,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128387928] [2022-07-12 16:03:12,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:12,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:12,751 INFO L87 Difference]: Start difference. First operand 5879 states and 8239 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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) [2022-07-12 16:03:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:15,425 INFO L93 Difference]: Finished difference Result 17597 states and 24704 transitions. [2022-07-12 16:03:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:15,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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 131 [2022-07-12 16:03:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:15,493 INFO L225 Difference]: With dead ends: 17597 [2022-07-12 16:03:15,494 INFO L226 Difference]: Without dead ends: 11741 [2022-07-12 16:03:15,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:15,525 INFO L413 NwaCegarLoop]: 2205 mSDtfsCounter, 2876 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 1327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1327 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:15,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3210 Valid, 4176 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1327 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 16:03:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11741 states. [2022-07-12 16:03:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11741 to 10863. [2022-07-12 16:03:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 7594 states have (on average 1.2845667632341322) internal successors, (9755), 7790 states have internal predecessors, (9755), 2669 states have call successors, (2669), 598 states have call predecessors, (2669), 597 states have return successors, (2711), 2586 states have call predecessors, (2711), 2665 states have call successors, (2711) [2022-07-12 16:03:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 15135 transitions. [2022-07-12 16:03:16,006 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 15135 transitions. Word has length 131 [2022-07-12 16:03:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:16,006 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 15135 transitions. [2022-07-12 16:03:16,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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) [2022-07-12 16:03:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 15135 transitions. [2022-07-12 16:03:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-12 16:03:16,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:16,011 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:16,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 16:03:16,011 INFO L420 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)] === [2022-07-12 16:03:16,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1974085133, now seen corresponding path program 1 times [2022-07-12 16:03:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:16,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126175075] [2022-07-12 16:03:16,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:16,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 16:03:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 16:03:16,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:16,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126175075] [2022-07-12 16:03:16,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126175075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:16,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:16,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:03:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625476742] [2022-07-12 16:03:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:16,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:03:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:03:16,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:03:16,221 INFO L87 Difference]: Start difference. First operand 10863 states and 15135 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:21,267 INFO L93 Difference]: Finished difference Result 26110 states and 36461 transitions. [2022-07-12 16:03:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 16:03:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2022-07-12 16:03:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:21,334 INFO L225 Difference]: With dead ends: 26110 [2022-07-12 16:03:21,334 INFO L226 Difference]: Without dead ends: 15270 [2022-07-12 16:03:21,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-12 16:03:21,372 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 7676 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 4320 mSolverCounterSat, 3641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8227 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 7961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3641 IncrementalHoareTripleChecker+Valid, 4320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:21,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8227 Valid, 5010 Invalid, 7961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3641 Valid, 4320 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 16:03:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2022-07-12 16:03:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13551. [2022-07-12 16:03:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 9632 states have (on average 1.288828903654485) internal successors, (12414), 9865 states have internal predecessors, (12414), 3111 states have call successors, (3111), 820 states have call predecessors, (3111), 805 states have return successors, (3127), 2987 states have call predecessors, (3127), 3107 states have call successors, (3127) [2022-07-12 16:03:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 18652 transitions. [2022-07-12 16:03:21,792 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 18652 transitions. Word has length 137 [2022-07-12 16:03:21,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:21,794 INFO L495 AbstractCegarLoop]: Abstraction has 13551 states and 18652 transitions. [2022-07-12 16:03:21,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 18652 transitions. [2022-07-12 16:03:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 16:03:21,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:21,796 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:21,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 16:03:21,796 INFO L420 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)] === [2022-07-12 16:03:21,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:21,797 INFO L85 PathProgramCache]: Analyzing trace with hash 166037984, now seen corresponding path program 1 times [2022-07-12 16:03:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:21,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15919771] [2022-07-12 16:03:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:21,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 16:03:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-12 16:03:21,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:21,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15919771] [2022-07-12 16:03:21,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15919771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:21,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:21,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:21,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330314637] [2022-07-12 16:03:21,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:21,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:21,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:21,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:21,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:21,948 INFO L87 Difference]: Start difference. First operand 13551 states and 18652 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:24,583 INFO L93 Difference]: Finished difference Result 38016 states and 52715 transitions. [2022-07-12 16:03:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2022-07-12 16:03:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:24,690 INFO L225 Difference]: With dead ends: 38016 [2022-07-12 16:03:24,691 INFO L226 Difference]: Without dead ends: 24488 [2022-07-12 16:03:24,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:24,738 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 2858 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:24,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 4042 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 16:03:24,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24488 states. [2022-07-12 16:03:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24488 to 21909. [2022-07-12 16:03:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21909 states, 15452 states have (on average 1.2848822158943827) internal successors, (19854), 15829 states have internal predecessors, (19854), 5114 states have call successors, (5114), 1377 states have call predecessors, (5114), 1340 states have return successors, (5137), 4883 states have call predecessors, (5137), 5110 states have call successors, (5137) [2022-07-12 16:03:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21909 states to 21909 states and 30105 transitions. [2022-07-12 16:03:25,505 INFO L78 Accepts]: Start accepts. Automaton has 21909 states and 30105 transitions. Word has length 140 [2022-07-12 16:03:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:25,506 INFO L495 AbstractCegarLoop]: Abstraction has 21909 states and 30105 transitions. [2022-07-12 16:03:25,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 16:03:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 21909 states and 30105 transitions. [2022-07-12 16:03:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-12 16:03:25,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:25,508 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2022-07-12 16:03:25,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 16:03:25,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-07-12 16:03:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1581152686, now seen corresponding path program 1 times [2022-07-12 16:03:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:25,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642891597] [2022-07-12 16:03:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 16:03:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 16:03:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 16:03:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-12 16:03:25,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:25,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642891597] [2022-07-12 16:03:25,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642891597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:25,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:25,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:25,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378069995] [2022-07-12 16:03:25,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:25,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:25,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:25,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:25,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:25,717 INFO L87 Difference]: Start difference. First operand 21909 states and 30105 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 16:03:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:29,300 INFO L93 Difference]: Finished difference Result 69347 states and 96115 transitions. [2022-07-12 16:03:29,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2022-07-12 16:03:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:29,481 INFO L225 Difference]: With dead ends: 69347 [2022-07-12 16:03:29,481 INFO L226 Difference]: Without dead ends: 47461 [2022-07-12 16:03:29,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:29,555 INFO L413 NwaCegarLoop]: 2359 mSDtfsCounter, 3047 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:29,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 4429 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1346 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 16:03:29,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47461 states. [2022-07-12 16:03:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47461 to 42363. [2022-07-12 16:03:30,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2851013909837439) internal successors, (38341), 30611 states have internal predecessors, (38341), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-12 16:03:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 58235 transitions. [2022-07-12 16:03:30,866 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 58235 transitions. Word has length 154 [2022-07-12 16:03:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:30,866 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 58235 transitions. [2022-07-12 16:03:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 16:03:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 58235 transitions. [2022-07-12 16:03:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 16:03:30,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:30,868 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:30,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 16:03:30,869 INFO L420 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)] === [2022-07-12 16:03:30,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:30,869 INFO L85 PathProgramCache]: Analyzing trace with hash -648134910, now seen corresponding path program 1 times [2022-07-12 16:03:30,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:30,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462965020] [2022-07-12 16:03:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 16:03:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 16:03:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 16:03:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 16:03:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 16:03:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:03:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 16:03:31,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:31,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462965020] [2022-07-12 16:03:31,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462965020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:31,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:31,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:31,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112257243] [2022-07-12 16:03:31,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:31,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:31,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:31,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:31,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:31,304 INFO L87 Difference]: Start difference. First operand 42363 states and 58235 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:35,554 INFO L93 Difference]: Finished difference Result 136979 states and 192158 transitions. [2022-07-12 16:03:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-12 16:03:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:36,085 INFO L225 Difference]: With dead ends: 136979 [2022-07-12 16:03:36,086 INFO L226 Difference]: Without dead ends: 94695 [2022-07-12 16:03:36,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:36,240 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 2586 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1222 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:36,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2962 Valid, 5508 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1222 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 16:03:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94695 states. [2022-07-12 16:03:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94695 to 84621. [2022-07-12 16:03:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84621 states, 59595 states have (on average 1.2736135581844115) internal successors, (75901), 61145 states have internal predecessors, (75901), 19818 states have call successors, (19818), 5350 states have call predecessors, (19818), 5205 states have return successors, (20692), 18833 states have call predecessors, (20692), 19814 states have call successors, (20692) [2022-07-12 16:03:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84621 states to 84621 states and 116411 transitions. [2022-07-12 16:03:39,498 INFO L78 Accepts]: Start accepts. Automaton has 84621 states and 116411 transitions. Word has length 189 [2022-07-12 16:03:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:39,499 INFO L495 AbstractCegarLoop]: Abstraction has 84621 states and 116411 transitions. [2022-07-12 16:03:39,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 84621 states and 116411 transitions. [2022-07-12 16:03:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 16:03:39,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:39,504 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:39,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 16:03:39,505 INFO L420 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)] === [2022-07-12 16:03:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1960652548, now seen corresponding path program 1 times [2022-07-12 16:03:39,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:39,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166292794] [2022-07-12 16:03:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 16:03:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 16:03:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 16:03:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 16:03:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 16:03:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:03:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 16:03:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166292794] [2022-07-12 16:03:39,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166292794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:39,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:39,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145598051] [2022-07-12 16:03:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:39,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:39,724 INFO L87 Difference]: Start difference. First operand 84621 states and 116411 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:42,588 INFO L93 Difference]: Finished difference Result 131929 states and 181425 transitions. [2022-07-12 16:03:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:03:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-12 16:03:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:42,746 INFO L225 Difference]: With dead ends: 131929 [2022-07-12 16:03:42,747 INFO L226 Difference]: Without dead ends: 47387 [2022-07-12 16:03:42,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:42,902 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 2350 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:42,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2665 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 16:03:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47387 states. [2022-07-12 16:03:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47387 to 42363. [2022-07-12 16:03:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42363 states, 29835 states have (on average 1.2600301659125188) internal successors, (37593), 30611 states have internal predecessors, (37593), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-12 16:03:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42363 states to 42363 states and 57487 transitions. [2022-07-12 16:03:44,255 INFO L78 Accepts]: Start accepts. Automaton has 42363 states and 57487 transitions. Word has length 189 [2022-07-12 16:03:44,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:44,256 INFO L495 AbstractCegarLoop]: Abstraction has 42363 states and 57487 transitions. [2022-07-12 16:03:44,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 42363 states and 57487 transitions. [2022-07-12 16:03:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 16:03:44,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:44,258 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:44,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 16:03:44,258 INFO L420 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)] === [2022-07-12 16:03:44,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:44,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1906259650, now seen corresponding path program 1 times [2022-07-12 16:03:44,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:44,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497455633] [2022-07-12 16:03:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:44,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 16:03:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 16:03:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 16:03:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 16:03:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 16:03:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 16:03:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 16:03:44,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:44,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497455633] [2022-07-12 16:03:44,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497455633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:44,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:44,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520811984] [2022-07-12 16:03:44,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:44,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:44,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:44,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:44,612 INFO L87 Difference]: Start difference. First operand 42363 states and 57487 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:46,845 INFO L93 Difference]: Finished difference Result 89623 states and 122405 transitions. [2022-07-12 16:03:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:03:46,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-07-12 16:03:46,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:47,003 INFO L225 Difference]: With dead ends: 89623 [2022-07-12 16:03:47,004 INFO L226 Difference]: Without dead ends: 47339 [2022-07-12 16:03:47,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:47,095 INFO L413 NwaCegarLoop]: 1910 mSDtfsCounter, 2345 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:47,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 2646 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 16:03:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47339 states. [2022-07-12 16:03:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47339 to 42315. [2022-07-12 16:03:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42315 states, 29787 states have (on average 1.2540034243126197) internal successors, (37353), 30563 states have internal predecessors, (37353), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2022-07-12 16:03:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42315 states to 42315 states and 57247 transitions. [2022-07-12 16:03:48,605 INFO L78 Accepts]: Start accepts. Automaton has 42315 states and 57247 transitions. Word has length 189 [2022-07-12 16:03:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:48,606 INFO L495 AbstractCegarLoop]: Abstraction has 42315 states and 57247 transitions. [2022-07-12 16:03:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 42315 states and 57247 transitions. [2022-07-12 16:03:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-12 16:03:48,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:48,608 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:48,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 16:03:48,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2022-07-12 16:03:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:48,609 INFO L85 PathProgramCache]: Analyzing trace with hash 611798263, now seen corresponding path program 1 times [2022-07-12 16:03:48,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:48,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887765495] [2022-07-12 16:03:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:48,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 16:03:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:03:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 16:03:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:03:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 16:03:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 16:03:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-07-12 16:03:48,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:48,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887765495] [2022-07-12 16:03:48,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887765495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:48,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:48,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:03:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063822156] [2022-07-12 16:03:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:48,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:03:48,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:48,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:03:48,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:03:48,779 INFO L87 Difference]: Start difference. First operand 42315 states and 57247 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:53,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:03:53,330 INFO L93 Difference]: Finished difference Result 133613 states and 182465 transitions. [2022-07-12 16:03:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:03:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-07-12 16:03:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:03:53,691 INFO L225 Difference]: With dead ends: 133613 [2022-07-12 16:03:53,691 INFO L226 Difference]: Without dead ends: 91377 [2022-07-12 16:03:53,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:03:53,828 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 2729 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:03:53,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3090 Valid, 5316 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 16:03:53,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-12 16:03:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81325. [2022-07-12 16:03:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81325 states, 57323 states have (on average 1.254662177485477) internal successors, (71921), 58649 states have internal predecessors, (71921), 18954 states have call successors, (18954), 5158 states have call predecessors, (18954), 5045 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-12 16:03:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81325 states to 81325 states and 109933 transitions. [2022-07-12 16:03:56,862 INFO L78 Accepts]: Start accepts. Automaton has 81325 states and 109933 transitions. Word has length 192 [2022-07-12 16:03:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:03:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 81325 states and 109933 transitions. [2022-07-12 16:03:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 16:03:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 81325 states and 109933 transitions. [2022-07-12 16:03:56,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-12 16:03:56,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:03:56,865 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:03:56,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 16:03:56,865 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-07-12 16:03:56,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:03:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash 752346873, now seen corresponding path program 1 times [2022-07-12 16:03:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:03:56,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816810037] [2022-07-12 16:03:56,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:03:56,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:03:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:03:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:03:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:03:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:03:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:03:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:03:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:03:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:03:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:03:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:03:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:03:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 16:03:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:03:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 16:03:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:03:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:03:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 16:03:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 16:03:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:03:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 16:03:57,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:03:57,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816810037] [2022-07-12 16:03:57,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816810037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:03:57,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:03:57,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:03:57,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767862263] [2022-07-12 16:03:57,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:03:57,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:03:57,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:03:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:03:57,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:03:57,190 INFO L87 Difference]: Start difference. First operand 81325 states and 109933 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 16:04:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:04:01,458 INFO L93 Difference]: Finished difference Result 91379 states and 125075 transitions. [2022-07-12 16:04:01,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:04:01,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2022-07-12 16:04:01,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:04:01,786 INFO L225 Difference]: With dead ends: 91379 [2022-07-12 16:04:01,786 INFO L226 Difference]: Without dead ends: 91377 [2022-07-12 16:04:01,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:04:01,839 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 2342 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 16:04:01,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 4934 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [979 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 16:04:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91377 states. [2022-07-12 16:04:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91377 to 81329. [2022-07-12 16:04:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81329 states, 57326 states have (on average 1.2546488504343578) internal successors, (71924), 58652 states have internal predecessors, (71924), 18954 states have call successors, (18954), 5159 states have call predecessors, (18954), 5046 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2022-07-12 16:04:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81329 states to 81329 states and 109936 transitions. [2022-07-12 16:04:05,150 INFO L78 Accepts]: Start accepts. Automaton has 81329 states and 109936 transitions. Word has length 192 [2022-07-12 16:04:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:04:05,151 INFO L495 AbstractCegarLoop]: Abstraction has 81329 states and 109936 transitions. [2022-07-12 16:04:05,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 16:04:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 81329 states and 109936 transitions. [2022-07-12 16:04:05,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-12 16:04:05,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:04:05,153 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:04:05,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 16:04:05,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-07-12 16:04:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:04:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash 172767208, now seen corresponding path program 1 times [2022-07-12 16:04:05,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:04:05,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130797532] [2022-07-12 16:04:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:04:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:04:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 16:04:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:04:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 16:04:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:04:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:04:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 16:04:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 16:04:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:04:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 16:04:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:04:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 16:04:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 16:04:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:04:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 16:04:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:04:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:04:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 16:04:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 16:04:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:04:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:04:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-12 16:04:05,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:04:05,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130797532] [2022-07-12 16:04:05,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130797532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:04:05,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:04:05,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:04:05,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077011532] [2022-07-12 16:04:05,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:04:05,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:04:05,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:04:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:04:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:04:05,386 INFO L87 Difference]: Start difference. First operand 81329 states and 109936 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-07-12 16:04:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:04:09,852 INFO L93 Difference]: Finished difference Result 91383 states and 125078 transitions. [2022-07-12 16:04:09,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:04:09,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 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 197 [2022-07-12 16:04:09,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:04:10,154 INFO L225 Difference]: With dead ends: 91383 [2022-07-12 16:04:10,154 INFO L226 Difference]: Without dead ends: 91381 [2022-07-12 16:04:10,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:04:10,196 INFO L413 NwaCegarLoop]: 1905 mSDtfsCounter, 2334 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:04:10,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 4933 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 16:04:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91381 states.