./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:26:08,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:26:08,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:26:08,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:26:08,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:26:08,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:26:08,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:26:08,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:26:08,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:26:08,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:26:08,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:26:08,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:26:08,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:26:08,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:26:08,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:26:08,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:26:08,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:26:08,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:26:08,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:26:08,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:26:08,466 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:26:08,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:26:08,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:26:08,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:26:08,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:26:08,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:26:08,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:26:08,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:26:08,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:26:08,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:26:08,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:26:08,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:26:08,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:26:08,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:26:08,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:26:08,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:26:08,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:26:08,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:26:08,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:26:08,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:26:08,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:26:08,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:26:08,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 04:26:08,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:26:08,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:26:08,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:26:08,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:26:08,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:26:08,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:26:08,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:26:08,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:26:08,518 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:26:08,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:26:08,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 04:26:08,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:26:08,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:26:08,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:26:08,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:26:08,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:26:08,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:26:08,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:26:08,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:26:08,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:26:08,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:26:08,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:26:08,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:26:08,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:26:08,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:26:08,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 04:26:08,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 04:26:08,524 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:26:08,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:26:08,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:26:08,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-14 04:26:08,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:26:08,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:26:08,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:26:08,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:26:08,789 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:26:08,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-14 04:26:08,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e4f9a69/a975a24de31f4bafb561b3b58ed4a7be/FLAG81587e491 [2022-07-14 04:26:09,704 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:26:09,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-14 04:26:09,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e4f9a69/a975a24de31f4bafb561b3b58ed4a7be/FLAG81587e491 [2022-07-14 04:26:09,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e4f9a69/a975a24de31f4bafb561b3b58ed4a7be [2022-07-14 04:26:09,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:26:09,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:26:09,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:26:09,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:26:09,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:26:09,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:26:09" (1/1) ... [2022-07-14 04:26:09,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c893a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:09, skipping insertion in model container [2022-07-14 04:26:09,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:26:09" (1/1) ... [2022-07-14 04:26:09,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:26:10,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:26:13,384 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-07-14 04:26:13,387 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-14 04:26:13,388 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-07-14 04:26:13,388 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-07-14 04:26:13,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:26:13,466 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:26:13,896 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-07-14 04:26:13,897 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-14 04:26:13,898 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-07-14 04:26:13,898 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-07-14 04:26:13,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:26:14,074 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:26:14,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:14 WrapperNode [2022-07-14 04:26:14,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:26:14,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:26:14,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:26:14,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:26:14,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:14" (1/1) ... [2022-07-14 04:26:14,187 ERROR L1136 TypeChecker]: C: lp->phy[lp->active].spd.value [10596]: Undeclared identifier #t~mem1644 in IdentifierExpression[#t~mem1644,] [2022-07-14 04:26:14,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:14" (1/1) ... [2022-07-14 04:26:14,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:26:14,232 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2022-07-14 04:26:14,234 INFO L158 Benchmark]: Toolchain (without parser) took 4364.61ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 72.5MB in the beginning and 115.7MB in the end (delta: -43.2MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. [2022-07-14 04:26:14,235 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 04:26:14,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4204.98ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 72.5MB in the beginning and 124.0MB in the end (delta: -51.6MB). Peak memory consumption was 135.4MB. Max. memory is 16.1GB. [2022-07-14 04:26:14,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.97ms. Allocated memory is still 268.4MB. Free memory was 124.0MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 04:26:14,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4204.98ms. Allocated memory was 109.1MB in the beginning and 268.4MB in the end (delta: 159.4MB). Free memory was 72.5MB in the beginning and 124.0MB in the end (delta: -51.6MB). Peak memory consumption was 135.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.97ms. Allocated memory is still 268.4MB. Free memory was 124.0MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: 10596]: Type Error Undeclared identifier #t~mem1644 in IdentifierExpression[#t~mem1644,] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:26:15,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:26:15,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:26:15,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:26:15,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:26:15,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:26:15,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:26:15,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:26:15,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:26:16,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:26:16,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:26:16,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:26:16,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:26:16,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:26:16,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:26:16,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:26:16,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:26:16,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:26:16,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:26:16,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:26:16,022 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:26:16,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:26:16,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:26:16,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:26:16,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:26:16,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:26:16,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:26:16,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:26:16,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:26:16,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:26:16,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:26:16,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:26:16,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:26:16,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:26:16,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:26:16,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:26:16,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:26:16,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:26:16,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:26:16,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:26:16,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:26:16,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:26:16,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 04:26:16,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:26:16,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:26:16,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:26:16,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:26:16,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:26:16,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:26:16,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:26:16,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:26:16,087 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:26:16,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:26:16,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:26:16,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:26:16,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:26:16,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:26:16,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 04:26:16,089 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 04:26:16,089 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 04:26:16,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:26:16,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:26:16,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:26:16,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:26:16,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:26:16,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:26:16,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:26:16,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:26:16,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:26:16,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:26:16,092 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 04:26:16,092 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 04:26:16,092 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:26:16,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:26:16,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:26:16,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 04:26:16,093 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-14 04:26:16,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:26:16,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:26:16,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:26:16,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:26:16,443 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:26:16,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-14 04:26:16,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38f35eb5/97b90b2fd332418cb0101af1d111e872/FLAG867ab5d43 [2022-07-14 04:26:17,505 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:26:17,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-14 04:26:17,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38f35eb5/97b90b2fd332418cb0101af1d111e872/FLAG867ab5d43 [2022-07-14 04:26:18,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38f35eb5/97b90b2fd332418cb0101af1d111e872 [2022-07-14 04:26:18,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:26:18,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:26:18,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:26:18,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:26:18,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:26:18,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:26:18" (1/1) ... [2022-07-14 04:26:18,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a471ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:18, skipping insertion in model container [2022-07-14 04:26:18,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:26:18" (1/1) ... [2022-07-14 04:26:18,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:26:18,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:26:22,278 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-07-14 04:26:22,281 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-14 04:26:22,282 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-07-14 04:26:22,282 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-07-14 04:26:22,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:26:22,388 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 04:26:22,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:26:23,079 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-07-14 04:26:23,080 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-14 04:26:23,080 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-07-14 04:26:23,081 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-07-14 04:26:23,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:26:23,110 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:26:23,502 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2022-07-14 04:26:23,502 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-14 04:26:23,504 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2022-07-14 04:26:23,504 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_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2022-07-14 04:26:23,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:26:23,704 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:26:23,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23 WrapperNode [2022-07-14 04:26:23,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:26:23,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:26:23,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:26:23,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:26:23,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:23,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,077 INFO L137 Inliner]: procedures = 540, calls = 4106, calls flagged for inlining = 232, calls inlined = 215, statements flattened = 8209 [2022-07-14 04:26:24,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:26:24,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 04:26:24,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 04:26:24,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 04:26:24,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 04:26:24,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 04:26:24,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 04:26:24,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 04:26:24,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (1/1) ... [2022-07-14 04:26:24,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:26:24,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 04:26:24,572 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) [2022-07-14 04:26:24,583 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 [2022-07-14 04:26:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-07-14 04:26:24,608 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-07-14 04:26:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 04:26:24,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 04:26:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 04:26:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 04:26:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 04:26:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 04:26:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-07-14 04:26:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-07-14 04:26:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-07-14 04:26:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-07-14 04:26:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-14 04:26:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-14 04:26:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-14 04:26:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-14 04:26:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:26:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:26:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-14 04:26:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-14 04:26:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-07-14 04:26:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-07-14 04:26:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-07-14 04:26:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-07-14 04:26:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 04:26:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 04:26:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-07-14 04:26:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-07-14 04:26:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 04:26:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 04:26:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 04:26:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 04:26:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-07-14 04:26:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-07-14 04:26:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-07-14 04:26:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-07-14 04:26:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 04:26:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 04:26:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-07-14 04:26:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-07-14 04:26:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-14 04:26:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-14 04:26:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-07-14 04:26:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-07-14 04:26:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 04:26:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 04:26:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 04:26:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 04:26:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-07-14 04:26:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-07-14 04:26:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-14 04:26:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-14 04:26:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 04:26:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 04:26:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 04:26:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 04:26:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-14 04:26:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-07-14 04:26:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-07-14 04:26:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 04:26:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-14 04:26:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-14 04:26:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 04:26:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-14 04:26:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-14 04:26:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 04:26:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 04:26:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-14 04:26:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-14 04:26:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-07-14 04:26:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-07-14 04:26:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 04:26:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 04:26:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 04:26:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 04:26:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 04:26:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 04:26:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-07-14 04:26:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-07-14 04:26:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-07-14 04:26:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-07-14 04:26:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 04:26:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 04:26:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 04:26:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 04:26:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 04:26:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 04:26:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-14 04:26:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-14 04:26:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 04:26:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 04:26:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 04:26:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 04:26:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 04:26:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 04:26:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 04:26:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 04:26:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-07-14 04:26:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-07-14 04:26:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 04:26:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 04:26:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-07-14 04:26:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-07-14 04:26:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 04:26:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 04:26:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 04:26:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 04:26:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-07-14 04:26:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-07-14 04:26:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:26:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 04:26:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 04:26:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:26:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-07-14 04:26:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-14 04:26:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-07-14 04:26:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-07-14 04:26:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-07-14 04:26:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 04:26:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-07-14 04:26:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-07-14 04:26:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 04:26:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-07-14 04:26:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-14 04:26:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 04:26:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-07-14 04:26:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-07-14 04:26:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 04:26:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 04:26:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 04:26:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 04:26:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 04:26:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 04:26:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-07-14 04:26:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-07-14 04:26:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:26:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:26:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-14 04:26:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-14 04:26:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-07-14 04:26:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-07-14 04:26:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-07-14 04:26:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-07-14 04:26:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 04:26:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 04:26:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-07-14 04:26:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-07-14 04:26:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-07-14 04:26:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-07-14 04:26:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-07-14 04:26:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-07-14 04:26:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-07-14 04:26:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-07-14 04:26:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-07-14 04:26:24,635 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-07-14 04:26:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 04:26:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 04:26:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-07-14 04:26:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-07-14 04:26:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 04:26:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 04:26:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-07-14 04:26:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-07-14 04:26:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-07-14 04:26:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-07-14 04:26:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-07-14 04:26:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-07-14 04:26:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-07-14 04:26:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-07-14 04:26:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 04:26:24,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 04:26:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-07-14 04:26:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-07-14 04:26:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 04:26:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-07-14 04:26:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-07-14 04:26:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-07-14 04:26:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-07-14 04:26:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-07-14 04:26:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-07-14 04:26:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-07-14 04:26:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-07-14 04:26:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 04:26:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-07-14 04:26:24,639 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-07-14 04:26:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-14 04:26:24,640 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 04:26:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 04:26:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 04:26:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-07-14 04:26:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-07-14 04:26:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 04:26:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 04:26:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-07-14 04:26:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-07-14 04:26:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-07-14 04:26:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-07-14 04:26:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 04:26:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 04:26:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 04:26:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 04:26:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-14 04:26:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-14 04:26:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-07-14 04:26:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-07-14 04:26:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 04:26:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 04:26:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-14 04:26:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-14 04:26:24,643 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-07-14 04:26:24,643 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-07-14 04:26:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-07-14 04:26:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-07-14 04:26:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-07-14 04:26:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-07-14 04:26:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-14 04:26:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-14 04:26:24,644 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-14 04:26:24,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-14 04:26:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 04:26:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 04:26:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 04:26:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 04:26:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-07-14 04:26:24,645 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-07-14 04:26:24,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:26:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:26:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-14 04:26:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-14 04:26:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-07-14 04:26:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-07-14 04:26:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-07-14 04:26:24,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-07-14 04:26:24,646 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-07-14 04:26:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 04:26:24,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 04:26:24,647 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-07-14 04:26:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-07-14 04:26:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 04:26:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 04:26:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-07-14 04:26:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-07-14 04:26:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 04:26:24,648 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 04:26:24,648 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-07-14 04:26:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-07-14 04:26:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-07-14 04:26:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-07-14 04:26:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-07-14 04:26:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-07-14 04:26:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-07-14 04:26:24,649 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-07-14 04:26:24,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 04:26:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 04:26:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-07-14 04:26:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-07-14 04:26:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-07-14 04:26:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-07-14 04:26:24,650 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-07-14 04:26:24,650 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-07-14 04:26:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-07-14 04:26:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-07-14 04:26:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-07-14 04:26:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-07-14 04:26:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-07-14 04:26:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-07-14 04:26:24,651 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 04:26:24,651 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 04:26:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-07-14 04:26:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-07-14 04:26:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-07-14 04:26:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-07-14 04:26:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-14 04:26:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-14 04:26:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-07-14 04:26:24,652 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-07-14 04:26:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-07-14 04:26:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-07-14 04:26:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-07-14 04:26:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-07-14 04:26:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 04:26:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 04:26:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-14 04:26:25,788 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 04:26:25,791 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 04:26:28,770 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 04:27:46,115 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 04:27:46,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 04:27:46,150 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-14 04:27:46,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:27:46 BoogieIcfgContainer [2022-07-14 04:27:46,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 04:27:46,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 04:27:46,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 04:27:46,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 04:27:46,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 04:26:18" (1/3) ... [2022-07-14 04:27:46,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d32b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:27:46, skipping insertion in model container [2022-07-14 04:27:46,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:26:23" (2/3) ... [2022-07-14 04:27:46,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d32b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:27:46, skipping insertion in model container [2022-07-14 04:27:46,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:27:46" (3/3) ... [2022-07-14 04:27:46,166 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-14 04:27:46,178 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 04:27:46,178 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 04:27:46,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 04:27:46,307 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@e1b9b4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@56261e8c [2022-07-14 04:27:46,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 04:27:46,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 3798 states, 2688 states have (on average 1.3530505952380953) internal successors, (3637), 2765 states have internal predecessors, (3637), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) [2022-07-14 04:27:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 04:27:46,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:27:46,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 04:27:46,329 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)] === [2022-07-14 04:27:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:27:46,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1763242755, now seen corresponding path program 1 times [2022-07-14 04:27:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:27:46,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991108050] [2022-07-14 04:27:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:27:46,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:27:46,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:27:46,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:27:46,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 04:27:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:27:48,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:27:48,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:27:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:27:49,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:27:49,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:27:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991108050] [2022-07-14 04:27:49,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991108050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:27:49,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:27:49,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:27:49,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861383008] [2022-07-14 04:27:49,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:27:49,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:27:49,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:27:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:27:49,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:27:49,449 INFO L87 Difference]: Start difference. First operand has 3798 states, 2688 states have (on average 1.3530505952380953) internal successors, (3637), 2765 states have internal predecessors, (3637), 972 states have call successors, (972), 151 states have call predecessors, (972), 150 states have return successors, (963), 949 states have call predecessors, (963), 963 states have call successors, (963) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:27:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:27:50,296 INFO L93 Difference]: Finished difference Result 7523 states and 11247 transitions. [2022-07-14 04:27:50,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 04:27:50,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-07-14 04:27:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:27:50,347 INFO L225 Difference]: With dead ends: 7523 [2022-07-14 04:27:50,347 INFO L226 Difference]: Without dead ends: 3736 [2022-07-14 04:27:50,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:27:50,391 INFO L413 NwaCegarLoop]: 5462 mSDtfsCounter, 5436 mSDsluCounter, 10911 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5437 SdHoareTripleChecker+Valid, 16373 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:27:50,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5437 Valid, 16373 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:27:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2022-07-14 04:27:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2022-07-14 04:27:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 2636 states have (on average 1.3482549317147192) internal successors, (3554), 2694 states have internal predecessors, (3554), 947 states have call successors, (947), 151 states have call predecessors, (947), 150 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-07-14 04:27:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5445 transitions. [2022-07-14 04:27:50,682 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5445 transitions. Word has length 48 [2022-07-14 04:27:50,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:27:50,683 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5445 transitions. [2022-07-14 04:27:50,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 04:27:50,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5445 transitions. [2022-07-14 04:27:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 04:27:50,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:27:50,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 04:27:50,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 04:27:50,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:27:50,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-07-14 04:27:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:27:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash -524435869, now seen corresponding path program 1 times [2022-07-14 04:27:50,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:27:50,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990047346] [2022-07-14 04:27:50,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:27:50,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:27:50,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:27:50,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:27:50,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 04:27:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:27:52,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:27:52,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:27:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:27:53,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:27:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-14 04:27:54,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:27:54,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990047346] [2022-07-14 04:27:54,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990047346] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:27:54,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:27:54,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:27:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871572458] [2022-07-14 04:27:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:27:54,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:27:54,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:27:54,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:27:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:27:54,376 INFO L87 Difference]: Start difference. First operand 3736 states and 5445 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:27:55,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:27:55,164 INFO L93 Difference]: Finished difference Result 3742 states and 5450 transitions. [2022-07-14 04:27:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:27:55,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-07-14 04:27:55,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:27:55,196 INFO L225 Difference]: With dead ends: 3742 [2022-07-14 04:27:55,197 INFO L226 Difference]: Without dead ends: 3740 [2022-07-14 04:27:55,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:27:55,202 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:27:55,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:27:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-07-14 04:27:55,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2022-07-14 04:27:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 2639 states have (on average 1.3478590375142099) internal successors, (3557), 2697 states have internal predecessors, (3557), 947 states have call successors, (947), 152 states have call predecessors, (947), 151 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-07-14 04:27:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5448 transitions. [2022-07-14 04:27:55,379 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5448 transitions. Word has length 53 [2022-07-14 04:27:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:27:55,380 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 5448 transitions. [2022-07-14 04:27:55,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:27:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5448 transitions. [2022-07-14 04:27:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 04:27:55,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:27:55,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-14 04:27:55,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 04:27:55,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:27:55,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-07-14 04:27:55,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:27:55,604 INFO L85 PathProgramCache]: Analyzing trace with hash 77141117, now seen corresponding path program 1 times [2022-07-14 04:27:55,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:27:55,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997678261] [2022-07-14 04:27:55,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:27:55,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:27:55,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:27:55,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:27:55,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 04:27:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:27:57,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:27:57,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:27:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 04:27:58,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:27:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 04:27:59,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:27:59,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997678261] [2022-07-14 04:27:59,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997678261] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:27:59,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:27:59,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:27:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081880718] [2022-07-14 04:27:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:27:59,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:27:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:27:59,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:27:59,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:27:59,129 INFO L87 Difference]: Start difference. First operand 3740 states and 5448 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:27:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:27:59,813 INFO L93 Difference]: Finished difference Result 3746 states and 5453 transitions. [2022-07-14 04:27:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:27:59,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-14 04:27:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:27:59,841 INFO L225 Difference]: With dead ends: 3746 [2022-07-14 04:27:59,841 INFO L226 Difference]: Without dead ends: 3744 [2022-07-14 04:27:59,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:27:59,847 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:27:59,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:27:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-07-14 04:27:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-07-14 04:27:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 2642 states have (on average 1.3474640423921271) internal successors, (3560), 2700 states have internal predecessors, (3560), 947 states have call successors, (947), 153 states have call predecessors, (947), 152 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2022-07-14 04:28:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5451 transitions. [2022-07-14 04:28:00,019 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5451 transitions. Word has length 58 [2022-07-14 04:28:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:00,020 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 5451 transitions. [2022-07-14 04:28:00,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:28:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5451 transitions. [2022-07-14 04:28:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-14 04:28:00,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:00,026 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-14 04:28:00,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:00,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:00,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-07-14 04:28:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 667830667, now seen corresponding path program 1 times [2022-07-14 04:28:00,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:00,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534464457] [2022-07-14 04:28:00,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:00,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:00,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:00,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 04:28:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:01,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 04:28:01,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 04:28:04,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-14 04:28:06,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:06,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534464457] [2022-07-14 04:28:06,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534464457] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:28:06,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:28:06,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-14 04:28:06,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957978247] [2022-07-14 04:28:06,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:28:06,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 04:28:06,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 04:28:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-14 04:28:06,697 INFO L87 Difference]: Start difference. First operand 3744 states and 5451 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2022-07-14 04:28:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:17,136 INFO L93 Difference]: Finished difference Result 3798 states and 5518 transitions. [2022-07-14 04:28:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 04:28:17,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 70 [2022-07-14 04:28:17,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:17,163 INFO L225 Difference]: With dead ends: 3798 [2022-07-14 04:28:17,164 INFO L226 Difference]: Without dead ends: 3758 [2022-07-14 04:28:17,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-14 04:28:17,168 INFO L413 NwaCegarLoop]: 5406 mSDtfsCounter, 42 mSDsluCounter, 80951 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86357 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:17,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86357 Invalid, 782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-14 04:28:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-14 04:28:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3754. [2022-07-14 04:28:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2650 states have (on average 1.3464150943396227) internal successors, (3568), 2708 states have internal predecessors, (3568), 949 states have call successors, (949), 153 states have call predecessors, (949), 152 states have return successors, (946), 932 states have call predecessors, (946), 946 states have call successors, (946) [2022-07-14 04:28:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5463 transitions. [2022-07-14 04:28:17,430 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5463 transitions. Word has length 70 [2022-07-14 04:28:17,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:17,431 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5463 transitions. [2022-07-14 04:28:17,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2022-07-14 04:28:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5463 transitions. [2022-07-14 04:28:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 04:28:17,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:17,433 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-14 04:28:17,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-14 04:28:17,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:17,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-07-14 04:28:17,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash -18966941, now seen corresponding path program 1 times [2022-07-14 04:28:17,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:17,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630388838] [2022-07-14 04:28:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:17,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:17,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:17,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:17,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 04:28:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:19,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:19,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 04:28:20,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 04:28:21,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:21,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630388838] [2022-07-14 04:28:21,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630388838] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:21,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:21,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:21,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876990521] [2022-07-14 04:28:21,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:21,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:21,182 INFO L87 Difference]: Start difference. First operand 3754 states and 5463 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 04:28:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:21,860 INFO L93 Difference]: Finished difference Result 3760 states and 5468 transitions. [2022-07-14 04:28:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:21,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-07-14 04:28:21,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:21,888 INFO L225 Difference]: With dead ends: 3760 [2022-07-14 04:28:21,889 INFO L226 Difference]: Without dead ends: 3758 [2022-07-14 04:28:21,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:21,892 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5422 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:21,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5422 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-14 04:28:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2022-07-14 04:28:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 2653 states have (on average 1.3460233697700716) internal successors, (3571), 2711 states have internal predecessors, (3571), 949 states have call successors, (949), 154 states have call predecessors, (949), 153 states have return successors, (946), 932 states have call predecessors, (946), 946 states have call successors, (946) [2022-07-14 04:28:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5466 transitions. [2022-07-14 04:28:22,102 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5466 transitions. Word has length 63 [2022-07-14 04:28:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:22,103 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5466 transitions. [2022-07-14 04:28:22,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 04:28:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5466 transitions. [2022-07-14 04:28:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-14 04:28:22,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:22,105 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-07-14 04:28:22,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:22,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:22,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:28:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:22,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1366911997, now seen corresponding path program 1 times [2022-07-14 04:28:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:22,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057784156] [2022-07-14 04:28:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:22,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:22,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:22,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:22,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 04:28:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:23,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:23,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 04:28:25,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-14 04:28:26,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:26,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057784156] [2022-07-14 04:28:26,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057784156] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:26,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:26,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303290286] [2022-07-14 04:28:26,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:26,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:26,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:26,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:26,072 INFO L87 Difference]: Start difference. First operand 3758 states and 5466 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 04:28:26,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:26,776 INFO L93 Difference]: Finished difference Result 3764 states and 5471 transitions. [2022-07-14 04:28:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:26,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-07-14 04:28:26,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:26,801 INFO L225 Difference]: With dead ends: 3764 [2022-07-14 04:28:26,802 INFO L226 Difference]: Without dead ends: 3762 [2022-07-14 04:28:26,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:26,807 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5421 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:26,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5421 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2022-07-14 04:28:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3762. [2022-07-14 04:28:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 2656 states have (on average 1.345632530120482) internal successors, (3574), 2714 states have internal predecessors, (3574), 949 states have call successors, (949), 155 states have call predecessors, (949), 154 states have return successors, (946), 932 states have call predecessors, (946), 946 states have call successors, (946) [2022-07-14 04:28:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 5469 transitions. [2022-07-14 04:28:27,008 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 5469 transitions. Word has length 68 [2022-07-14 04:28:27,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:27,009 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 5469 transitions. [2022-07-14 04:28:27,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 04:28:27,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 5469 transitions. [2022-07-14 04:28:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 04:28:27,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:27,011 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2022-07-14 04:28:27,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-14 04:28:27,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:27,232 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)] === [2022-07-14 04:28:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash 239279715, now seen corresponding path program 1 times [2022-07-14 04:28:27,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:27,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507073889] [2022-07-14 04:28:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:27,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:27,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:27,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:27,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 04:28:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:28,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:28,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:30,410 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 04:28:30,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 04:28:31,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:31,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507073889] [2022-07-14 04:28:31,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507073889] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:31,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:31,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:31,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568815543] [2022-07-14 04:28:31,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:31,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:31,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:31,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:31,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:31,195 INFO L87 Difference]: Start difference. First operand 3762 states and 5469 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 04:28:31,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:31,893 INFO L93 Difference]: Finished difference Result 3768 states and 5474 transitions. [2022-07-14 04:28:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:31,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-07-14 04:28:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:31,919 INFO L225 Difference]: With dead ends: 3768 [2022-07-14 04:28:31,920 INFO L226 Difference]: Without dead ends: 3766 [2022-07-14 04:28:31,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:31,924 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5420 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:31,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5420 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-07-14 04:28:32,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3766. [2022-07-14 04:28:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 2659 states have (on average 1.3452425723956374) internal successors, (3577), 2717 states have internal predecessors, (3577), 949 states have call successors, (949), 156 states have call predecessors, (949), 155 states have return successors, (946), 932 states have call predecessors, (946), 946 states have call successors, (946) [2022-07-14 04:28:32,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5472 transitions. [2022-07-14 04:28:32,142 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5472 transitions. Word has length 73 [2022-07-14 04:28:32,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:32,143 INFO L495 AbstractCegarLoop]: Abstraction has 3766 states and 5472 transitions. [2022-07-14 04:28:32,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 04:28:32,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5472 transitions. [2022-07-14 04:28:32,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-14 04:28:32,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:32,145 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2022-07-14 04:28:32,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:32,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:32,364 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)] === [2022-07-14 04:28:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1407456125, now seen corresponding path program 1 times [2022-07-14 04:28:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:32,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483476720] [2022-07-14 04:28:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:32,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:32,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:32,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:32,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 04:28:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:33,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:33,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:35,407 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 04:28:35,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 04:28:36,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:36,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483476720] [2022-07-14 04:28:36,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483476720] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:36,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:36,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716533633] [2022-07-14 04:28:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:36,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:36,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:36,209 INFO L87 Difference]: Start difference. First operand 3766 states and 5472 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 04:28:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:36,914 INFO L93 Difference]: Finished difference Result 3772 states and 5477 transitions. [2022-07-14 04:28:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:36,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2022-07-14 04:28:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:36,934 INFO L225 Difference]: With dead ends: 3772 [2022-07-14 04:28:36,934 INFO L226 Difference]: Without dead ends: 3770 [2022-07-14 04:28:36,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:36,937 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5419 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:36,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5419 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:36,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-07-14 04:28:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3770. [2022-07-14 04:28:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 2662 states have (on average 1.3448534936138241) internal successors, (3580), 2720 states have internal predecessors, (3580), 949 states have call successors, (949), 157 states have call predecessors, (949), 156 states have return successors, (946), 932 states have call predecessors, (946), 946 states have call successors, (946) [2022-07-14 04:28:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5475 transitions. [2022-07-14 04:28:37,125 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5475 transitions. Word has length 78 [2022-07-14 04:28:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:37,126 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5475 transitions. [2022-07-14 04:28:37,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 04:28:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5475 transitions. [2022-07-14 04:28:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-14 04:28:37,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:37,132 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2022-07-14 04:28:37,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:37,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:37,350 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)] === [2022-07-14 04:28:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -770746781, now seen corresponding path program 1 times [2022-07-14 04:28:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:37,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854160879] [2022-07-14 04:28:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:37,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:37,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:37,353 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:37,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 04:28:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:38,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:38,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 04:28:40,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 04:28:41,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:41,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854160879] [2022-07-14 04:28:41,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854160879] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:41,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:41,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:41,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982875081] [2022-07-14 04:28:41,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:41,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:41,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:41,501 INFO L87 Difference]: Start difference. First operand 3770 states and 5475 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 04:28:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:42,198 INFO L93 Difference]: Finished difference Result 4065 states and 5835 transitions. [2022-07-14 04:28:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:42,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2022-07-14 04:28:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:42,217 INFO L225 Difference]: With dead ends: 4065 [2022-07-14 04:28:42,218 INFO L226 Difference]: Without dead ends: 4063 [2022-07-14 04:28:42,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:42,222 INFO L413 NwaCegarLoop]: 5550 mSDtfsCounter, 5130 mSDsluCounter, 11714 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 17264 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:42,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 17264 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2022-07-14 04:28:42,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4057. [2022-07-14 04:28:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 2860 states have (on average 1.336013986013986) internal successors, (3821), 2925 states have internal predecessors, (3821), 1005 states have call successors, (1005), 193 states have call predecessors, (1005), 189 states have return successors, (1003), 982 states have call predecessors, (1003), 1002 states have call successors, (1003) [2022-07-14 04:28:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5829 transitions. [2022-07-14 04:28:42,420 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5829 transitions. Word has length 83 [2022-07-14 04:28:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:42,421 INFO L495 AbstractCegarLoop]: Abstraction has 4057 states and 5829 transitions. [2022-07-14 04:28:42,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 04:28:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5829 transitions. [2022-07-14 04:28:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-14 04:28:42,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:42,422 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2022-07-14 04:28:42,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-14 04:28:42,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:42,635 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)] === [2022-07-14 04:28:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1623913731, now seen corresponding path program 1 times [2022-07-14 04:28:42,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:42,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685313415] [2022-07-14 04:28:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:42,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:42,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:42,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 04:28:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:44,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 04:28:46,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 04:28:46,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685313415] [2022-07-14 04:28:46,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685313415] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:46,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:46,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532390011] [2022-07-14 04:28:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:46,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:46,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:46,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:46,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:46,868 INFO L87 Difference]: Start difference. First operand 4057 states and 5829 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 04:28:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:47,558 INFO L93 Difference]: Finished difference Result 4063 states and 5834 transitions. [2022-07-14 04:28:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:47,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-07-14 04:28:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:47,577 INFO L225 Difference]: With dead ends: 4063 [2022-07-14 04:28:47,577 INFO L226 Difference]: Without dead ends: 4061 [2022-07-14 04:28:47,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:47,580 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5417 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:47,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5417 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-07-14 04:28:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 4061. [2022-07-14 04:28:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4061 states, 2863 states have (on average 1.3356618931191058) internal successors, (3824), 2928 states have internal predecessors, (3824), 1005 states have call successors, (1005), 194 states have call predecessors, (1005), 190 states have return successors, (1003), 982 states have call predecessors, (1003), 1002 states have call successors, (1003) [2022-07-14 04:28:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4061 states to 4061 states and 5832 transitions. [2022-07-14 04:28:47,769 INFO L78 Accepts]: Start accepts. Automaton has 4061 states and 5832 transitions. Word has length 88 [2022-07-14 04:28:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:47,770 INFO L495 AbstractCegarLoop]: Abstraction has 4061 states and 5832 transitions. [2022-07-14 04:28:47,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 04:28:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4061 states and 5832 transitions. [2022-07-14 04:28:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 04:28:47,771 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:47,771 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2022-07-14 04:28:47,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:47,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:47,991 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)] === [2022-07-14 04:28:47,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1885814371, now seen corresponding path program 1 times [2022-07-14 04:28:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:47,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516965491] [2022-07-14 04:28:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:47,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:47,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:47,996 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:47,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 04:28:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:49,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:49,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 04:28:51,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 04:28:52,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:52,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516965491] [2022-07-14 04:28:52,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516965491] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:52,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:52,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:52,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038648551] [2022-07-14 04:28:52,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:52,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:52,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:52,617 INFO L87 Difference]: Start difference. First operand 4061 states and 5832 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 04:28:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:53,443 INFO L93 Difference]: Finished difference Result 4067 states and 5837 transitions. [2022-07-14 04:28:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:53,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-07-14 04:28:53,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:53,457 INFO L225 Difference]: With dead ends: 4067 [2022-07-14 04:28:53,457 INFO L226 Difference]: Without dead ends: 4065 [2022-07-14 04:28:53,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:53,459 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5416 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:53,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5416 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:53,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2022-07-14 04:28:53,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2022-07-14 04:28:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2866 states have (on average 1.3353105373342637) internal successors, (3827), 2931 states have internal predecessors, (3827), 1005 states have call successors, (1005), 195 states have call predecessors, (1005), 191 states have return successors, (1003), 982 states have call predecessors, (1003), 1002 states have call successors, (1003) [2022-07-14 04:28:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5835 transitions. [2022-07-14 04:28:53,630 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5835 transitions. Word has length 93 [2022-07-14 04:28:53,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:53,630 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5835 transitions. [2022-07-14 04:28:53,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 04:28:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5835 transitions. [2022-07-14 04:28:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-14 04:28:53,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:53,632 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2022-07-14 04:28:53,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:53,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:53,852 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)] === [2022-07-14 04:28:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1137201789, now seen corresponding path program 1 times [2022-07-14 04:28:53,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:53,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254027260] [2022-07-14 04:28:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:53,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:53,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:53,856 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:53,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 04:28:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:28:55,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:28:55,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:28:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 04:28:57,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:28:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-14 04:28:58,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:28:58,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254027260] [2022-07-14 04:28:58,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254027260] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:28:58,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:28:58,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:28:58,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795126311] [2022-07-14 04:28:58,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:28:58,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:28:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:28:58,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:28:58,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:28:58,705 INFO L87 Difference]: Start difference. First operand 4065 states and 5835 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 04:28:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:28:59,428 INFO L93 Difference]: Finished difference Result 4071 states and 5840 transitions. [2022-07-14 04:28:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:28:59,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2022-07-14 04:28:59,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:28:59,445 INFO L225 Difference]: With dead ends: 4071 [2022-07-14 04:28:59,446 INFO L226 Difference]: Without dead ends: 4069 [2022-07-14 04:28:59,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:28:59,449 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:28:59,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5415 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:28:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-07-14 04:28:59,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2022-07-14 04:28:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2869 states have (on average 1.3349599163471593) internal successors, (3830), 2934 states have internal predecessors, (3830), 1005 states have call successors, (1005), 196 states have call predecessors, (1005), 192 states have return successors, (1003), 982 states have call predecessors, (1003), 1002 states have call successors, (1003) [2022-07-14 04:28:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5838 transitions. [2022-07-14 04:28:59,646 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5838 transitions. Word has length 98 [2022-07-14 04:28:59,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:28:59,647 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5838 transitions. [2022-07-14 04:28:59,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 04:28:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5838 transitions. [2022-07-14 04:28:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 04:28:59,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:28:59,650 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2022-07-14 04:28:59,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 04:28:59,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:28:59,871 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-07-14 04:28:59,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:28:59,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1301359005, now seen corresponding path program 1 times [2022-07-14 04:28:59,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:28:59,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297795505] [2022-07-14 04:28:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:28:59,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:28:59,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:28:59,876 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:28:59,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 04:29:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:01,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:01,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:29:03,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 04:29:04,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:04,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297795505] [2022-07-14 04:29:04,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297795505] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:04,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:04,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440677977] [2022-07-14 04:29:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:04,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:04,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:04,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:04,715 INFO L87 Difference]: Start difference. First operand 4069 states and 5838 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:05,395 INFO L93 Difference]: Finished difference Result 4075 states and 5843 transitions. [2022-07-14 04:29:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2022-07-14 04:29:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:05,410 INFO L225 Difference]: With dead ends: 4075 [2022-07-14 04:29:05,410 INFO L226 Difference]: Without dead ends: 4071 [2022-07-14 04:29:05,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:05,413 INFO L413 NwaCegarLoop]: 5442 mSDtfsCounter, 5413 mSDsluCounter, 10864 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 16306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:05,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5414 Valid, 16306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:29:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2022-07-14 04:29:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 4071. [2022-07-14 04:29:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4071 states, 2871 states have (on average 1.334378265412748) internal successors, (3831), 2935 states have internal predecessors, (3831), 1005 states have call successors, (1005), 197 states have call predecessors, (1005), 192 states have return successors, (1003), 982 states have call predecessors, (1003), 1002 states have call successors, (1003) [2022-07-14 04:29:05,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5839 transitions. [2022-07-14 04:29:05,612 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5839 transitions. Word has length 103 [2022-07-14 04:29:05,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:05,613 INFO L495 AbstractCegarLoop]: Abstraction has 4071 states and 5839 transitions. [2022-07-14 04:29:05,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 04:29:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5839 transitions. [2022-07-14 04:29:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 04:29:05,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:05,615 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 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] [2022-07-14 04:29:05,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:05,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:05,838 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-07-14 04:29:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1896224259, now seen corresponding path program 1 times [2022-07-14 04:29:05,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:05,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540231057] [2022-07-14 04:29:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:05,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:05,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:05,844 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:05,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 04:29:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:07,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:29:07,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-14 04:29:09,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-14 04:29:10,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:10,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540231057] [2022-07-14 04:29:10,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540231057] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:29:10,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:29:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:29:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383125815] [2022-07-14 04:29:10,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:10,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:29:10,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:29:10,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:29:10,729 INFO L87 Difference]: Start difference. First operand 4071 states and 5839 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:29:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:11,412 INFO L93 Difference]: Finished difference Result 4071 states and 5839 transitions. [2022-07-14 04:29:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:29:11,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 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 108 [2022-07-14 04:29:11,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:11,432 INFO L225 Difference]: With dead ends: 4071 [2022-07-14 04:29:11,433 INFO L226 Difference]: Without dead ends: 3968 [2022-07-14 04:29:11,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:29:11,438 INFO L413 NwaCegarLoop]: 5440 mSDtfsCounter, 5409 mSDsluCounter, 10863 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 16303 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:11,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5409 Valid, 16303 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:29:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-07-14 04:29:11,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3968. [2022-07-14 04:29:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 2805 states have (on average 1.3411764705882352) internal successors, (3762), 2867 states have internal predecessors, (3762), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-07-14 04:29:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5725 transitions. [2022-07-14 04:29:11,666 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5725 transitions. Word has length 108 [2022-07-14 04:29:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:11,667 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5725 transitions. [2022-07-14 04:29:11,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:29:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5725 transitions. [2022-07-14 04:29:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-14 04:29:11,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:11,677 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:11,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:11,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:11,896 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-07-14 04:29:11,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1429581440, now seen corresponding path program 1 times [2022-07-14 04:29:11,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:11,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995286078] [2022-07-14 04:29:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:11,901 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:11,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 04:29:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:14,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-14 04:29:14,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-14 04:29:14,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:29:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-14 04:29:16,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:16,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995286078] [2022-07-14 04:29:16,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995286078] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 04:29:16,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 04:29:16,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-14 04:29:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756655726] [2022-07-14 04:29:16,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 04:29:16,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 04:29:16,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:16,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 04:29:16,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 04:29:16,922 INFO L87 Difference]: Start difference. First operand 3968 states and 5725 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-14 04:29:20,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:20,049 INFO L93 Difference]: Finished difference Result 7925 states and 11434 transitions. [2022-07-14 04:29:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 04:29:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) Word has length 181 [2022-07-14 04:29:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:20,071 INFO L225 Difference]: With dead ends: 7925 [2022-07-14 04:29:20,071 INFO L226 Difference]: Without dead ends: 3970 [2022-07-14 04:29:20,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-14 04:29:20,100 INFO L413 NwaCegarLoop]: 5347 mSDtfsCounter, 750 mSDsluCounter, 25795 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 31142 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:20,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 31142 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-14 04:29:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-07-14 04:29:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3968. [2022-07-14 04:29:20,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 2805 states have (on average 1.3408199643493761) internal successors, (3761), 2866 states have internal predecessors, (3761), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-07-14 04:29:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5724 transitions. [2022-07-14 04:29:20,336 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5724 transitions. Word has length 181 [2022-07-14 04:29:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:20,336 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5724 transitions. [2022-07-14 04:29:20,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 4 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-14 04:29:20,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5724 transitions. [2022-07-14 04:29:20,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 04:29:20,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:20,348 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:20,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:20,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:20,564 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-07-14 04:29:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash -470737409, now seen corresponding path program 1 times [2022-07-14 04:29:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:20,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457753735] [2022-07-14 04:29:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:20,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:20,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:20,568 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:20,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 04:29:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:22,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:29:22,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-07-14 04:29:25,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:25,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:25,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457753735] [2022-07-14 04:29:25,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457753735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:25,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:25,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:29:25,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127879593] [2022-07-14 04:29:25,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:25,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:29:25,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:29:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:29:25,007 INFO L87 Difference]: Start difference. First operand 3968 states and 5724 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 04:29:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:25,188 INFO L93 Difference]: Finished difference Result 7918 states and 11423 transitions. [2022-07-14 04:29:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:29:25,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 184 [2022-07-14 04:29:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:25,208 INFO L225 Difference]: With dead ends: 7918 [2022-07-14 04:29:25,208 INFO L226 Difference]: Without dead ends: 3967 [2022-07-14 04:29:25,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:29:25,236 INFO L413 NwaCegarLoop]: 5369 mSDtfsCounter, 5323 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5323 SdHoareTripleChecker+Valid, 5369 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:25,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5323 Valid, 5369 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:29:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2022-07-14 04:29:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3967. [2022-07-14 04:29:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2804 states have (on average 1.340228245363766) internal successors, (3758), 2865 states have internal predecessors, (3758), 981 states have call successors, (981), 183 states have call predecessors, (981), 180 states have return successors, (982), 961 states have call predecessors, (982), 981 states have call successors, (982) [2022-07-14 04:29:25,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5721 transitions. [2022-07-14 04:29:25,560 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5721 transitions. Word has length 184 [2022-07-14 04:29:25,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:25,561 INFO L495 AbstractCegarLoop]: Abstraction has 3967 states and 5721 transitions. [2022-07-14 04:29:25,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 04:29:25,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5721 transitions. [2022-07-14 04:29:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-14 04:29:25,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:25,571 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:25,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-14 04:29:25,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:25,791 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-07-14 04:29:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash -929426377, now seen corresponding path program 1 times [2022-07-14 04:29:25,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:25,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089048662] [2022-07-14 04:29:25,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:25,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:25,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:25,795 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:25,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 04:29:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:27,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 04:29:27,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-14 04:29:29,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:29,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:29,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089048662] [2022-07-14 04:29:29,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089048662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:29,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:29,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 04:29:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573985446] [2022-07-14 04:29:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:29,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 04:29:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 04:29:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 04:29:29,733 INFO L87 Difference]: Start difference. First operand 3967 states and 5721 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-14 04:29:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:38,049 INFO L93 Difference]: Finished difference Result 8572 states and 12404 transitions. [2022-07-14 04:29:38,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 04:29:38,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 186 [2022-07-14 04:29:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:38,069 INFO L225 Difference]: With dead ends: 8572 [2022-07-14 04:29:38,070 INFO L226 Difference]: Without dead ends: 4621 [2022-07-14 04:29:38,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-07-14 04:29:38,093 INFO L413 NwaCegarLoop]: 6304 mSDtfsCounter, 2125 mSDsluCounter, 60431 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 66735 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:38,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 66735 Invalid, 929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [424 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-14 04:29:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2022-07-14 04:29:38,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3975. [2022-07-14 04:29:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2810 states have (on average 1.3395017793594306) internal successors, (3764), 2871 states have internal predecessors, (3764), 983 states have call successors, (983), 183 states have call predecessors, (983), 180 states have return successors, (984), 963 states have call predecessors, (984), 983 states have call successors, (984) [2022-07-14 04:29:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5731 transitions. [2022-07-14 04:29:38,328 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5731 transitions. Word has length 186 [2022-07-14 04:29:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:38,329 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5731 transitions. [2022-07-14 04:29:38,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-14 04:29:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5731 transitions. [2022-07-14 04:29:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-14 04:29:38,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:38,339 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:38,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:38,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:38,556 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-07-14 04:29:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:38,556 INFO L85 PathProgramCache]: Analyzing trace with hash 468489244, now seen corresponding path program 1 times [2022-07-14 04:29:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:38,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378023214] [2022-07-14 04:29:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:38,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:38,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:38,561 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:38,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 04:29:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:40,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 04:29:40,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-14 04:29:42,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:42,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:42,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378023214] [2022-07-14 04:29:42,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378023214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:42,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:42,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 04:29:42,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749730807] [2022-07-14 04:29:42,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:42,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 04:29:42,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 04:29:42,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 04:29:42,636 INFO L87 Difference]: Start difference. First operand 3975 states and 5731 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-14 04:29:51,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:29:51,328 INFO L93 Difference]: Finished difference Result 9235 states and 13396 transitions. [2022-07-14 04:29:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 04:29:51,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 188 [2022-07-14 04:29:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:29:51,351 INFO L225 Difference]: With dead ends: 9235 [2022-07-14 04:29:51,351 INFO L226 Difference]: Without dead ends: 5276 [2022-07-14 04:29:51,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-07-14 04:29:51,367 INFO L413 NwaCegarLoop]: 6430 mSDtfsCounter, 2129 mSDsluCounter, 61567 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 67997 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-14 04:29:51,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 67997 Invalid, 971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [431 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-14 04:29:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2022-07-14 04:29:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 3975. [2022-07-14 04:29:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2810 states have (on average 1.3395017793594306) internal successors, (3764), 2871 states have internal predecessors, (3764), 983 states have call successors, (983), 183 states have call predecessors, (983), 180 states have return successors, (984), 963 states have call predecessors, (984), 983 states have call successors, (984) [2022-07-14 04:29:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5731 transitions. [2022-07-14 04:29:51,639 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5731 transitions. Word has length 188 [2022-07-14 04:29:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:29:51,639 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5731 transitions. [2022-07-14 04:29:51,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-14 04:29:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5731 transitions. [2022-07-14 04:29:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-14 04:29:51,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:29:51,650 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:29:51,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 04:29:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:29:51,864 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-07-14 04:29:51,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:29:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1730861329, now seen corresponding path program 1 times [2022-07-14 04:29:51,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:29:51,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897247418] [2022-07-14 04:29:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:29:51,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:29:51,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:29:51,868 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 04:29:51,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 04:29:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:29:54,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 04:29:54,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:29:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-14 04:29:56,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:29:56,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:29:56,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897247418] [2022-07-14 04:29:56,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897247418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:29:56,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:29:56,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 04:29:56,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540593979] [2022-07-14 04:29:56,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:29:56,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 04:29:56,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:29:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 04:29:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-14 04:29:56,244 INFO L87 Difference]: Start difference. First operand 3975 states and 5731 transitions. Second operand has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-14 04:30:05,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:30:05,763 INFO L93 Difference]: Finished difference Result 8594 states and 12432 transitions. [2022-07-14 04:30:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 04:30:05,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 214 [2022-07-14 04:30:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:30:05,782 INFO L225 Difference]: With dead ends: 8594 [2022-07-14 04:30:05,782 INFO L226 Difference]: Without dead ends: 4635 [2022-07-14 04:30:05,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2022-07-14 04:30:05,803 INFO L413 NwaCegarLoop]: 6312 mSDtfsCounter, 2133 mSDsluCounter, 66754 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 73066 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:30:05,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 73066 Invalid, 1026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-14 04:30:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states.