./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 791161d1 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-?-791161d [2022-07-23 04:01:23,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 04:01:23,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 04:01:23,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 04:01:23,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 04:01:23,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 04:01:23,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 04:01:23,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 04:01:23,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 04:01:23,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 04:01:23,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 04:01:23,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 04:01:23,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 04:01:23,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 04:01:23,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 04:01:23,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 04:01:23,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 04:01:23,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 04:01:23,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 04:01:23,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 04:01:23,739 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 04:01:23,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 04:01:23,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 04:01:23,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 04:01:23,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 04:01:23,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 04:01:23,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 04:01:23,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 04:01:23,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 04:01:23,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 04:01:23,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 04:01:23,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 04:01:23,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 04:01:23,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 04:01:23,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 04:01:23,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 04:01:23,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 04:01:23,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 04:01:23,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 04:01:23,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 04:01:23,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 04:01:23,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 04:01:23,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 04:01:23,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 04:01:23,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 04:01:23,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 04:01:23,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 04:01:23,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 04:01:23,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 04:01:23,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 04:01:23,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 04:01:23,793 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 04:01:23,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 04:01:23,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 04:01:23,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 04:01:23,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 04:01:23,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 04:01:23,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 04:01:23,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 04:01:23,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:01:23,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 04:01:23,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 04:01:23,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 04:01:23,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 04:01:23,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 04:01:23,797 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 04:01:23,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 04:01:23,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 04:01:23,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-23 04:01:24,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 04:01:24,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 04:01:24,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 04:01:24,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 04:01:24,059 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 04:01:24,061 INFO L432 ainManager$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 [2022-07-23 04:01:24,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d20302af/9c19d04105fa47d0b12eea42e2f302d8/FLAG68e5ed882 [2022-07-23 04:01:24,991 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 04:01:24,992 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 [2022-07-23 04:01:25,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d20302af/9c19d04105fa47d0b12eea42e2f302d8/FLAG68e5ed882 [2022-07-23 04:01:25,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d20302af/9c19d04105fa47d0b12eea42e2f302d8 [2022-07-23 04:01:25,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 04:01:25,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 04:01:25,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 04:01:25,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 04:01:25,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 04:01:25,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:01:25" (1/1) ... [2022-07-23 04:01:25,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b4aff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:25, skipping insertion in model container [2022-07-23 04:01:25,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:01:25" (1/1) ... [2022-07-23 04:01:25,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 04:01:25,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:01:29,690 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] [2022-07-23 04:01:29,694 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] [2022-07-23 04:01:29,695 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] [2022-07-23 04:01:29,701 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] [2022-07-23 04:01:29,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:01:29,790 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 04:01:30,269 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] [2022-07-23 04:01:30,270 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] [2022-07-23 04:01:30,270 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] [2022-07-23 04:01:30,271 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] [2022-07-23 04:01:30,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:01:30,457 INFO L208 MainTranslator]: Completed translation [2022-07-23 04:01:30,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:30 WrapperNode [2022-07-23 04:01:30,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 04:01:30,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 04:01:30,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 04:01:30,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 04:01:30,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:30" (1/1) ... [2022-07-23 04:01:30,574 ERROR L1136 TypeChecker]: C: lp->phy[lp->active].spd.value [10596]: Undeclared identifier #t~mem1644 in IdentifierExpression[#t~mem1644,] [2022-07-23 04:01:30,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:30" (1/1) ... [2022-07-23 04:01:30,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 04:01:30,634 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2022-07-23 04:01:30,637 INFO L158 Benchmark]: Toolchain (without parser) took 5524.34ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 56.0MB in the beginning and 66.4MB in the end (delta: -10.4MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2022-07-23 04:01:30,637 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 102.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 04:01:30,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5345.02ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 55.8MB in the beginning and 75.8MB in the end (delta: -20.0MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. [2022-07-23 04:01:30,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 175.43ms. Allocated memory is still 205.5MB. Free memory was 75.8MB in the beginning and 66.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 04:01:30,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 102.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5345.02ms. Allocated memory was 102.8MB in the beginning and 205.5MB in the end (delta: 102.8MB). Free memory was 55.8MB in the beginning and 75.8MB in the end (delta: -20.0MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 175.43ms. Allocated memory is still 205.5MB. Free memory was 75.8MB in the beginning and 66.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. 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-?-791161d [2022-07-23 04:01:32,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 04:01:32,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 04:01:32,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 04:01:32,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 04:01:32,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 04:01:32,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 04:01:32,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 04:01:32,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 04:01:32,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 04:01:32,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 04:01:32,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 04:01:32,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 04:01:32,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 04:01:32,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 04:01:32,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 04:01:32,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 04:01:32,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 04:01:32,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 04:01:32,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 04:01:32,703 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 04:01:32,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 04:01:32,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 04:01:32,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 04:01:32,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 04:01:32,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 04:01:32,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 04:01:32,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 04:01:32,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 04:01:32,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 04:01:32,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 04:01:32,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 04:01:32,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 04:01:32,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 04:01:32,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 04:01:32,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 04:01:32,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 04:01:32,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 04:01:32,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 04:01:32,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 04:01:32,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 04:01:32,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 04:01:32,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 04:01:32,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 04:01:32,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 04:01:32,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 04:01:32,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 04:01:32,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 04:01:32,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 04:01:32,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 04:01:32,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 04:01:32,776 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 04:01:32,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 04:01:32,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 04:01:32,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 04:01:32,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 04:01:32,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 04:01:32,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 04:01:32,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 04:01:32,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 04:01:32,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 04:01:32,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 04:01:32,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 04:01:32,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 04:01:32,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 04:01:32,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 04:01:32,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:01:32,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 04:01:32,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 04:01:32,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 04:01:32,781 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 04:01:32,781 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 04:01:32,781 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 04:01:32,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 04:01:32,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 04:01:32,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 04:01:32,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-23 04:01:33,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 04:01:33,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 04:01:33,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 04:01:33,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 04:01:33,115 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 04:01:33,117 INFO L432 ainManager$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 [2022-07-23 04:01:33,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4040a1439/d2f674591dc24ff588653e24b434177a/FLAG0c10dd436 [2022-07-23 04:01:34,162 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 04:01:34,163 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 [2022-07-23 04:01:34,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4040a1439/d2f674591dc24ff588653e24b434177a/FLAG0c10dd436 [2022-07-23 04:01:34,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4040a1439/d2f674591dc24ff588653e24b434177a [2022-07-23 04:01:34,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 04:01:34,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 04:01:34,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 04:01:34,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 04:01:34,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 04:01:34,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:01:34" (1/1) ... [2022-07-23 04:01:34,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9221de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:34, skipping insertion in model container [2022-07-23 04:01:34,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:01:34" (1/1) ... [2022-07-23 04:01:34,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 04:01:34,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:01:39,368 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] [2022-07-23 04:01:39,371 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] [2022-07-23 04:01:39,372 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] [2022-07-23 04:01:39,372 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] [2022-07-23 04:01:39,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:01:39,442 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 04:01:39,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:01:39,936 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] [2022-07-23 04:01:39,936 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] [2022-07-23 04:01:39,937 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] [2022-07-23 04:01:39,937 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] [2022-07-23 04:01:39,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:01:39,954 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 04:01:40,500 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] [2022-07-23 04:01:40,501 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] [2022-07-23 04:01:40,502 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[471149,471162] [2022-07-23 04:01:40,503 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] [2022-07-23 04:01:40,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:01:40,675 INFO L208 MainTranslator]: Completed translation [2022-07-23 04:01:40,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40 WrapperNode [2022-07-23 04:01:40,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 04:01:40,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 04:01:40,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 04:01:40,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 04:01:40,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:40,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,029 INFO L137 Inliner]: procedures = 540, calls = 4106, calls flagged for inlining = 232, calls inlined = 215, statements flattened = 8209 [2022-07-23 04:01:41,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 04:01:41,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 04:01:41,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 04:01:41,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 04:01:41,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 04:01:41,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 04:01:41,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 04:01:41,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 04:01:41,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (1/1) ... [2022-07-23 04:01:41,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:01:41,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 04:01:41,436 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) [2022-07-23 04:01:41,459 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 [2022-07-23 04:01:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-07-23 04:01:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-07-23 04:01:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 04:01:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 04:01:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 04:01:41,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 04:01:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 04:01:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 04:01:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-07-23 04:01:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-07-23 04:01:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-07-23 04:01:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-07-23 04:01:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-23 04:01:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-23 04:01:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-23 04:01:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-23 04:01:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 04:01:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 04:01:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-23 04:01:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-23 04:01:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-07-23 04:01:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-07-23 04:01:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-07-23 04:01:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-07-23 04:01:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 04:01:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 04:01:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-07-23 04:01:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-07-23 04:01:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-23 04:01:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-23 04:01:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 04:01:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 04:01:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-07-23 04:01:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-07-23 04:01:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-07-23 04:01:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-07-23 04:01:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-23 04:01:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-23 04:01:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-07-23 04:01:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-07-23 04:01:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-23 04:01:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-23 04:01:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-07-23 04:01:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-07-23 04:01:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-23 04:01:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-23 04:01:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 04:01:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 04:01:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-07-23 04:01:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-07-23 04:01:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-23 04:01:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-23 04:01:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 04:01:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 04:01:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 04:01:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 04:01:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-23 04:01:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-07-23 04:01:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-07-23 04:01:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 04:01:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-23 04:01:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-23 04:01:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 04:01:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-23 04:01:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-23 04:01:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 04:01:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 04:01:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 04:01:41,492 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 04:01:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-07-23 04:01:41,492 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-07-23 04:01:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 04:01:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 04:01:41,559 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 04:01:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 04:01:41,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 04:01:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-07-23 04:01:41,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 04:01:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 04:01:41,562 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 04:01:41,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 04:01:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-07-23 04:01:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-23 04:01:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-07-23 04:01:41,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-07-23 04:01:41,563 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 04:01:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-23 04:01:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-07-23 04:01:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-07-23 04:01:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 04:01:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-07-23 04:01:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 04:01:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 04:01:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-07-23 04:01:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 04:01:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-07-23 04:01:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 04:01:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-23 04:01:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-23 04:01:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-07-23 04:01:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-07-23 04:01:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-07-23 04:01:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-07-23 04:01:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 04:01:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 04:01:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-07-23 04:01:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-07-23 04:01:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-07-23 04:01:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-07-23 04:01:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-07-23 04:01:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-07-23 04:01:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-07-23 04:01:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-07-23 04:01:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-07-23 04:01:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-07-23 04:01:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 04:01:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 04:01:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-07-23 04:01:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-07-23 04:01:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 04:01:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 04:01:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-07-23 04:01:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-07-23 04:01:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-07-23 04:01:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-07-23 04:01:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-07-23 04:01:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-07-23 04:01:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-07-23 04:01:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-07-23 04:01:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 04:01:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 04:01:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-07-23 04:01:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-07-23 04:01:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 04:01:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-07-23 04:01:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-07-23 04:01:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-07-23 04:01:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-07-23 04:01:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-07-23 04:01:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-07-23 04:01:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-07-23 04:01:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-07-23 04:01:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 04:01:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-07-23 04:01:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-07-23 04:01:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-23 04:01:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-23 04:01:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 04:01:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 04:01:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 04:01:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 04:01:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 04:01:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 04:01:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 04:01:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-07-23 04:01:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-07-23 04:01:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 04:01:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 04:01:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-07-23 04:01:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-07-23 04:01:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-07-23 04:01:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-07-23 04:01:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 04:01:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 04:01:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 04:01:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 04:01:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-23 04:01:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-23 04:01:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-07-23 04:01:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-07-23 04:01:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 04:01:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 04:01:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-23 04:01:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-23 04:01:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-07-23 04:01:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-07-23 04:01:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-07-23 04:01:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-07-23 04:01:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-07-23 04:01:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-07-23 04:01:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-23 04:01:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-23 04:01:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-23 04:01:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-23 04:01:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 04:01:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 04:01:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 04:01:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 04:01:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-07-23 04:01:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-07-23 04:01:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 04:01:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 04:01:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-23 04:01:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-23 04:01:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-07-23 04:01:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-07-23 04:01:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-07-23 04:01:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-07-23 04:01:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-07-23 04:01:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-07-23 04:01:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 04:01:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 04:01:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 04:01:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 04:01:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 04:01:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 04:01:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-07-23 04:01:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-07-23 04:01:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-23 04:01:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-23 04:01:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-07-23 04:01:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-07-23 04:01:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 04:01:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 04:01:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-07-23 04:01:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-07-23 04:01:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-07-23 04:01:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-07-23 04:01:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-07-23 04:01:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-07-23 04:01:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-07-23 04:01:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-07-23 04:01:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 04:01:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 04:01:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-07-23 04:01:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-07-23 04:01:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-07-23 04:01:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-07-23 04:01:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-07-23 04:01:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-07-23 04:01:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-07-23 04:01:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-07-23 04:01:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-07-23 04:01:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-07-23 04:01:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-07-23 04:01:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-07-23 04:01:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 04:01:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 04:01:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-07-23 04:01:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-07-23 04:01:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-07-23 04:01:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-07-23 04:01:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-23 04:01:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-23 04:01:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-07-23 04:01:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-07-23 04:01:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-07-23 04:01:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-07-23 04:01:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-07-23 04:01:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-07-23 04:01:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 04:01:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 04:01:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-23 04:01:42,700 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 04:01:42,703 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 04:01:46,596 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 04:03:07,959 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 04:03:07,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 04:03:07,982 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-23 04:03:07,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:03:07 BoogieIcfgContainer [2022-07-23 04:03:07,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 04:03:07,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 04:03:07,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 04:03:07,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 04:03:07,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 04:01:34" (1/3) ... [2022-07-23 04:03:07,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404141d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:03:07, skipping insertion in model container [2022-07-23 04:03:07,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:01:40" (2/3) ... [2022-07-23 04:03:07,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404141d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:03:07, skipping insertion in model container [2022-07-23 04:03:07,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:03:07" (3/3) ... [2022-07-23 04:03:07,999 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-23 04:03:08,013 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 04:03:08,014 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 04:03:08,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 04:03:08,166 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@554b1028, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13a9815a [2022-07-23 04:03:08,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 04:03:08,183 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) [2022-07-23 04:03:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 04:03:08,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:08,192 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] [2022-07-23 04:03:08,192 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)] === [2022-07-23 04:03:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1763242755, now seen corresponding path program 1 times [2022-07-23 04:03:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:08,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858749008] [2022-07-23 04:03:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:08,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:08,224 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) [2022-07-23 04:03:08,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 04:03:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:10,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:10,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 04:03:11,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:03:11,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:11,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858749008] [2022-07-23 04:03:11,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858749008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:03:11,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:03:11,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 04:03:11,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280232396] [2022-07-23 04:03:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:11,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:11,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:11,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 04:03:11,451 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) [2022-07-23 04:03:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:12,353 INFO L93 Difference]: Finished difference Result 7523 states and 11247 transitions. [2022-07-23 04:03:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 04:03:12,356 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 [2022-07-23 04:03:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:12,412 INFO L225 Difference]: With dead ends: 7523 [2022-07-23 04:03:12,412 INFO L226 Difference]: Without dead ends: 3736 [2022-07-23 04:03:12,458 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 [2022-07-23 04:03:12,466 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 [2022-07-23 04:03:12,468 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] [2022-07-23 04:03:12,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2022-07-23 04:03:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2022-07-23 04:03:12,759 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) [2022-07-23 04:03:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5445 transitions. [2022-07-23 04:03:12,807 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5445 transitions. Word has length 48 [2022-07-23 04:03:12,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:12,808 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5445 transitions. [2022-07-23 04:03:12,809 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) [2022-07-23 04:03:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5445 transitions. [2022-07-23 04:03:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 04:03:12,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:12,813 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] [2022-07-23 04:03:12,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:13,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:13,028 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)] === [2022-07-23 04:03:13,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash -524435869, now seen corresponding path program 1 times [2022-07-23 04:03:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540606090] [2022-07-23 04:03:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:13,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:13,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:13,034 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) [2022-07-23 04:03:13,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 04:03:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:14,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:14,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 04:03:16,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 04:03:16,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:16,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540606090] [2022-07-23 04:03:16,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540606090] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:03:16,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:03:16,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:03:16,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111320116] [2022-07-23 04:03:16,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:16,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:16,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:16,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:03:16,919 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) [2022-07-23 04:03:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:17,847 INFO L93 Difference]: Finished difference Result 3742 states and 5450 transitions. [2022-07-23 04:03:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:03:17,847 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 [2022-07-23 04:03:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:17,882 INFO L225 Difference]: With dead ends: 3742 [2022-07-23 04:03:17,882 INFO L226 Difference]: Without dead ends: 3740 [2022-07-23 04:03:17,886 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 [2022-07-23 04:03:17,888 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 [2022-07-23 04:03:17,890 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] [2022-07-23 04:03:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-07-23 04:03:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2022-07-23 04:03:18,049 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) [2022-07-23 04:03:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5448 transitions. [2022-07-23 04:03:18,093 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5448 transitions. Word has length 53 [2022-07-23 04:03:18,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:18,094 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 5448 transitions. [2022-07-23 04:03:18,094 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) [2022-07-23 04:03:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5448 transitions. [2022-07-23 04:03:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 04:03:18,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:18,103 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] [2022-07-23 04:03:18,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:18,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:18,324 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)] === [2022-07-23 04:03:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash 77141117, now seen corresponding path program 1 times [2022-07-23 04:03:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643189318] [2022-07-23 04:03:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:18,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:18,331 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) [2022-07-23 04:03:18,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 04:03:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:19,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:19,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 04:03:21,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 04:03:22,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:22,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643189318] [2022-07-23 04:03:22,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643189318] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:03:22,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:03:22,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:03:22,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388941895] [2022-07-23 04:03:22,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:22,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:03:22,191 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) [2022-07-23 04:03:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:23,010 INFO L93 Difference]: Finished difference Result 3746 states and 5453 transitions. [2022-07-23 04:03:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:03:23,010 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 [2022-07-23 04:03:23,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:23,042 INFO L225 Difference]: With dead ends: 3746 [2022-07-23 04:03:23,042 INFO L226 Difference]: Without dead ends: 3744 [2022-07-23 04:03:23,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 04:03:23,050 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 [2022-07-23 04:03:23,051 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] [2022-07-23 04:03:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-07-23 04:03:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-07-23 04:03:23,215 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) [2022-07-23 04:03:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5451 transitions. [2022-07-23 04:03:23,250 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5451 transitions. Word has length 58 [2022-07-23 04:03:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:23,251 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 5451 transitions. [2022-07-23 04:03:23,252 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) [2022-07-23 04:03:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5451 transitions. [2022-07-23 04:03:23,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-23 04:03:23,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:23,255 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] [2022-07-23 04:03:23,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:23,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:23,468 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)] === [2022-07-23 04:03:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:23,469 INFO L85 PathProgramCache]: Analyzing trace with hash 667830667, now seen corresponding path program 1 times [2022-07-23 04:03:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258325428] [2022-07-23 04:03:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:23,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:23,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:23,473 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) [2022-07-23 04:03:23,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 04:03:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:25,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-23 04:03:25,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-23 04:03:27,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-23 04:03:30,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:30,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258325428] [2022-07-23 04:03:30,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258325428] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 04:03:30,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 04:03:30,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-23 04:03:30,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974316068] [2022-07-23 04:03:30,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 04:03:30,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 04:03:30,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 04:03:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-23 04:03:30,700 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) [2022-07-23 04:03:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:41,840 INFO L93 Difference]: Finished difference Result 3798 states and 5518 transitions. [2022-07-23 04:03:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 04:03:41,841 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 [2022-07-23 04:03:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:41,880 INFO L225 Difference]: With dead ends: 3798 [2022-07-23 04:03:41,880 INFO L226 Difference]: Without dead ends: 3758 [2022-07-23 04:03:41,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-23 04:03:41,888 INFO L413 NwaCegarLoop]: 5406 mSDtfsCounter, 42 mSDsluCounter, 80951 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 8.5s IncrementalHoareTripleChecker+Time [2022-07-23 04:03:41,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86357 Invalid, 782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-07-23 04:03:41,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-23 04:03:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3754. [2022-07-23 04:03:42,057 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) [2022-07-23 04:03:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5463 transitions. [2022-07-23 04:03:42,083 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5463 transitions. Word has length 70 [2022-07-23 04:03:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5463 transitions. [2022-07-23 04:03:42,083 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) [2022-07-23 04:03:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5463 transitions. [2022-07-23 04:03:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-23 04:03:42,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:42,086 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] [2022-07-23 04:03:42,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:42,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:42,307 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)] === [2022-07-23 04:03:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash -18966941, now seen corresponding path program 1 times [2022-07-23 04:03:42,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:42,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088999570] [2022-07-23 04:03:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:42,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:42,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:42,311 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) [2022-07-23 04:03:42,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 04:03:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:43,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:43,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-23 04:03:45,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-23 04:03:46,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:46,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088999570] [2022-07-23 04:03:46,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088999570] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:03:46,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:03:46,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:03:46,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494612282] [2022-07-23 04:03:46,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:46,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:46,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:46,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:46,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:03:46,040 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) [2022-07-23 04:03:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:46,720 INFO L93 Difference]: Finished difference Result 3760 states and 5468 transitions. [2022-07-23 04:03:46,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:03:46,721 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 [2022-07-23 04:03:46,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:46,751 INFO L225 Difference]: With dead ends: 3760 [2022-07-23 04:03:46,752 INFO L226 Difference]: Without dead ends: 3758 [2022-07-23 04:03:46,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 04:03:46,757 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 [2022-07-23 04:03:46,757 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] [2022-07-23 04:03:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-23 04:03:46,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2022-07-23 04:03:46,998 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) [2022-07-23 04:03:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5466 transitions. [2022-07-23 04:03:47,025 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5466 transitions. Word has length 63 [2022-07-23 04:03:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:47,026 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5466 transitions. [2022-07-23 04:03:47,027 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) [2022-07-23 04:03:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5466 transitions. [2022-07-23 04:03:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 04:03:47,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:47,028 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] [2022-07-23 04:03:47,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:47,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:47,244 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)] === [2022-07-23 04:03:47,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:47,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1366911997, now seen corresponding path program 1 times [2022-07-23 04:03:47,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:47,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86502050] [2022-07-23 04:03:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:47,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:47,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:47,247 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) [2022-07-23 04:03:47,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 04:03:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:48,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:48,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-23 04:03:50,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-23 04:03:51,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:51,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86502050] [2022-07-23 04:03:51,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86502050] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:03:51,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:03:51,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:03:51,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322445790] [2022-07-23 04:03:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:51,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:03:51,091 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) [2022-07-23 04:03:51,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:51,795 INFO L93 Difference]: Finished difference Result 3764 states and 5471 transitions. [2022-07-23 04:03:51,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:03:51,796 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 [2022-07-23 04:03:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:51,824 INFO L225 Difference]: With dead ends: 3764 [2022-07-23 04:03:51,824 INFO L226 Difference]: Without dead ends: 3762 [2022-07-23 04:03:51,829 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 [2022-07-23 04:03:51,829 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 [2022-07-23 04:03:51,830 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] [2022-07-23 04:03:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2022-07-23 04:03:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3762. [2022-07-23 04:03:51,990 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) [2022-07-23 04:03:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 5469 transitions. [2022-07-23 04:03:52,012 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 5469 transitions. Word has length 68 [2022-07-23 04:03:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:52,013 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 5469 transitions. [2022-07-23 04:03:52,013 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) [2022-07-23 04:03:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 5469 transitions. [2022-07-23 04:03:52,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-23 04:03:52,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:52,014 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] [2022-07-23 04:03:52,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:52,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:52,228 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)] === [2022-07-23 04:03:52,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash 239279715, now seen corresponding path program 1 times [2022-07-23 04:03:52,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:52,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495649802] [2022-07-23 04:03:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:52,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:52,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:52,231 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) [2022-07-23 04:03:52,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 04:03:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:53,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:53,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:03:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-23 04:03:55,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:03:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-23 04:03:56,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:03:56,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495649802] [2022-07-23 04:03:56,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495649802] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:03:56,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:03:56,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:03:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718971307] [2022-07-23 04:03:56,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:03:56,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:03:56,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:03:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:03:56,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:03:56,180 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) [2022-07-23 04:03:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:03:56,825 INFO L93 Difference]: Finished difference Result 3768 states and 5474 transitions. [2022-07-23 04:03:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:03:56,826 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 [2022-07-23 04:03:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:03:56,852 INFO L225 Difference]: With dead ends: 3768 [2022-07-23 04:03:56,852 INFO L226 Difference]: Without dead ends: 3766 [2022-07-23 04:03:56,855 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 [2022-07-23 04:03:56,856 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 [2022-07-23 04:03:56,856 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] [2022-07-23 04:03:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-07-23 04:03:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3766. [2022-07-23 04:03:57,015 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) [2022-07-23 04:03:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5472 transitions. [2022-07-23 04:03:57,036 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5472 transitions. Word has length 73 [2022-07-23 04:03:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:03:57,036 INFO L495 AbstractCegarLoop]: Abstraction has 3766 states and 5472 transitions. [2022-07-23 04:03:57,037 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) [2022-07-23 04:03:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5472 transitions. [2022-07-23 04:03:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-23 04:03:57,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:03:57,041 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] [2022-07-23 04:03:57,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 04:03:57,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:03:57,244 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)] === [2022-07-23 04:03:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:03:57,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1407456125, now seen corresponding path program 1 times [2022-07-23 04:03:57,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:03:57,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297770295] [2022-07-23 04:03:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:03:57,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:03:57,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:03:57,248 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) [2022-07-23 04:03:57,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 04:03:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:03:58,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:03:58,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-23 04:04:00,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-23 04:04:01,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:01,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297770295] [2022-07-23 04:04:01,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297770295] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:01,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:01,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586200251] [2022-07-23 04:04:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:01,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:01,397 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) [2022-07-23 04:04:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:02,085 INFO L93 Difference]: Finished difference Result 3772 states and 5477 transitions. [2022-07-23 04:04:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:02,086 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 [2022-07-23 04:04:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:02,109 INFO L225 Difference]: With dead ends: 3772 [2022-07-23 04:04:02,110 INFO L226 Difference]: Without dead ends: 3770 [2022-07-23 04:04:02,114 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 [2022-07-23 04:04:02,115 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 [2022-07-23 04:04:02,115 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] [2022-07-23 04:04:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-07-23 04:04:02,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3770. [2022-07-23 04:04:02,282 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) [2022-07-23 04:04:02,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5475 transitions. [2022-07-23 04:04:02,303 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5475 transitions. Word has length 78 [2022-07-23 04:04:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:02,304 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5475 transitions. [2022-07-23 04:04:02,304 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) [2022-07-23 04:04:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5475 transitions. [2022-07-23 04:04:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 04:04:02,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:02,308 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] [2022-07-23 04:04:02,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:02,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:02,536 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)] === [2022-07-23 04:04:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:02,536 INFO L85 PathProgramCache]: Analyzing trace with hash -770746781, now seen corresponding path program 1 times [2022-07-23 04:04:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:02,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406091482] [2022-07-23 04:04:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:02,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:02,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:02,539 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) [2022-07-23 04:04:02,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 04:04:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:04,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:04,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 04:04:06,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 04:04:07,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:07,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406091482] [2022-07-23 04:04:07,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406091482] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:07,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:07,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:07,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863171585] [2022-07-23 04:04:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:07,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:07,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:07,003 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) [2022-07-23 04:04:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:07,714 INFO L93 Difference]: Finished difference Result 4065 states and 5835 transitions. [2022-07-23 04:04:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:07,714 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 [2022-07-23 04:04:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:07,737 INFO L225 Difference]: With dead ends: 4065 [2022-07-23 04:04:07,737 INFO L226 Difference]: Without dead ends: 4063 [2022-07-23 04:04:07,742 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 [2022-07-23 04:04:07,743 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 [2022-07-23 04:04:07,743 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] [2022-07-23 04:04:07,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2022-07-23 04:04:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4057. [2022-07-23 04:04:07,928 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) [2022-07-23 04:04:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5829 transitions. [2022-07-23 04:04:07,948 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5829 transitions. Word has length 83 [2022-07-23 04:04:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:07,949 INFO L495 AbstractCegarLoop]: Abstraction has 4057 states and 5829 transitions. [2022-07-23 04:04:07,949 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) [2022-07-23 04:04:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5829 transitions. [2022-07-23 04:04:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-23 04:04:07,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:07,950 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] [2022-07-23 04:04:07,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-23 04:04:08,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:08,164 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)] === [2022-07-23 04:04:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:08,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1623913731, now seen corresponding path program 1 times [2022-07-23 04:04:08,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:08,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227407856] [2022-07-23 04:04:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:08,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:08,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:08,168 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) [2022-07-23 04:04:08,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 04:04:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:09,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:09,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-23 04:04:11,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-23 04:04:12,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:12,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227407856] [2022-07-23 04:04:12,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227407856] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:12,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:12,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322552348] [2022-07-23 04:04:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:12,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:12,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:12,669 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) [2022-07-23 04:04:13,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:13,400 INFO L93 Difference]: Finished difference Result 4063 states and 5834 transitions. [2022-07-23 04:04:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:13,400 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 [2022-07-23 04:04:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:13,425 INFO L225 Difference]: With dead ends: 4063 [2022-07-23 04:04:13,425 INFO L226 Difference]: Without dead ends: 4061 [2022-07-23 04:04:13,430 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 [2022-07-23 04:04:13,431 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 [2022-07-23 04:04:13,431 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] [2022-07-23 04:04:13,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-07-23 04:04:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 4061. [2022-07-23 04:04:13,616 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) [2022-07-23 04:04:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4061 states to 4061 states and 5832 transitions. [2022-07-23 04:04:13,640 INFO L78 Accepts]: Start accepts. Automaton has 4061 states and 5832 transitions. Word has length 88 [2022-07-23 04:04:13,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:13,641 INFO L495 AbstractCegarLoop]: Abstraction has 4061 states and 5832 transitions. [2022-07-23 04:04:13,641 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) [2022-07-23 04:04:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4061 states and 5832 transitions. [2022-07-23 04:04:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-23 04:04:13,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:13,644 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] [2022-07-23 04:04:13,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:13,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:13,860 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)] === [2022-07-23 04:04:13,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:13,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1885814371, now seen corresponding path program 1 times [2022-07-23 04:04:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:13,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915707739] [2022-07-23 04:04:13,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:13,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:13,863 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) [2022-07-23 04:04:13,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 04:04:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:15,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:15,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-23 04:04:17,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-23 04:04:18,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:18,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915707739] [2022-07-23 04:04:18,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915707739] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:18,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:18,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184278770] [2022-07-23 04:04:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:18,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:18,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:18,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:18,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:18,275 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) [2022-07-23 04:04:19,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:19,038 INFO L93 Difference]: Finished difference Result 4067 states and 5837 transitions. [2022-07-23 04:04:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:19,039 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 [2022-07-23 04:04:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:19,059 INFO L225 Difference]: With dead ends: 4067 [2022-07-23 04:04:19,060 INFO L226 Difference]: Without dead ends: 4065 [2022-07-23 04:04:19,064 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 [2022-07-23 04:04:19,065 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 [2022-07-23 04:04:19,066 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] [2022-07-23 04:04:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2022-07-23 04:04:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2022-07-23 04:04:19,273 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) [2022-07-23 04:04:19,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5835 transitions. [2022-07-23 04:04:19,298 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5835 transitions. Word has length 93 [2022-07-23 04:04:19,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:19,299 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5835 transitions. [2022-07-23 04:04:19,299 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) [2022-07-23 04:04:19,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5835 transitions. [2022-07-23 04:04:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-23 04:04:19,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:19,302 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] [2022-07-23 04:04:19,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:19,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:19,524 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)] === [2022-07-23 04:04:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1137201789, now seen corresponding path program 1 times [2022-07-23 04:04:19,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:19,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959407095] [2022-07-23 04:04:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:19,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:19,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:19,527 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) [2022-07-23 04:04:19,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 04:04:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:21,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:21,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-23 04:04:23,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-23 04:04:24,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959407095] [2022-07-23 04:04:24,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959407095] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:24,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:24,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:24,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574181749] [2022-07-23 04:04:24,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:24,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:24,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:24,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:24,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:24,320 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) [2022-07-23 04:04:24,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:24,989 INFO L93 Difference]: Finished difference Result 4071 states and 5840 transitions. [2022-07-23 04:04:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:24,990 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 [2022-07-23 04:04:24,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:25,005 INFO L225 Difference]: With dead ends: 4071 [2022-07-23 04:04:25,006 INFO L226 Difference]: Without dead ends: 4069 [2022-07-23 04:04:25,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 04:04:25,009 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 [2022-07-23 04:04:25,009 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] [2022-07-23 04:04:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-07-23 04:04:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2022-07-23 04:04:25,175 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) [2022-07-23 04:04:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5838 transitions. [2022-07-23 04:04:25,193 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5838 transitions. Word has length 98 [2022-07-23 04:04:25,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:25,193 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5838 transitions. [2022-07-23 04:04:25,193 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) [2022-07-23 04:04:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5838 transitions. [2022-07-23 04:04:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 04:04:25,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:25,196 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] [2022-07-23 04:04:25,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:25,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:25,415 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)] === [2022-07-23 04:04:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:25,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1301359005, now seen corresponding path program 1 times [2022-07-23 04:04:25,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:25,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187004214] [2022-07-23 04:04:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:25,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:25,418 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) [2022-07-23 04:04:25,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 04:04:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:26,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:26,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-23 04:04:29,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-23 04:04:30,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:30,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187004214] [2022-07-23 04:04:30,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187004214] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:30,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:30,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439029564] [2022-07-23 04:04:30,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:30,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:30,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:30,009 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) [2022-07-23 04:04:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:30,665 INFO L93 Difference]: Finished difference Result 4075 states and 5843 transitions. [2022-07-23 04:04:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:30,665 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 [2022-07-23 04:04:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:30,685 INFO L225 Difference]: With dead ends: 4075 [2022-07-23 04:04:30,685 INFO L226 Difference]: Without dead ends: 4071 [2022-07-23 04:04:30,689 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 [2022-07-23 04:04:30,690 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 [2022-07-23 04:04:30,690 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] [2022-07-23 04:04:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2022-07-23 04:04:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 4071. [2022-07-23 04:04:30,880 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) [2022-07-23 04:04:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5839 transitions. [2022-07-23 04:04:30,900 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5839 transitions. Word has length 103 [2022-07-23 04:04:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:30,901 INFO L495 AbstractCegarLoop]: Abstraction has 4071 states and 5839 transitions. [2022-07-23 04:04:30,901 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) [2022-07-23 04:04:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5839 transitions. [2022-07-23 04:04:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-23 04:04:30,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:30,903 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] [2022-07-23 04:04:30,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:31,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:31,116 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)] === [2022-07-23 04:04:31,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1896224259, now seen corresponding path program 1 times [2022-07-23 04:04:31,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:31,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026250439] [2022-07-23 04:04:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:31,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:31,120 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) [2022-07-23 04:04:31,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 04:04:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:32,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 04:04:32,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-23 04:04:35,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-23 04:04:36,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:36,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026250439] [2022-07-23 04:04:36,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026250439] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 04:04:36,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 04:04:36,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 04:04:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67799449] [2022-07-23 04:04:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:36,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 04:04:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:36,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 04:04:36,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 04:04:36,130 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) [2022-07-23 04:04:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:36,835 INFO L93 Difference]: Finished difference Result 4071 states and 5839 transitions. [2022-07-23 04:04:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:04:36,835 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 [2022-07-23 04:04:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:36,855 INFO L225 Difference]: With dead ends: 4071 [2022-07-23 04:04:36,855 INFO L226 Difference]: Without dead ends: 3968 [2022-07-23 04:04:36,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 04:04:36,862 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 [2022-07-23 04:04:36,862 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] [2022-07-23 04:04:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-07-23 04:04:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3968. [2022-07-23 04:04:37,195 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) [2022-07-23 04:04:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5725 transitions. [2022-07-23 04:04:37,221 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5725 transitions. Word has length 108 [2022-07-23 04:04:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:37,222 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5725 transitions. [2022-07-23 04:04:37,222 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) [2022-07-23 04:04:37,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5725 transitions. [2022-07-23 04:04:37,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-23 04:04:37,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:37,235 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] [2022-07-23 04:04:37,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:37,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:37,444 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)] === [2022-07-23 04:04:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1429581440, now seen corresponding path program 1 times [2022-07-23 04:04:37,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:37,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730204065] [2022-07-23 04:04:37,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:37,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:37,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:37,450 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) [2022-07-23 04:04:37,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 04:04:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:39,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 04:04:39,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-23 04:04:40,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 04:04:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-23 04:04:42,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:42,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730204065] [2022-07-23 04:04:42,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730204065] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 04:04:42,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 04:04:42,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-23 04:04:42,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8151527] [2022-07-23 04:04:42,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 04:04:42,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 04:04:42,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:42,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 04:04:42,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 04:04:42,606 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) [2022-07-23 04:04:45,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:45,554 INFO L93 Difference]: Finished difference Result 7925 states and 11434 transitions. [2022-07-23 04:04:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 04:04:45,555 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 [2022-07-23 04:04:45,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:45,571 INFO L225 Difference]: With dead ends: 7925 [2022-07-23 04:04:45,571 INFO L226 Difference]: Without dead ends: 3970 [2022-07-23 04:04:45,600 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 [2022-07-23 04:04:45,600 INFO L413 NwaCegarLoop]: 5347 mSDtfsCounter, 750 mSDsluCounter, 25795 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-07-23 04:04:45,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 31142 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-23 04:04:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-07-23 04:04:45,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3968. [2022-07-23 04:04:45,808 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) [2022-07-23 04:04:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5724 transitions. [2022-07-23 04:04:45,832 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5724 transitions. Word has length 181 [2022-07-23 04:04:45,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:45,833 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5724 transitions. [2022-07-23 04:04:45,833 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) [2022-07-23 04:04:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5724 transitions. [2022-07-23 04:04:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 04:04:45,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:45,844 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] [2022-07-23 04:04:45,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:46,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:46,064 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)] === [2022-07-23 04:04:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -470737409, now seen corresponding path program 1 times [2022-07-23 04:04:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:46,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910034036] [2022-07-23 04:04:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:46,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:46,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:46,068 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) [2022-07-23 04:04:46,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 04:04:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:48,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 04:04:48,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:50,575 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-07-23 04:04:50,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:04:50,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:50,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910034036] [2022-07-23 04:04:50,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910034036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:04:50,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:04:50,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 04:04:50,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799965066] [2022-07-23 04:04:50,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:50,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:04:50,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:04:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:04:50,577 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) [2022-07-23 04:04:50,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:04:50,749 INFO L93 Difference]: Finished difference Result 7918 states and 11423 transitions. [2022-07-23 04:04:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:04:50,750 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 [2022-07-23 04:04:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:04:50,766 INFO L225 Difference]: With dead ends: 7918 [2022-07-23 04:04:50,767 INFO L226 Difference]: Without dead ends: 3967 [2022-07-23 04:04:50,797 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 [2022-07-23 04:04:50,798 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 [2022-07-23 04:04:50,798 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] [2022-07-23 04:04:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2022-07-23 04:04:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3967. [2022-07-23 04:04:51,042 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) [2022-07-23 04:04:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5721 transitions. [2022-07-23 04:04:51,068 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5721 transitions. Word has length 184 [2022-07-23 04:04:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:04:51,068 INFO L495 AbstractCegarLoop]: Abstraction has 3967 states and 5721 transitions. [2022-07-23 04:04:51,069 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) [2022-07-23 04:04:51,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5721 transitions. [2022-07-23 04:04:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-23 04:04:51,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:04:51,091 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] [2022-07-23 04:04:51,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 04:04:51,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:04:51,312 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)] === [2022-07-23 04:04:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:04:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash -929426377, now seen corresponding path program 1 times [2022-07-23 04:04:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:04:51,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554190259] [2022-07-23 04:04:51,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:04:51,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:04:51,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:04:51,318 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) [2022-07-23 04:04:51,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 04:04:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:04:53,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-23 04:04:53,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:04:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-23 04:04:55,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:04:55,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:04:55,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554190259] [2022-07-23 04:04:55,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554190259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:04:55,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:04:55,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 04:04:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37533230] [2022-07-23 04:04:55,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:04:55,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 04:04:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:04:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 04:04:55,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 04:04:55,362 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) [2022-07-23 04:05:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:05:03,173 INFO L93 Difference]: Finished difference Result 8572 states and 12404 transitions. [2022-07-23 04:05:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 04:05:03,174 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 [2022-07-23 04:05:03,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:05:03,190 INFO L225 Difference]: With dead ends: 8572 [2022-07-23 04:05:03,190 INFO L226 Difference]: Without dead ends: 4621 [2022-07-23 04:05:03,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-07-23 04:05:03,206 INFO L413 NwaCegarLoop]: 6304 mSDtfsCounter, 2125 mSDsluCounter, 60431 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 5.9s IncrementalHoareTripleChecker+Time [2022-07-23 04:05:03,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 66735 Invalid, 929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [424 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-23 04:05:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2022-07-23 04:05:03,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3975. [2022-07-23 04:05:03,439 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) [2022-07-23 04:05:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5731 transitions. [2022-07-23 04:05:03,462 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5731 transitions. Word has length 186 [2022-07-23 04:05:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:05:03,462 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5731 transitions. [2022-07-23 04:05:03,463 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) [2022-07-23 04:05:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5731 transitions. [2022-07-23 04:05:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-23 04:05:03,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:05:03,474 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] [2022-07-23 04:05:03,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 04:05:03,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:05:03,696 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)] === [2022-07-23 04:05:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:05:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 468489244, now seen corresponding path program 1 times [2022-07-23 04:05:03,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:05:03,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178102054] [2022-07-23 04:05:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:05:03,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:05:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:05:03,701 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) [2022-07-23 04:05:03,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 04:05:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:05:06,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-23 04:05:06,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:05:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-23 04:05:07,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:05:07,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:05:07,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178102054] [2022-07-23 04:05:07,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178102054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:05:07,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:05:07,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 04:05:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776030008] [2022-07-23 04:05:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:05:07,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 04:05:07,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:05:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 04:05:07,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-23 04:05:07,972 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)