./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_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-?-6c24879 [2022-07-12 16:44:01,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:44:01,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:44:01,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:44:01,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:44:01,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:44:01,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:44:01,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:44:01,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:44:01,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:44:01,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:44:01,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:44:01,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:44:01,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:44:01,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:44:01,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:44:01,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:44:01,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:44:01,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:44:01,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:44:01,177 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:44:01,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:44:01,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:44:01,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:44:01,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:44:01,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:44:01,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:44:01,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:44:01,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:44:01,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:44:01,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:44:01,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:44:01,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:44:01,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:44:01,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:44:01,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:44:01,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:44:01,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:44:01,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:44:01,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:44:01,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:44:01,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:44:01,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:44:01,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:44:01,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:44:01,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:44:01,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:44:01,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:44:01,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:44:01,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:44:01,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:44:01,235 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:44:01,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:44:01,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:44:01,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:44:01,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:44:01,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:44:01,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:44:01,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:44:01,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:44:01,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:44:01,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:44:01,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:44:01,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:44:01,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:44:01,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:44:01,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:44:01,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:44:01,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:44:01,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:44:01,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:44:01,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:44:01,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:44:01,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-12 16:44:01,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:44:01,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:44:01,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:44:01,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:44:01,470 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:44:01,471 INFO L432 ainManager$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 [2022-07-12 16:44:01,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e65580e/af940a6266da41f89f2f613a0f6c1853/FLAGb14f6cec7 [2022-07-12 16:44:02,239 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:44:02,239 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 [2022-07-12 16:44:02,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e65580e/af940a6266da41f89f2f613a0f6c1853/FLAGb14f6cec7 [2022-07-12 16:44:02,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e65580e/af940a6266da41f89f2f613a0f6c1853 [2022-07-12 16:44:02,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:44:02,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:44:02,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:44:02,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:44:02,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:44:02,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:44:02" (1/1) ... [2022-07-12 16:44:02,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e081ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:02, skipping insertion in model container [2022-07-12 16:44:02,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:44:02" (1/1) ... [2022-07-12 16:44:02,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:44:02,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:44:05,944 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] [2022-07-12 16:44:05,947 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] [2022-07-12 16:44:05,948 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] [2022-07-12 16:44:05,949 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] [2022-07-12 16:44:05,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:44:06,021 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:44:06,503 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[470813,470826] [2022-07-12 16:44:06,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-12 16:44:06,505 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] [2022-07-12 16:44:06,505 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] [2022-07-12 16:44:06,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:44:06,670 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:44:06,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:06 WrapperNode [2022-07-12 16:44:06,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:44:06,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:44:06,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:44:06,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:44:06,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:06" (1/1) ... [2022-07-12 16:44:06,762 ERROR L1136 TypeChecker]: C: lp->phy[lp->active].spd.value [10596]: Undeclared identifier #t~mem1644 in IdentifierExpression[#t~mem1644,] [2022-07-12 16:44:06,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:06" (1/1) ... [2022-07-12 16:44:06,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:44:06,801 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2022-07-12 16:44:06,802 INFO L158 Benchmark]: Toolchain (without parser) took 4254.62ms. Allocated memory was 115.3MB in the beginning and 239.1MB in the end (delta: 123.7MB). Free memory was 77.2MB in the beginning and 116.7MB in the end (delta: -39.5MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-07-12 16:44:06,803 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:44:06,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4123.51ms. Allocated memory was 115.3MB in the beginning and 239.1MB in the end (delta: 123.7MB). Free memory was 77.2MB in the beginning and 125.1MB in the end (delta: -47.9MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. [2022-07-12 16:44:06,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.58ms. Allocated memory is still 239.1MB. Free memory was 125.1MB in the beginning and 116.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 16:44:06,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4123.51ms. Allocated memory was 115.3MB in the beginning and 239.1MB in the end (delta: 123.7MB). Free memory was 77.2MB in the beginning and 125.1MB in the end (delta: -47.9MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.58ms. Allocated memory is still 239.1MB. Free memory was 125.1MB in the beginning and 116.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: 10596]: Type Error Undeclared identifier #t~mem1644 in IdentifierExpression[#t~mem1644,] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:44:08,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:44:08,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:44:08,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:44:08,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:44:08,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:44:08,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:44:08,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:44:08,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:44:08,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:44:08,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:44:08,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:44:08,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:44:08,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:44:08,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:44:08,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:44:08,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:44:08,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:44:08,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:44:08,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:44:08,599 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:44:08,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:44:08,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:44:08,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:44:08,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:44:08,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:44:08,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:44:08,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:44:08,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:44:08,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:44:08,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:44:08,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:44:08,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:44:08,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:44:08,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:44:08,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:44:08,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:44:08,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:44:08,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:44:08,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:44:08,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:44:08,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:44:08,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:44:08,661 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:44:08,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:44:08,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:44:08,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:44:08,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:44:08,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:44:08,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:44:08,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:44:08,664 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:44:08,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:44:08,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:44:08,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:44:08,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:44:08,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:44:08,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:44:08,674 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:44:08,674 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:44:08,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:44:08,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:44:08,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:44:08,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:44:08,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:44:08,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:44:08,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:44:08,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:44:08,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:44:08,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:44:08,677 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:44:08,677 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:44:08,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:44:08,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:44:08,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:44:08,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:44:08,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2022-07-12 16:44:08,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:44:09,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:44:09,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:44:09,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:44:09,022 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:44:09,024 INFO L432 ainManager$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 [2022-07-12 16:44:09,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a951d0f8/5f42473676b447b4b9780988c9bb87b0/FLAG8e9e81405 [2022-07-12 16:44:09,967 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:44:09,967 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 [2022-07-12 16:44:10,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a951d0f8/5f42473676b447b4b9780988c9bb87b0/FLAG8e9e81405 [2022-07-12 16:44:10,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a951d0f8/5f42473676b447b4b9780988c9bb87b0 [2022-07-12 16:44:10,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:44:10,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:44:10,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:44:10,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:44:10,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:44:10,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:44:10" (1/1) ... [2022-07-12 16:44:10,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd0075a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:10, skipping insertion in model container [2022-07-12 16:44:10,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:44:10" (1/1) ... [2022-07-12 16:44:10,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:44:10,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:44:13,381 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] [2022-07-12 16:44:13,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2022-07-12 16:44:13,389 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] [2022-07-12 16:44:13,390 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] [2022-07-12 16:44:13,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:44:13,444 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:44:13,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:44:13,982 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] [2022-07-12 16:44:13,983 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] [2022-07-12 16:44:13,984 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] [2022-07-12 16:44:13,984 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] [2022-07-12 16:44:13,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:44:14,015 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:44:14,408 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] [2022-07-12 16:44:14,408 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] [2022-07-12 16:44:14,409 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] [2022-07-12 16:44:14,410 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] [2022-07-12 16:44:14,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:44:14,585 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:44:14,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14 WrapperNode [2022-07-12 16:44:14,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:44:14,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:44:14,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:44:14,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:44:14,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:14,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:14,960 INFO L137 Inliner]: procedures = 540, calls = 4106, calls flagged for inlining = 232, calls inlined = 215, statements flattened = 8209 [2022-07-12 16:44:14,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:44:14,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:44:14,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:44:14,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:44:14,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:14,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:44:15,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:44:15,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:44:15,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:44:15,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (1/1) ... [2022-07-12 16:44:15,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:44:15,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:44:15,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 16:44:15,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 16:44:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-07-12 16:44:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-07-12 16:44:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:44:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:44:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 16:44:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 16:44:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:44:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:44:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-07-12 16:44:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-07-12 16:44:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-07-12 16:44:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-07-12 16:44:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-07-12 16:44:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-07-12 16:44:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-12 16:44:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-07-12 16:44:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:44:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:44:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-12 16:44:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-07-12 16:44:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-07-12 16:44:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-07-12 16:44:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-07-12 16:44:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-07-12 16:44:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:44:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:44:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-07-12 16:44:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-07-12 16:44:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:44:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:44:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 16:44:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 16:44:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-07-12 16:44:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-07-12 16:44:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-07-12 16:44:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-07-12 16:44:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:44:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:44:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-07-12 16:44:15,418 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-07-12 16:44:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-12 16:44:15,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-12 16:44:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-07-12 16:44:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-07-12 16:44:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-12 16:44:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-12 16:44:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:44:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:44:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-07-12 16:44:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-07-12 16:44:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-12 16:44:15,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-12 16:44:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:44:15,420 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:44:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:44:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:44:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-12 16:44:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-07-12 16:44:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-07-12 16:44:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:44:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-12 16:44:15,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-12 16:44:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:44:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-12 16:44:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-12 16:44:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:44:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 16:44:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-12 16:44:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-12 16:44:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-07-12 16:44:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-07-12 16:44:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:44:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:44:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 16:44:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 16:44:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 16:44:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 16:44:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-07-12 16:44:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-07-12 16:44:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-07-12 16:44:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-07-12 16:44:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:44:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:44:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 16:44:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 16:44:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:44:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:44:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-12 16:44:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~C_INT [2022-07-12 16:44:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:44:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:44:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:44:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:44:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:44:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:44:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:44:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:44:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-07-12 16:44:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-07-12 16:44:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:44:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:44:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-07-12 16:44:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-07-12 16:44:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 16:44:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 16:44:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 16:44:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 16:44:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-07-12 16:44:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-07-12 16:44:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:44:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:44:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-12 16:44:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-12 16:44:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-07-12 16:44:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-07-12 16:44:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:44:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-07-12 16:44:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-07-12 16:44:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:44:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-07-12 16:44:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-07-12 16:44:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:44:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:44:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:44:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:44:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:44:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-07-12 16:44:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-07-12 16:44:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-12 16:44:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-12 16:44:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-07-12 16:44:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-07-12 16:44:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-07-12 16:44:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-07-12 16:44:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-07-12 16:44:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-07-12 16:44:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 16:44:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 16:44:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-07-12 16:44:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-07-12 16:44:15,444 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:44:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:44:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-07-12 16:44:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-07-12 16:44:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:44:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:44:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 16:44:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 16:44:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:44:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-07-12 16:44:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-07-12 16:44:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-07-12 16:44:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-07-12 16:44:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:44:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:44:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-07-12 16:44:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-07-12 16:44:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:44:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 16:44:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-07-12 16:44:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:44:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:44:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:44:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-07-12 16:44:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-07-12 16:44:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:44:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:44:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 16:44:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 16:44:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-07-12 16:44:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-07-12 16:44:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-07-12 16:44:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-07-12 16:44:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:44:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:44:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-07-12 16:44:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-07-12 16:44:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-07-12 16:44:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-07-12 16:44:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-07-12 16:44:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-07-12 16:44:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-07-12 16:44:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-07-12 16:44:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-07-12 16:44:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-07-12 16:44:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:44:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:44:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-07-12 16:44:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-07-12 16:44:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:44:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:44:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-07-12 16:44:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-07-12 16:44:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-07-12 16:44:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-07-12 16:44:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-07-12 16:44:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-07-12 16:44:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-07-12 16:44:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-07-12 16:44:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 16:44:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 16:44:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-07-12 16:44:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-07-12 16:44:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:44:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-07-12 16:44:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-07-12 16:44:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-07-12 16:44:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-07-12 16:44:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-07-12 16:44:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-07-12 16:44:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-07-12 16:44:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-07-12 16:44:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:44:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-07-12 16:44:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-07-12 16:44:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-12 16:44:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-12 16:44:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:44:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 16:44:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 16:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-07-12 16:44:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-07-12 16:44:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 16:44:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 16:44:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-07-12 16:44:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-07-12 16:44:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-07-12 16:44:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-07-12 16:44:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:44:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:44:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 16:44:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 16:44:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-12 16:44:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-12 16:44:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-07-12 16:44:15,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-07-12 16:44:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:44:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:44:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-12 16:44:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-12 16:44:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-07-12 16:44:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-07-12 16:44:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-07-12 16:44:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-07-12 16:44:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-07-12 16:44:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-07-12 16:44:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-12 16:44:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-12 16:44:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 16:44:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 16:44:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 16:44:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 16:44:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:44:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:44:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-07-12 16:44:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-07-12 16:44:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:44:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:44:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 16:44:15,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 16:44:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-07-12 16:44:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-07-12 16:44:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-07-12 16:44:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-07-12 16:44:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-07-12 16:44:15,467 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-07-12 16:44:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:44:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-07-12 16:44:15,468 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-07-12 16:44:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 16:44:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 16:44:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-07-12 16:44:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-07-12 16:44:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 16:44:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 16:44:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-07-12 16:44:15,469 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-07-12 16:44:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-07-12 16:44:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-07-12 16:44:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-07-12 16:44:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-07-12 16:44:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-07-12 16:44:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-07-12 16:44:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:44:15,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:44:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-07-12 16:44:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-07-12 16:44:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-07-12 16:44:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-07-12 16:44:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-07-12 16:44:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-07-12 16:44:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-07-12 16:44:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-07-12 16:44:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-07-12 16:44:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-07-12 16:44:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-07-12 16:44:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-07-12 16:44:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 16:44:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 16:44:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-07-12 16:44:15,472 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-07-12 16:44:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-07-12 16:44:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-07-12 16:44:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-12 16:44:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-12 16:44:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-07-12 16:44:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-07-12 16:44:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-07-12 16:44:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-07-12 16:44:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-07-12 16:44:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-07-12 16:44:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:44:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:44:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 16:44:16,657 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:44:16,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:44:19,781 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:45:29,259 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:45:29,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:45:29,279 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 16:45:29,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:45:29 BoogieIcfgContainer [2022-07-12 16:45:29,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:45:29,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:45:29,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:45:29,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:45:29,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:44:10" (1/3) ... [2022-07-12 16:45:29,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5f8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:45:29, skipping insertion in model container [2022-07-12 16:45:29,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:44:14" (2/3) ... [2022-07-12 16:45:29,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5f8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:45:29, skipping insertion in model container [2022-07-12 16:45:29,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:45:29" (3/3) ... [2022-07-12 16:45:29,290 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-07-12 16:45:29,301 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:45:29,301 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:45:29,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:45:29,411 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@6a9ad642, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d1adede [2022-07-12 16:45:29,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:45:29,426 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) [2022-07-12 16:45:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 16:45:29,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:45:29,433 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] [2022-07-12 16:45:29,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:45:29,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:45:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1763242755, now seen corresponding path program 1 times [2022-07-12 16:45:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:45:29,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399951191] [2022-07-12 16:45:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:29,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:45:29,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:45:29,456 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) [2022-07-12 16:45:29,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:45:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:31,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:45:31,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:45:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 16:45:32,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:45:32,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:45:32,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399951191] [2022-07-12 16:45:32,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399951191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:45:32,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:45:32,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:45:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597181739] [2022-07-12 16:45:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:45:32,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:45:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:45:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:45:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:45:32,312 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) [2022-07-12 16:45:33,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:45:33,094 INFO L93 Difference]: Finished difference Result 7523 states and 11247 transitions. [2022-07-12 16:45:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:45:33,096 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 [2022-07-12 16:45:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:45:33,134 INFO L225 Difference]: With dead ends: 7523 [2022-07-12 16:45:33,135 INFO L226 Difference]: Without dead ends: 3736 [2022-07-12 16:45:33,172 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 [2022-07-12 16:45:33,178 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 [2022-07-12 16:45:33,179 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] [2022-07-12 16:45:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2022-07-12 16:45:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2022-07-12 16:45:33,409 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) [2022-07-12 16:45:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5445 transitions. [2022-07-12 16:45:33,448 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5445 transitions. Word has length 48 [2022-07-12 16:45:33,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:45:33,448 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5445 transitions. [2022-07-12 16:45:33,449 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) [2022-07-12 16:45:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5445 transitions. [2022-07-12 16:45:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-12 16:45:33,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:45:33,452 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] [2022-07-12 16:45:33,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 16:45:33,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:45:33,672 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)] === [2022-07-12 16:45:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:45:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash -524435869, now seen corresponding path program 1 times [2022-07-12 16:45:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:45:33,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796795238] [2022-07-12 16:45:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:33,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:45:33,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:45:33,677 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) [2022-07-12 16:45:33,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:45:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:35,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:45:35,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:45:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 16:45:36,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:45:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 16:45:37,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:45:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796795238] [2022-07-12 16:45:37,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796795238] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:45:37,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:45:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:45:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739422015] [2022-07-12 16:45:37,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:45:37,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:45:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:45:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:45:37,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:45:37,171 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) [2022-07-12 16:45:37,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:45:37,996 INFO L93 Difference]: Finished difference Result 3742 states and 5450 transitions. [2022-07-12 16:45:37,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:45:37,997 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 [2022-07-12 16:45:37,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:45:38,025 INFO L225 Difference]: With dead ends: 3742 [2022-07-12 16:45:38,026 INFO L226 Difference]: Without dead ends: 3740 [2022-07-12 16:45:38,030 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 [2022-07-12 16:45:38,031 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 [2022-07-12 16:45:38,032 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] [2022-07-12 16:45:38,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-07-12 16:45:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2022-07-12 16:45:38,168 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) [2022-07-12 16:45:38,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5448 transitions. [2022-07-12 16:45:38,204 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5448 transitions. Word has length 53 [2022-07-12 16:45:38,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:45:38,205 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 5448 transitions. [2022-07-12 16:45:38,205 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) [2022-07-12 16:45:38,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5448 transitions. [2022-07-12 16:45:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 16:45:38,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:45:38,212 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] [2022-07-12 16:45:38,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:45:38,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:45:38,431 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)] === [2022-07-12 16:45:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:45:38,432 INFO L85 PathProgramCache]: Analyzing trace with hash 77141117, now seen corresponding path program 1 times [2022-07-12 16:45:38,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:45:38,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655280321] [2022-07-12 16:45:38,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:38,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:45:38,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:45:38,437 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) [2022-07-12 16:45:38,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:45:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:39,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:45:39,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:45:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 16:45:41,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:45:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 16:45:42,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:45:42,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655280321] [2022-07-12 16:45:42,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655280321] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:45:42,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:45:42,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:45:42,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389046111] [2022-07-12 16:45:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:45:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:45:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:45:42,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:45:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:45:42,061 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) [2022-07-12 16:45:42,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:45:42,803 INFO L93 Difference]: Finished difference Result 3746 states and 5453 transitions. [2022-07-12 16:45:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:45:42,804 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 [2022-07-12 16:45:42,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:45:42,830 INFO L225 Difference]: With dead ends: 3746 [2022-07-12 16:45:42,830 INFO L226 Difference]: Without dead ends: 3744 [2022-07-12 16:45:42,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:45:42,837 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 [2022-07-12 16:45:42,838 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] [2022-07-12 16:45:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-07-12 16:45:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-07-12 16:45:43,008 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) [2022-07-12 16:45:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5451 transitions. [2022-07-12 16:45:43,044 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5451 transitions. Word has length 58 [2022-07-12 16:45:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:45:43,045 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 5451 transitions. [2022-07-12 16:45:43,046 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) [2022-07-12 16:45:43,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5451 transitions. [2022-07-12 16:45:43,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 16:45:43,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:45:43,049 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] [2022-07-12 16:45:43,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:45:43,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:45:43,272 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)] === [2022-07-12 16:45:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:45:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash 667830667, now seen corresponding path program 1 times [2022-07-12 16:45:43,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:45:43,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915589188] [2022-07-12 16:45:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:43,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:45:43,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:45:43,279 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) [2022-07-12 16:45:43,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:45:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:44,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 16:45:44,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:45:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 16:45:47,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:45:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 16:45:50,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:45:50,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915589188] [2022-07-12 16:45:50,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915589188] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:45:50,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 16:45:50,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-12 16:45:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640265574] [2022-07-12 16:45:50,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 16:45:50,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-12 16:45:50,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:45:50,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-12 16:45:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-12 16:45:50,191 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) [2022-07-12 16:46:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:00,511 INFO L93 Difference]: Finished difference Result 3798 states and 5518 transitions. [2022-07-12 16:46:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 16:46:00,512 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 [2022-07-12 16:46:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:00,535 INFO L225 Difference]: With dead ends: 3798 [2022-07-12 16:46:00,535 INFO L226 Difference]: Without dead ends: 3758 [2022-07-12 16:46:00,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-12 16:46:00,539 INFO L413 NwaCegarLoop]: 5406 mSDtfsCounter, 42 mSDsluCounter, 80951 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86357 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:46:00,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86357 Invalid, 782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-12 16:46:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-12 16:46:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3754. [2022-07-12 16:46:00,667 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) [2022-07-12 16:46:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5463 transitions. [2022-07-12 16:46:00,687 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5463 transitions. Word has length 70 [2022-07-12 16:46:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:00,688 INFO L495 AbstractCegarLoop]: Abstraction has 3754 states and 5463 transitions. [2022-07-12 16:46:00,688 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) [2022-07-12 16:46:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5463 transitions. [2022-07-12 16:46:00,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 16:46:00,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:00,689 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] [2022-07-12 16:46:00,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:00,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:00,903 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)] === [2022-07-12 16:46:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash -18966941, now seen corresponding path program 1 times [2022-07-12 16:46:00,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:00,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706207170] [2022-07-12 16:46:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:00,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:00,908 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) [2022-07-12 16:46:00,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:46:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:02,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:02,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 16:46:03,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 16:46:04,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:04,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706207170] [2022-07-12 16:46:04,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706207170] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:04,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:04,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:04,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862620169] [2022-07-12 16:46:04,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:04,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:04,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:04,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:04,309 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) [2022-07-12 16:46:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:04,967 INFO L93 Difference]: Finished difference Result 3760 states and 5468 transitions. [2022-07-12 16:46:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:04,968 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 [2022-07-12 16:46:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:04,990 INFO L225 Difference]: With dead ends: 3760 [2022-07-12 16:46:04,991 INFO L226 Difference]: Without dead ends: 3758 [2022-07-12 16:46:04,993 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 [2022-07-12 16:46:04,993 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 [2022-07-12 16:46:04,994 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] [2022-07-12 16:46:05,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-07-12 16:46:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3758. [2022-07-12 16:46:05,134 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) [2022-07-12 16:46:05,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5466 transitions. [2022-07-12 16:46:05,154 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5466 transitions. Word has length 63 [2022-07-12 16:46:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:05,154 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5466 transitions. [2022-07-12 16:46:05,155 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) [2022-07-12 16:46:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5466 transitions. [2022-07-12 16:46:05,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 16:46:05,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:05,156 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] [2022-07-12 16:46:05,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:05,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:05,379 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)] === [2022-07-12 16:46:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:05,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1366911997, now seen corresponding path program 1 times [2022-07-12 16:46:05,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:05,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952612587] [2022-07-12 16:46:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:05,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:05,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:05,383 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) [2022-07-12 16:46:05,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:46:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:06,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:06,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-12 16:46:08,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-12 16:46:08,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:08,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952612587] [2022-07-12 16:46:08,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952612587] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:08,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:08,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665233530] [2022-07-12 16:46:08,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:08,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:08,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:08,972 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) [2022-07-12 16:46:09,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:09,609 INFO L93 Difference]: Finished difference Result 3764 states and 5471 transitions. [2022-07-12 16:46:09,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:09,609 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 [2022-07-12 16:46:09,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:09,629 INFO L225 Difference]: With dead ends: 3764 [2022-07-12 16:46:09,629 INFO L226 Difference]: Without dead ends: 3762 [2022-07-12 16:46:09,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:46:09,632 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 [2022-07-12 16:46:09,633 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] [2022-07-12 16:46:09,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2022-07-12 16:46:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3762. [2022-07-12 16:46:09,769 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) [2022-07-12 16:46:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 5469 transitions. [2022-07-12 16:46:09,788 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 5469 transitions. Word has length 68 [2022-07-12 16:46:09,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:09,788 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 5469 transitions. [2022-07-12 16:46:09,788 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) [2022-07-12 16:46:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 5469 transitions. [2022-07-12 16:46:09,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 16:46:09,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:09,790 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] [2022-07-12 16:46:09,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:10,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:10,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:10,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash 239279715, now seen corresponding path program 1 times [2022-07-12 16:46:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:10,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851329596] [2022-07-12 16:46:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:10,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:10,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:10,016 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) [2022-07-12 16:46:10,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:46:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:11,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:11,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 16:46:12,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 16:46:13,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:13,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851329596] [2022-07-12 16:46:13,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851329596] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:13,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:13,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:13,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414962208] [2022-07-12 16:46:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:13,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:13,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:13,673 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) [2022-07-12 16:46:14,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:14,305 INFO L93 Difference]: Finished difference Result 3768 states and 5474 transitions. [2022-07-12 16:46:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:14,306 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 [2022-07-12 16:46:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:14,326 INFO L225 Difference]: With dead ends: 3768 [2022-07-12 16:46:14,326 INFO L226 Difference]: Without dead ends: 3766 [2022-07-12 16:46:14,328 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 [2022-07-12 16:46:14,329 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 [2022-07-12 16:46:14,329 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] [2022-07-12 16:46:14,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-07-12 16:46:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3766. [2022-07-12 16:46:14,464 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) [2022-07-12 16:46:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5472 transitions. [2022-07-12 16:46:14,480 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5472 transitions. Word has length 73 [2022-07-12 16:46:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:14,482 INFO L495 AbstractCegarLoop]: Abstraction has 3766 states and 5472 transitions. [2022-07-12 16:46:14,482 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) [2022-07-12 16:46:14,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5472 transitions. [2022-07-12 16:46:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 16:46:14,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:14,485 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] [2022-07-12 16:46:14,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:14,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:14,699 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1407456125, now seen corresponding path program 1 times [2022-07-12 16:46:14,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:14,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069277418] [2022-07-12 16:46:14,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:14,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:14,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:14,704 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) [2022-07-12 16:46:14,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:46:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:16,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:16,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-12 16:46:17,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-12 16:46:18,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:18,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069277418] [2022-07-12 16:46:18,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069277418] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:18,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:18,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295167807] [2022-07-12 16:46:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:18,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:18,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:18,765 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) [2022-07-12 16:46:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:19,414 INFO L93 Difference]: Finished difference Result 3772 states and 5477 transitions. [2022-07-12 16:46:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:19,415 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 [2022-07-12 16:46:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:19,444 INFO L225 Difference]: With dead ends: 3772 [2022-07-12 16:46:19,445 INFO L226 Difference]: Without dead ends: 3770 [2022-07-12 16:46:19,447 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 [2022-07-12 16:46:19,448 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 [2022-07-12 16:46:19,448 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] [2022-07-12 16:46:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-07-12 16:46:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3770. [2022-07-12 16:46:19,643 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) [2022-07-12 16:46:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5475 transitions. [2022-07-12 16:46:19,659 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5475 transitions. Word has length 78 [2022-07-12 16:46:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:19,660 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5475 transitions. [2022-07-12 16:46:19,660 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) [2022-07-12 16:46:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5475 transitions. [2022-07-12 16:46:19,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 16:46:19,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:19,663 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] [2022-07-12 16:46:19,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:19,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:19,888 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash -770746781, now seen corresponding path program 1 times [2022-07-12 16:46:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:19,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912485075] [2022-07-12 16:46:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:19,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:19,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:19,891 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) [2022-07-12 16:46:19,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 16:46:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:21,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:21,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 16:46:23,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 16:46:23,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912485075] [2022-07-12 16:46:23,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912485075] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:23,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:23,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:23,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427548874] [2022-07-12 16:46:23,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:23,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:23,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:23,862 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) [2022-07-12 16:46:24,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:24,560 INFO L93 Difference]: Finished difference Result 4065 states and 5835 transitions. [2022-07-12 16:46:24,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:24,560 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 [2022-07-12 16:46:24,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:24,577 INFO L225 Difference]: With dead ends: 4065 [2022-07-12 16:46:24,577 INFO L226 Difference]: Without dead ends: 4063 [2022-07-12 16:46:24,579 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 [2022-07-12 16:46:24,580 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 [2022-07-12 16:46:24,580 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] [2022-07-12 16:46:24,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2022-07-12 16:46:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4057. [2022-07-12 16:46:24,740 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) [2022-07-12 16:46:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5829 transitions. [2022-07-12 16:46:24,760 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5829 transitions. Word has length 83 [2022-07-12 16:46:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:24,760 INFO L495 AbstractCegarLoop]: Abstraction has 4057 states and 5829 transitions. [2022-07-12 16:46:24,761 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) [2022-07-12 16:46:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5829 transitions. [2022-07-12 16:46:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-12 16:46:24,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:24,762 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] [2022-07-12 16:46:24,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:24,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:24,983 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:24,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1623913731, now seen corresponding path program 1 times [2022-07-12 16:46:24,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:24,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160909495] [2022-07-12 16:46:24,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:24,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:24,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:24,988 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) [2022-07-12 16:46:25,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 16:46:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:26,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:26,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-12 16:46:28,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-12 16:46:29,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:29,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160909495] [2022-07-12 16:46:29,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160909495] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:29,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:29,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:29,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143171931] [2022-07-12 16:46:29,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:29,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:29,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:29,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:29,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:29,254 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) [2022-07-12 16:46:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:29,909 INFO L93 Difference]: Finished difference Result 4063 states and 5834 transitions. [2022-07-12 16:46:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:29,909 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 [2022-07-12 16:46:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:29,923 INFO L225 Difference]: With dead ends: 4063 [2022-07-12 16:46:29,923 INFO L226 Difference]: Without dead ends: 4061 [2022-07-12 16:46:29,924 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 [2022-07-12 16:46:29,925 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 [2022-07-12 16:46:29,925 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] [2022-07-12 16:46:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-07-12 16:46:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 4061. [2022-07-12 16:46:30,081 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) [2022-07-12 16:46:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4061 states to 4061 states and 5832 transitions. [2022-07-12 16:46:30,099 INFO L78 Accepts]: Start accepts. Automaton has 4061 states and 5832 transitions. Word has length 88 [2022-07-12 16:46:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:30,100 INFO L495 AbstractCegarLoop]: Abstraction has 4061 states and 5832 transitions. [2022-07-12 16:46:30,100 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) [2022-07-12 16:46:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4061 states and 5832 transitions. [2022-07-12 16:46:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 16:46:30,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:30,101 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] [2022-07-12 16:46:30,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:30,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1885814371, now seen corresponding path program 1 times [2022-07-12 16:46:30,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:30,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017513149] [2022-07-12 16:46:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:30,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:30,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:30,319 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) [2022-07-12 16:46:30,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 16:46:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:31,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:31,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-12 16:46:33,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-12 16:46:34,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:34,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017513149] [2022-07-12 16:46:34,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017513149] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:34,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:34,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:34,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775260249] [2022-07-12 16:46:34,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:34,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:34,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:34,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:34,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:34,524 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) [2022-07-12 16:46:35,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:35,207 INFO L93 Difference]: Finished difference Result 4067 states and 5837 transitions. [2022-07-12 16:46:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:35,208 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 [2022-07-12 16:46:35,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:35,222 INFO L225 Difference]: With dead ends: 4067 [2022-07-12 16:46:35,223 INFO L226 Difference]: Without dead ends: 4065 [2022-07-12 16:46:35,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:46:35,226 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 [2022-07-12 16:46:35,226 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] [2022-07-12 16:46:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2022-07-12 16:46:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2022-07-12 16:46:35,388 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) [2022-07-12 16:46:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5835 transitions. [2022-07-12 16:46:35,406 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5835 transitions. Word has length 93 [2022-07-12 16:46:35,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:35,407 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 5835 transitions. [2022-07-12 16:46:35,407 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) [2022-07-12 16:46:35,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5835 transitions. [2022-07-12 16:46:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 16:46:35,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:35,411 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] [2022-07-12 16:46:35,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:35,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:35,623 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:46:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1137201789, now seen corresponding path program 1 times [2022-07-12 16:46:35,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:35,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261333320] [2022-07-12 16:46:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:35,625 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:35,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:35,626 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) [2022-07-12 16:46:35,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 16:46:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:37,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:37,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-12 16:46:39,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-12 16:46:40,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:40,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261333320] [2022-07-12 16:46:40,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261333320] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:40,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:40,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:40,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422245735] [2022-07-12 16:46:40,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:40,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:40,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:40,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:40,240 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) [2022-07-12 16:46:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:40,908 INFO L93 Difference]: Finished difference Result 4071 states and 5840 transitions. [2022-07-12 16:46:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:40,909 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 [2022-07-12 16:46:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:40,927 INFO L225 Difference]: With dead ends: 4071 [2022-07-12 16:46:40,927 INFO L226 Difference]: Without dead ends: 4069 [2022-07-12 16:46:40,930 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 [2022-07-12 16:46:40,930 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 [2022-07-12 16:46:40,931 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] [2022-07-12 16:46:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-07-12 16:46:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2022-07-12 16:46:41,101 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) [2022-07-12 16:46:41,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5838 transitions. [2022-07-12 16:46:41,118 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5838 transitions. Word has length 98 [2022-07-12 16:46:41,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:41,119 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5838 transitions. [2022-07-12 16:46:41,119 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) [2022-07-12 16:46:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5838 transitions. [2022-07-12 16:46:41,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 16:46:41,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:41,122 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] [2022-07-12 16:46:41,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:41,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:41,344 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)] === [2022-07-12 16:46:41,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1301359005, now seen corresponding path program 1 times [2022-07-12 16:46:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:41,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635968085] [2022-07-12 16:46:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:41,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:41,347 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) [2022-07-12 16:46:41,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 16:46:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:42,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:42,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-12 16:46:45,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-12 16:46:46,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:46,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635968085] [2022-07-12 16:46:46,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635968085] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:46,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:46,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:46,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122499209] [2022-07-12 16:46:46,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:46,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:46,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:46,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:46,339 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) [2022-07-12 16:46:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:47,094 INFO L93 Difference]: Finished difference Result 4075 states and 5843 transitions. [2022-07-12 16:46:47,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:47,095 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 [2022-07-12 16:46:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:47,114 INFO L225 Difference]: With dead ends: 4075 [2022-07-12 16:46:47,114 INFO L226 Difference]: Without dead ends: 4071 [2022-07-12 16:46:47,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:46:47,118 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 [2022-07-12 16:46:47,119 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] [2022-07-12 16:46:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2022-07-12 16:46:47,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 4071. [2022-07-12 16:46:47,295 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) [2022-07-12 16:46:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5839 transitions. [2022-07-12 16:46:47,314 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5839 transitions. Word has length 103 [2022-07-12 16:46:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:47,314 INFO L495 AbstractCegarLoop]: Abstraction has 4071 states and 5839 transitions. [2022-07-12 16:46:47,314 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) [2022-07-12 16:46:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5839 transitions. [2022-07-12 16:46:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 16:46:47,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:47,316 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] [2022-07-12 16:46:47,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:47,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:47,531 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)] === [2022-07-12 16:46:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1896224259, now seen corresponding path program 1 times [2022-07-12 16:46:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:47,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649035144] [2022-07-12 16:46:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:47,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:47,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:47,540 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) [2022-07-12 16:46:47,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 16:46:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:49,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:46:49,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-12 16:46:51,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-12 16:46:52,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:52,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649035144] [2022-07-12 16:46:52,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649035144] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:46:52,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:46:52,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:46:52,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973504730] [2022-07-12 16:46:52,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:46:52,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:46:52,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:46:52,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:46:52,480 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) [2022-07-12 16:46:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:46:53,087 INFO L93 Difference]: Finished difference Result 4071 states and 5839 transitions. [2022-07-12 16:46:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:46:53,088 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 [2022-07-12 16:46:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:46:53,104 INFO L225 Difference]: With dead ends: 4071 [2022-07-12 16:46:53,104 INFO L226 Difference]: Without dead ends: 3968 [2022-07-12 16:46:53,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:46:53,108 INFO L413 NwaCegarLoop]: 5440 mSDtfsCounter, 5409 mSDsluCounter, 10863 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-12 16:46:53,108 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] [2022-07-12 16:46:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-07-12 16:46:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3968. [2022-07-12 16:46:53,286 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) [2022-07-12 16:46:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5725 transitions. [2022-07-12 16:46:53,303 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5725 transitions. Word has length 108 [2022-07-12 16:46:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:46:53,303 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5725 transitions. [2022-07-12 16:46:53,304 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, (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) [2022-07-12 16:46:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5725 transitions. [2022-07-12 16:46:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-12 16:46:53,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:46:53,313 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] [2022-07-12 16:46:53,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 16:46:53,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:46:53,536 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)] === [2022-07-12 16:46:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:46:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1429581440, now seen corresponding path program 1 times [2022-07-12 16:46:53,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:46:53,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102254604] [2022-07-12 16:46:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:46:53,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:46:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:46:53,539 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) [2022-07-12 16:46:53,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 16:46:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:46:55,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 16:46:55,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:46:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-12 16:46:56,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:46:57,936 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-12 16:46:57,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:46:57,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102254604] [2022-07-12 16:46:57,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102254604] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:46:57,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 16:46:57,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-12 16:46:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757704048] [2022-07-12 16:46:57,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 16:46:57,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 16:46:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:46:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 16:46:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 16:46:57,938 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) [2022-07-12 16:47:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:00,888 INFO L93 Difference]: Finished difference Result 7925 states and 11434 transitions. [2022-07-12 16:47:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 16:47:00,889 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 [2022-07-12 16:47:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:00,909 INFO L225 Difference]: With dead ends: 7925 [2022-07-12 16:47:00,909 INFO L226 Difference]: Without dead ends: 3970 [2022-07-12 16:47:00,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 352 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:47:00,937 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 [2022-07-12 16:47:00,937 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] [2022-07-12 16:47:00,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-07-12 16:47:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3968. [2022-07-12 16:47:01,126 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) [2022-07-12 16:47:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5724 transitions. [2022-07-12 16:47:01,147 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5724 transitions. Word has length 181 [2022-07-12 16:47:01,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:01,148 INFO L495 AbstractCegarLoop]: Abstraction has 3968 states and 5724 transitions. [2022-07-12 16:47:01,148 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) [2022-07-12 16:47:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5724 transitions. [2022-07-12 16:47:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 16:47:01,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:01,158 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] [2022-07-12 16:47:01,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 16:47:01,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:01,371 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)] === [2022-07-12 16:47:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:01,372 INFO L85 PathProgramCache]: Analyzing trace with hash -470737409, now seen corresponding path program 1 times [2022-07-12 16:47:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:01,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516585924] [2022-07-12 16:47:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:01,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:01,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:01,375 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) [2022-07-12 16:47:01,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 16:47:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:03,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:47:03,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-07-12 16:47:05,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:05,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:05,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516585924] [2022-07-12 16:47:05,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516585924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:05,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:05,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:47:05,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088147168] [2022-07-12 16:47:05,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:05,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:47:05,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:47:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:47:05,419 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) [2022-07-12 16:47:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:05,559 INFO L93 Difference]: Finished difference Result 7918 states and 11423 transitions. [2022-07-12 16:47:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:47:05,560 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 [2022-07-12 16:47:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:05,577 INFO L225 Difference]: With dead ends: 7918 [2022-07-12 16:47:05,577 INFO L226 Difference]: Without dead ends: 3967 [2022-07-12 16:47:05,601 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 [2022-07-12 16:47:05,602 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 [2022-07-12 16:47:05,602 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] [2022-07-12 16:47:05,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3967 states. [2022-07-12 16:47:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3967 to 3967. [2022-07-12 16:47:05,882 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) [2022-07-12 16:47:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5721 transitions. [2022-07-12 16:47:05,904 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5721 transitions. Word has length 184 [2022-07-12 16:47:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:05,905 INFO L495 AbstractCegarLoop]: Abstraction has 3967 states and 5721 transitions. [2022-07-12 16:47:05,905 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) [2022-07-12 16:47:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5721 transitions. [2022-07-12 16:47:05,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-12 16:47:05,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:05,915 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] [2022-07-12 16:47:05,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 16:47:06,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:06,140 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)] === [2022-07-12 16:47:06,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -929426377, now seen corresponding path program 1 times [2022-07-12 16:47:06,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:06,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884311307] [2022-07-12 16:47:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:06,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:06,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:06,144 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) [2022-07-12 16:47:06,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 16:47:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:07,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-12 16:47:07,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-12 16:47:09,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:09,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:09,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884311307] [2022-07-12 16:47:09,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884311307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:09,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:09,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 16:47:09,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719559304] [2022-07-12 16:47:09,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:09,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 16:47:09,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:09,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 16:47:09,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-12 16:47:09,706 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) [2022-07-12 16:47:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:17,280 INFO L93 Difference]: Finished difference Result 8572 states and 12404 transitions. [2022-07-12 16:47:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 16:47:17,280 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 [2022-07-12 16:47:17,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:17,298 INFO L225 Difference]: With dead ends: 8572 [2022-07-12 16:47:17,298 INFO L226 Difference]: Without dead ends: 4621 [2022-07-12 16:47:17,316 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 [2022-07-12 16:47:17,317 INFO L413 NwaCegarLoop]: 6304 mSDtfsCounter, 2125 mSDsluCounter, 60431 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:47:17,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 66735 Invalid, 929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [424 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 16:47:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2022-07-12 16:47:17,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 3975. [2022-07-12 16:47:17,520 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) [2022-07-12 16:47:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5731 transitions. [2022-07-12 16:47:17,539 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5731 transitions. Word has length 186 [2022-07-12 16:47:17,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:17,540 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5731 transitions. [2022-07-12 16:47:17,540 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) [2022-07-12 16:47:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5731 transitions. [2022-07-12 16:47:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 16:47:17,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:17,549 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] [2022-07-12 16:47:17,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 16:47:17,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:17,764 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)] === [2022-07-12 16:47:17,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash 468489244, now seen corresponding path program 1 times [2022-07-12 16:47:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:17,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101934957] [2022-07-12 16:47:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:17,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:17,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:17,768 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) [2022-07-12 16:47:17,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 16:47:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:19,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 16:47:19,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-12 16:47:21,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:21,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:21,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101934957] [2022-07-12 16:47:21,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101934957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:21,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:21,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 16:47:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877625958] [2022-07-12 16:47:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:21,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 16:47:21,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 16:47:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-12 16:47:21,712 INFO L87 Difference]: Start difference. First operand 3975 states and 5731 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-12 16:47:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:30,674 INFO L93 Difference]: Finished difference Result 9235 states and 13396 transitions. [2022-07-12 16:47:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 16:47:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 188 [2022-07-12 16:47:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:30,697 INFO L225 Difference]: With dead ends: 9235 [2022-07-12 16:47:30,698 INFO L226 Difference]: Without dead ends: 5276 [2022-07-12 16:47:30,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-07-12 16:47:30,720 INFO L413 NwaCegarLoop]: 6430 mSDtfsCounter, 2129 mSDsluCounter, 61567 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 67997 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:47:30,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 67997 Invalid, 971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [431 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-12 16:47:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2022-07-12 16:47:30,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 3975. [2022-07-12 16:47:30,974 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) [2022-07-12 16:47:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5731 transitions. [2022-07-12 16:47:30,994 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5731 transitions. Word has length 188 [2022-07-12 16:47:30,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:30,994 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5731 transitions. [2022-07-12 16:47:30,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-12 16:47:30,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5731 transitions. [2022-07-12 16:47:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-12 16:47:31,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:31,006 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:47:31,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 16:47:31,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:31,232 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:47:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1730861329, now seen corresponding path program 1 times [2022-07-12 16:47:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:31,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179134008] [2022-07-12 16:47:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:31,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:31,235 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:47:31,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 16:47:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:33,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 16:47:33,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-12 16:47:35,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:35,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:35,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179134008] [2022-07-12 16:47:35,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179134008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:35,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:35,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 16:47:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836650864] [2022-07-12 16:47:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:35,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 16:47:35,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 16:47:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-12 16:47:35,311 INFO L87 Difference]: Start difference. First operand 3975 states and 5731 transitions. Second operand has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-12 16:47:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:44,698 INFO L93 Difference]: Finished difference Result 8594 states and 12432 transitions. [2022-07-12 16:47:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 16:47:44,699 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 214 [2022-07-12 16:47:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:44,712 INFO L225 Difference]: With dead ends: 8594 [2022-07-12 16:47:44,713 INFO L226 Difference]: Without dead ends: 4635 [2022-07-12 16:47:44,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2022-07-12 16:47:44,727 INFO L413 NwaCegarLoop]: 6312 mSDtfsCounter, 2133 mSDsluCounter, 66754 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 73066 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:47:44,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 73066 Invalid, 1026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-12 16:47:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2022-07-12 16:47:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 3977. [2022-07-12 16:47:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 2811 states have (on average 1.3393810032017075) internal successors, (3765), 2872 states have internal predecessors, (3765), 984 states have call successors, (984), 183 states have call predecessors, (984), 180 states have return successors, (985), 964 states have call predecessors, (985), 984 states have call successors, (985) [2022-07-12 16:47:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5734 transitions. [2022-07-12 16:47:44,980 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5734 transitions. Word has length 214 [2022-07-12 16:47:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:44,981 INFO L495 AbstractCegarLoop]: Abstraction has 3977 states and 5734 transitions. [2022-07-12 16:47:44,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 6 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-12 16:47:44,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5734 transitions. [2022-07-12 16:47:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-12 16:47:44,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:44,991 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:47:45,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 16:47:45,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:45,216 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:47:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash 527853265, now seen corresponding path program 1 times [2022-07-12 16:47:45,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:45,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202002280] [2022-07-12 16:47:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:45,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:45,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:45,220 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:47:45,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 16:47:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:47,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 2080 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 16:47:47,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-07-12 16:47:47,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:47,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:47,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202002280] [2022-07-12 16:47:47,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202002280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:47,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:47,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:47:47,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954093596] [2022-07-12 16:47:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:47,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:47:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:47,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:47:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:47:47,735 INFO L87 Difference]: Start difference. First operand 3977 states and 5734 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 16:47:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:47:48,562 INFO L93 Difference]: Finished difference Result 7976 states and 11497 transitions. [2022-07-12 16:47:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:47:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 237 [2022-07-12 16:47:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:47:48,579 INFO L225 Difference]: With dead ends: 7976 [2022-07-12 16:47:48,579 INFO L226 Difference]: Without dead ends: 4016 [2022-07-12 16:47:48,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:47:48,596 INFO L413 NwaCegarLoop]: 5400 mSDtfsCounter, 67 mSDsluCounter, 16133 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 21533 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:47:48,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 21533 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:47:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-07-12 16:47:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3980. [2022-07-12 16:47:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 2814 states have (on average 1.3390191897654584) internal successors, (3768), 2875 states have internal predecessors, (3768), 984 states have call successors, (984), 183 states have call predecessors, (984), 180 states have return successors, (985), 964 states have call predecessors, (985), 984 states have call successors, (985) [2022-07-12 16:47:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5737 transitions. [2022-07-12 16:47:48,815 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5737 transitions. Word has length 237 [2022-07-12 16:47:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:47:48,815 INFO L495 AbstractCegarLoop]: Abstraction has 3980 states and 5737 transitions. [2022-07-12 16:47:48,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 16:47:48,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5737 transitions. [2022-07-12 16:47:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-12 16:47:48,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:47:48,826 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:47:48,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-12 16:47:49,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:47:49,052 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:47:49,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:47:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash -47659283, now seen corresponding path program 1 times [2022-07-12 16:47:49,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:47:49,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92703527] [2022-07-12 16:47:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:47:49,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:47:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:47:49,056 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:47:49,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-12 16:47:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:47:51,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 16:47:51,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:47:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-07-12 16:47:53,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:47:53,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:47:53,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92703527] [2022-07-12 16:47:53,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92703527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:47:53,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:47:53,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 16:47:53,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560368859] [2022-07-12 16:47:53,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:47:53,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 16:47:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:47:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 16:47:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-12 16:47:53,891 INFO L87 Difference]: Start difference. First operand 3980 states and 5737 transitions. Second operand has 13 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29)