./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:20:19,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:20:19,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:20:19,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:20:19,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:20:19,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:20:19,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:20:19,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:20:19,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:20:19,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:20:19,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:20:19,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:20:19,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:20:19,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:20:19,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:20:19,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:20:19,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:20:19,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:20:19,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:20:19,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:20:19,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:20:19,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:20:19,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:20:19,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:20:19,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:20:19,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:20:19,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:20:19,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:20:19,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:20:19,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:20:19,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:20:19,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:20:19,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:20:19,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:20:19,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:20:19,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:20:19,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:20:19,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:20:19,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:20:19,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:20:19,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:20:19,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:20:19,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:20:19,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:20:19,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:20:19,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:20:19,694 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:20:19,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:20:19,695 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:20:19,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:20:19,701 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:20:19,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:20:19,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:20:19,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:20:19,704 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:20:19,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:20:19,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:20:19,704 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:20:19,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:20:19,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:20:19,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:20:19,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:20:19,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:20:19,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:20:19,707 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:20:19,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:20:19,707 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:20:19,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:20:19,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:20:19,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:20:19,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:20:19,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:20:19,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:20:19,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:20:19,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:20:19,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:20:19,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:20:19,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:20:19,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:20:19,712 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2021-11-19 13:20:20,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:20:20,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:20:20,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:20:20,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:20:20,069 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:20:20,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-19 13:20:20,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/1b787cb79/e86a7db306c24482b478cd528b02d340/FLAG1d292a2c3 [2021-11-19 13:20:21,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:20:21,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-19 13:20:21,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/1b787cb79/e86a7db306c24482b478cd528b02d340/FLAG1d292a2c3 [2021-11-19 13:20:21,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/1b787cb79/e86a7db306c24482b478cd528b02d340 [2021-11-19 13:20:21,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:20:21,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:20:21,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:21,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:20:21,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:20:21,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:21" (1/1) ... [2021-11-19 13:20:21,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2cf35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:21, skipping insertion in model container [2021-11-19 13:20:21,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:21" (1/1) ... [2021-11-19 13:20:21,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:20:21,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:20:24,925 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,108 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,143 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,149 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,264 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,298 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,447 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:25,462 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:26,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-19 13:20:26,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-19 13:20:26,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-19 13:20:26,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-19 13:20:26,779 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:20:26,815 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:20:26,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d2196d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:26, skipping insertion in model container [2021-11-19 13:20:26,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:26,816 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:20:26,818 INFO L158 Benchmark]: Toolchain (without parser) took 5304.36ms. Allocated memory was 107.0MB in the beginning and 169.9MB in the end (delta: 62.9MB). Free memory was 72.3MB in the beginning and 109.9MB in the end (delta: -37.5MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-19 13:20:26,819 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:20:26,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5301.62ms. Allocated memory was 107.0MB in the beginning and 169.9MB in the end (delta: 62.9MB). Free memory was 72.3MB in the beginning and 109.9MB in the end (delta: -37.5MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-19 13:20:26,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5301.62ms. Allocated memory was 107.0MB in the beginning and 169.9MB in the end (delta: 62.9MB). Free memory was 72.3MB in the beginning and 109.9MB in the end (delta: -37.5MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6756]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:20:29,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:20:29,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:20:29,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:20:29,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:20:29,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:20:29,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:20:29,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:20:29,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:20:29,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:20:29,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:20:29,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:20:29,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:20:29,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:20:29,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:20:29,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:20:29,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:20:29,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:20:29,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:20:29,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:20:29,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:20:29,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:20:29,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:20:29,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:20:29,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:20:29,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:20:29,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:20:29,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:20:29,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:20:29,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:20:29,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:20:29,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:20:29,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:20:29,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:20:29,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:20:29,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:20:29,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:20:29,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:20:29,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:20:29,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:20:29,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:20:29,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:20:29,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:20:29,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:20:29,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:20:29,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:20:29,540 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:20:29,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:20:29,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:20:29,541 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:20:29,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:20:29,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:20:29,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:20:29,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:20:29,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:20:29,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:20:29,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:20:29,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:20:29,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:20:29,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:20:29,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:20:29,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:20:29,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:20:29,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:20:29,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:20:29,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:20:29,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:20:29,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:20:29,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:20:29,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:20:29,548 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:20:29,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:20:29,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:20:29,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:20:29,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:20:29,549 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2021-11-19 13:20:30,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:20:30,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:20:30,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:20:30,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:20:30,053 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:20:30,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-19 13:20:30,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/59ade059e/ac2e2503213949d5944e1c40224fccc1/FLAG8db4d90d3 [2021-11-19 13:20:31,360 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:20:31,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-19 13:20:31,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/59ade059e/ac2e2503213949d5944e1c40224fccc1/FLAG8db4d90d3 [2021-11-19 13:20:31,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/data/59ade059e/ac2e2503213949d5944e1c40224fccc1 [2021-11-19 13:20:31,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:20:31,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:20:31,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:31,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:20:31,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:20:31,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:31" (1/1) ... [2021-11-19 13:20:31,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ac53d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:31, skipping insertion in model container [2021-11-19 13:20:31,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:20:31" (1/1) ... [2021-11-19 13:20:31,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:20:31,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:20:34,957 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:34,981 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:20:36,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-19 13:20:36,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-19 13:20:36,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-19 13:20:36,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-19 13:20:36,400 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:20:36,479 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:20:36,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:20:37,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-19 13:20:37,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-19 13:20:37,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-19 13:20:37,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-19 13:20:37,105 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:20:37,126 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:20:37,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-19 13:20:37,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-19 13:20:37,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-19 13:20:37,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-19 13:20:37,907 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:20:38,318 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:20:38,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38 WrapperNode [2021-11-19 13:20:38,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:20:38,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:20:38,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:20:38,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:20:38,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,727 INFO L137 Inliner]: procedures = 587, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6309 [2021-11-19 13:20:38,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:20:38,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:20:38,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:20:38,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:20:38,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:38,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:39,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:39,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:39,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:20:39,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:20:39,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:20:39,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:20:39,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (1/1) ... [2021-11-19 13:20:39,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:20:39,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:20:39,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:20:39,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:20:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2021-11-19 13:20:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2021-11-19 13:20:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2021-11-19 13:20:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2021-11-19 13:20:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:20:39,315 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:20:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:20:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:20:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 13:20:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 13:20:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 13:20:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 13:20:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2021-11-19 13:20:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2021-11-19 13:20:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:20:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:20:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:20:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:20:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-19 13:20:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-19 13:20:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:20:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:20:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2021-11-19 13:20:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2021-11-19 13:20:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2021-11-19 13:20:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2021-11-19 13:20:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:20:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:20:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:20:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:20:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 13:20:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 13:20:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2021-11-19 13:20:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2021-11-19 13:20:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2021-11-19 13:20:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2021-11-19 13:20:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 13:20:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 13:20:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 13:20:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 13:20:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-19 13:20:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-19 13:20:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:20:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:20:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2021-11-19 13:20:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2021-11-19 13:20:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:20:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:20:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2021-11-19 13:20:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2021-11-19 13:20:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:20:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:20:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:20:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:20:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2021-11-19 13:20:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2021-11-19 13:20:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:20:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:20:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:20:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:20:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 13:20:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 13:20:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:20:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 13:20:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 13:20:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:20:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:20:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:20:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2021-11-19 13:20:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2021-11-19 13:20:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:20:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-19 13:20:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-19 13:20:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:20:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:20:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-19 13:20:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-19 13:20:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:20:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:20:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 13:20:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 13:20:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:20:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:20:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2021-11-19 13:20:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2021-11-19 13:20:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:20:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:20:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:20:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:20:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:20:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:20:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:20:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:20:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:20:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:20:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:20:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:20:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-19 13:20:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-19 13:20:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 13:20:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 13:20:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2021-11-19 13:20:39,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2021-11-19 13:20:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2021-11-19 13:20:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2021-11-19 13:20:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:20:39,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:20:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2021-11-19 13:20:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2021-11-19 13:20:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2021-11-19 13:20:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2021-11-19 13:20:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:20:39,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 13:20:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2021-11-19 13:20:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2021-11-19 13:20:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:20:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2021-11-19 13:20:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2021-11-19 13:20:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:20:39,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:20:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:20:39,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:20:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:20:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:20:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-19 13:20:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-19 13:20:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2021-11-19 13:20:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2021-11-19 13:20:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:20:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2021-11-19 13:20:39,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2021-11-19 13:20:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:20:39,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:20:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:20:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:20:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:20:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2021-11-19 13:20:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2021-11-19 13:20:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:20:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:20:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:20:39,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:20:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:20:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-19 13:20:39,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-19 13:20:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:20:39,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:20:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2021-11-19 13:20:39,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2021-11-19 13:20:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:20:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:20:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:20:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:20:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 13:20:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 13:20:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 13:20:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 13:20:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:20:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:20:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2021-11-19 13:20:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2021-11-19 13:20:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:20:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:20:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-19 13:20:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-19 13:20:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2021-11-19 13:20:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2021-11-19 13:20:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-19 13:20:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-19 13:20:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:20:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:20:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:20:39,371 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:20:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:20:39,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:20:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:20:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2021-11-19 13:20:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2021-11-19 13:20:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:20:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 13:20:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 13:20:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:20:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:20:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2021-11-19 13:20:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2021-11-19 13:20:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:20:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:20:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:20:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:20:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:20:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:20:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:20:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:20:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:20:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-19 13:20:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-19 13:20:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 13:20:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 13:20:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 13:20:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 13:20:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:20:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:20:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2021-11-19 13:20:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2021-11-19 13:20:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 13:20:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 13:20:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2021-11-19 13:20:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2021-11-19 13:20:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:20:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:20:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2021-11-19 13:20:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2021-11-19 13:20:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:20:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:20:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 13:20:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 13:20:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 13:20:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 13:20:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2021-11-19 13:20:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2021-11-19 13:20:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 13:20:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 13:20:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 13:20:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 13:20:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:20:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:20:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:20:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:20:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:20:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:20:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:20:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:20:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:20:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 13:20:39,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 13:20:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:20:39,389 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:20:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:20:39,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:20:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 13:20:39,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 13:20:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2021-11-19 13:20:39,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2021-11-19 13:20:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:20:39,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:20:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 13:20:39,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 13:20:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2021-11-19 13:20:39,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2021-11-19 13:20:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2021-11-19 13:20:39,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2021-11-19 13:20:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:20:39,393 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:20:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2021-11-19 13:20:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2021-11-19 13:20:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2021-11-19 13:20:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2021-11-19 13:20:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 13:20:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 13:20:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:20:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:20:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:20:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:20:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2021-11-19 13:20:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2021-11-19 13:20:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-19 13:20:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-19 13:20:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:20:39,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:20:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2021-11-19 13:20:39,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2021-11-19 13:20:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:20:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:20:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:20:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:20:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:20:39,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:20:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2021-11-19 13:20:39,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2021-11-19 13:20:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-19 13:20:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-19 13:20:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 13:20:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 13:20:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2021-11-19 13:20:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2021-11-19 13:20:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-19 13:20:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-19 13:20:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2021-11-19 13:20:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2021-11-19 13:20:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2021-11-19 13:20:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2021-11-19 13:20:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:20:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:20:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-19 13:20:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-19 13:20:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 13:20:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 13:20:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:20:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:20:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 13:20:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-19 13:20:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-19 13:20:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:20:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:20:40,521 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:20:40,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:20:41,045 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:21:30,683 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:21:30,783 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:21:30,811 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:21:30,812 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:21:30,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:21:30 BoogieIcfgContainer [2021-11-19 13:21:30,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:21:30,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:21:30,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:21:30,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:21:30,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:20:31" (1/3) ... [2021-11-19 13:21:30,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7868699a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:21:30, skipping insertion in model container [2021-11-19 13:21:30,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:20:38" (2/3) ... [2021-11-19 13:21:30,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7868699a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:21:30, skipping insertion in model container [2021-11-19 13:21:30,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:21:30" (3/3) ... [2021-11-19 13:21:30,829 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-19 13:21:30,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:21:30,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 13:21:30,910 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:21:30,918 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:21:30,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 13:21:31,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2021-11-19 13:21:31,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-19 13:21:31,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:21:31,023 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:21:31,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:21:31,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:21:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash 404930848, now seen corresponding path program 1 times [2021-11-19 13:21:31,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:21:31,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058756198] [2021-11-19 13:21:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:21:31,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:21:31,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:21:31,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:21:31,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:21:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:21:32,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:21:32,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:21:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 13:21:33,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:21:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:21:33,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:21:33,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058756198] [2021-11-19 13:21:33,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058756198] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:21:33,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:21:33,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:21:33,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040880532] [2021-11-19 13:21:33,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:21:33,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:21:33,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:21:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:21:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:21:33,503 INFO L87 Difference]: Start difference. First operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 13:21:35,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:21:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:21:45,207 INFO L93 Difference]: Finished difference Result 9816 states and 14050 transitions. [2021-11-19 13:21:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:21:45,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 112 [2021-11-19 13:21:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:21:45,320 INFO L225 Difference]: With dead ends: 9816 [2021-11-19 13:21:45,320 INFO L226 Difference]: Without dead ends: 7320 [2021-11-19 13:21:45,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:21:45,363 INFO L933 BasicCegarLoop]: 4882 mSDtfsCounter, 6798 mSDsluCounter, 6209 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6798 SdHoareTripleChecker+Valid, 11091 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:21:45,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6798 Valid, 11091 Invalid, 1411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1403 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2021-11-19 13:21:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-11-19 13:21:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7293. [2021-11-19 13:21:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 4831 states have (on average 1.2541916787414613) internal successors, (6059), 4979 states have internal predecessors, (6059), 2059 states have call successors, (2059), 401 states have call predecessors, (2059), 400 states have return successors, (2056), 2011 states have call predecessors, (2056), 2056 states have call successors, (2056) [2021-11-19 13:21:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 10174 transitions. [2021-11-19 13:21:46,344 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 10174 transitions. Word has length 112 [2021-11-19 13:21:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:21:46,348 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 10174 transitions. [2021-11-19 13:21:46,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 13:21:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 10174 transitions. [2021-11-19 13:21:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-19 13:21:46,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:21:46,364 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:21:46,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:21:46,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:21:46,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:21:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:21:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash -376960966, now seen corresponding path program 1 times [2021-11-19 13:21:46,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:21:46,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409580825] [2021-11-19 13:21:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:21:46,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:21:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:21:46,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:21:46,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:21:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:21:48,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:21:48,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:21:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 13:21:48,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:21:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:21:49,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:21:49,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409580825] [2021-11-19 13:21:49,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409580825] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:21:49,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:21:49,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:21:49,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907832030] [2021-11-19 13:21:49,177 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:21:49,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:21:49,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:21:49,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:21:49,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:21:49,181 INFO L87 Difference]: Start difference. First operand 7293 states and 10174 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 13:21:51,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:22:01,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:01,086 INFO L93 Difference]: Finished difference Result 18138 states and 25050 transitions. [2021-11-19 13:22:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:22:01,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2021-11-19 13:22:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:01,206 INFO L225 Difference]: With dead ends: 18138 [2021-11-19 13:22:01,207 INFO L226 Difference]: Without dead ends: 10866 [2021-11-19 13:22:01,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:01,260 INFO L933 BasicCegarLoop]: 4612 mSDtfsCounter, 4841 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 470 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4841 SdHoareTripleChecker+Valid, 9181 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:01,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4841 Valid, 9181 Invalid, 1794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [470 Valid, 1323 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2021-11-19 13:22:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10866 states. [2021-11-19 13:22:01,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10866 to 10814. [2021-11-19 13:22:01,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10814 states, 7212 states have (on average 1.242651136993899) internal successors, (8962), 7396 states have internal predecessors, (8962), 2913 states have call successors, (2913), 687 states have call predecessors, (2913), 686 states have return successors, (2910), 2868 states have call predecessors, (2910), 2910 states have call successors, (2910) [2021-11-19 13:22:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10814 states to 10814 states and 14785 transitions. [2021-11-19 13:22:01,965 INFO L78 Accepts]: Start accepts. Automaton has 10814 states and 14785 transitions. Word has length 117 [2021-11-19 13:22:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:01,966 INFO L470 AbstractCegarLoop]: Abstraction has 10814 states and 14785 transitions. [2021-11-19 13:22:01,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 13:22:01,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10814 states and 14785 transitions. [2021-11-19 13:22:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 13:22:01,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:01,978 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:02,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:02,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:02,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:22:02,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash 656615772, now seen corresponding path program 1 times [2021-11-19 13:22:02,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:02,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411411410] [2021-11-19 13:22:02,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:02,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:02,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:02,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:02,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:22:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:03,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:22:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 13:22:04,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:22:04,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:04,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411411410] [2021-11-19 13:22:04,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411411410] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:04,446 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:04,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:22:04,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797731789] [2021-11-19 13:22:04,446 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:04,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:22:04,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:04,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:22:04,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:04,449 INFO L87 Difference]: Start difference. First operand 10814 states and 14785 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:22:06,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:22:14,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:14,433 INFO L93 Difference]: Finished difference Result 37757 states and 51641 transitions. [2021-11-19 13:22:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:22:14,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 120 [2021-11-19 13:22:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:14,688 INFO L225 Difference]: With dead ends: 37757 [2021-11-19 13:22:14,689 INFO L226 Difference]: Without dead ends: 26964 [2021-11-19 13:22:14,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:22:14,774 INFO L933 BasicCegarLoop]: 5174 mSDtfsCounter, 6468 mSDsluCounter, 8200 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6468 SdHoareTripleChecker+Valid, 13374 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:14,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6468 Valid, 13374 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1280 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-19 13:22:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26964 states. [2021-11-19 13:22:16,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26964 to 26888. [2021-11-19 13:22:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26888 states, 17984 states have (on average 1.2462188612099645) internal successors, (22412), 18452 states have internal predecessors, (22412), 7140 states have call successors, (7140), 1794 states have call predecessors, (7140), 1761 states have return successors, (7205), 6961 states have call predecessors, (7205), 7137 states have call successors, (7205) [2021-11-19 13:22:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26888 states to 26888 states and 36757 transitions. [2021-11-19 13:22:17,090 INFO L78 Accepts]: Start accepts. Automaton has 26888 states and 36757 transitions. Word has length 120 [2021-11-19 13:22:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:17,091 INFO L470 AbstractCegarLoop]: Abstraction has 26888 states and 36757 transitions. [2021-11-19 13:22:17,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 13:22:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 26888 states and 36757 transitions. [2021-11-19 13:22:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 13:22:17,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:17,098 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:17,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:17,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:17,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:22:17,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:17,310 INFO L85 PathProgramCache]: Analyzing trace with hash 865892924, now seen corresponding path program 1 times [2021-11-19 13:22:17,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:17,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315162121] [2021-11-19 13:22:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:17,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:17,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:17,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:17,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:22:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:19,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:22:19,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 13:22:19,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:22:20,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:20,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315162121] [2021-11-19 13:22:20,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315162121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:20,116 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:20,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:22:20,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63489859] [2021-11-19 13:22:20,116 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:20,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:22:20,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:22:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:22:20,119 INFO L87 Difference]: Start difference. First operand 26888 states and 36757 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 13:22:22,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:22:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:24,598 INFO L93 Difference]: Finished difference Result 71071 states and 97368 transitions. [2021-11-19 13:22:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:22:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2021-11-19 13:22:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:24,882 INFO L225 Difference]: With dead ends: 71071 [2021-11-19 13:22:24,883 INFO L226 Difference]: Without dead ends: 44204 [2021-11-19 13:22:24,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:22:25,002 INFO L933 BasicCegarLoop]: 4095 mSDtfsCounter, 2988 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:25,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2988 Valid, 7483 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 13:22:25,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44204 states. [2021-11-19 13:22:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44204 to 44162. [2021-11-19 13:22:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44162 states, 29288 states have (on average 1.2443662933624693) internal successors, (36445), 30196 states have internal predecessors, (36445), 11955 states have call successors, (11955), 2985 states have call predecessors, (11955), 2916 states have return successors, (12094), 11586 states have call predecessors, (12094), 11952 states have call successors, (12094) [2021-11-19 13:22:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44162 states to 44162 states and 60494 transitions. [2021-11-19 13:22:28,354 INFO L78 Accepts]: Start accepts. Automaton has 44162 states and 60494 transitions. Word has length 135 [2021-11-19 13:22:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:28,357 INFO L470 AbstractCegarLoop]: Abstraction has 44162 states and 60494 transitions. [2021-11-19 13:22:28,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 13:22:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 44162 states and 60494 transitions. [2021-11-19 13:22:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 13:22:28,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:28,361 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:28,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:28,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:28,576 INFO L402 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)] === [2021-11-19 13:22:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash -473532878, now seen corresponding path program 1 times [2021-11-19 13:22:28,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:28,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469297632] [2021-11-19 13:22:28,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:28,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:28,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:28,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:28,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:22:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:30,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:22:30,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-19 13:22:31,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-19 13:22:32,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:32,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469297632] [2021-11-19 13:22:32,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469297632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:22:32,327 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:22:32,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:22:32,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845941982] [2021-11-19 13:22:32,327 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:32,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:22:32,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:32,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:22:32,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:22:32,329 INFO L87 Difference]: Start difference. First operand 44162 states and 60494 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:22:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:34,696 INFO L93 Difference]: Finished difference Result 44168 states and 60499 transitions. [2021-11-19 13:22:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:22:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 164 [2021-11-19 13:22:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:34,991 INFO L225 Difference]: With dead ends: 44168 [2021-11-19 13:22:34,992 INFO L226 Difference]: Without dead ends: 44166 [2021-11-19 13:22:35,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:22:35,020 INFO L933 BasicCegarLoop]: 3466 mSDtfsCounter, 3387 mSDsluCounter, 10373 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 13839 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:35,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 13839 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44166 states. [2021-11-19 13:22:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44166 to 44166. [2021-11-19 13:22:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44166 states, 29291 states have (on average 1.2443412652350552) internal successors, (36448), 30199 states have internal predecessors, (36448), 11955 states have call successors, (11955), 2986 states have call predecessors, (11955), 2917 states have return successors, (12094), 11586 states have call predecessors, (12094), 11952 states have call successors, (12094) [2021-11-19 13:22:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44166 states to 44166 states and 60497 transitions. [2021-11-19 13:22:38,338 INFO L78 Accepts]: Start accepts. Automaton has 44166 states and 60497 transitions. Word has length 164 [2021-11-19 13:22:38,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:38,339 INFO L470 AbstractCegarLoop]: Abstraction has 44166 states and 60497 transitions. [2021-11-19 13:22:38,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:22:38,340 INFO L276 IsEmpty]: Start isEmpty. Operand 44166 states and 60497 transitions. [2021-11-19 13:22:38,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-19 13:22:38,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:38,353 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:38,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:38,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:38,577 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:22:38,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1390037152, now seen corresponding path program 1 times [2021-11-19 13:22:38,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:38,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976023167] [2021-11-19 13:22:38,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:38,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:38,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:38,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:38,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:22:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:39,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:22:39,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-19 13:22:41,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-19 13:22:42,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:42,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976023167] [2021-11-19 13:22:42,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976023167] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:22:42,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:22:42,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:22:42,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95162470] [2021-11-19 13:22:42,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:42,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:22:42,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:22:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:22:42,151 INFO L87 Difference]: Start difference. First operand 44166 states and 60497 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-19 13:22:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:43,752 INFO L93 Difference]: Finished difference Result 45246 states and 61626 transitions. [2021-11-19 13:22:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:22:43,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 169 [2021-11-19 13:22:43,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:44,167 INFO L225 Difference]: With dead ends: 45246 [2021-11-19 13:22:44,168 INFO L226 Difference]: Without dead ends: 45244 [2021-11-19 13:22:44,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:22:44,195 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 3376 mSDsluCounter, 7134 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 10638 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:44,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3387 Valid, 10638 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45244 states. [2021-11-19 13:22:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45244 to 45240. [2021-11-19 13:22:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45240 states, 29924 states have (on average 1.240776634139821) internal successors, (37129), 30856 states have internal predecessors, (37129), 12177 states have call successors, (12177), 3205 states have call predecessors, (12177), 3136 states have return successors, (12316), 11808 states have call predecessors, (12316), 12174 states have call successors, (12316) [2021-11-19 13:22:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45240 states to 45240 states and 61622 transitions. [2021-11-19 13:22:47,008 INFO L78 Accepts]: Start accepts. Automaton has 45240 states and 61622 transitions. Word has length 169 [2021-11-19 13:22:47,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:47,009 INFO L470 AbstractCegarLoop]: Abstraction has 45240 states and 61622 transitions. [2021-11-19 13:22:47,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-19 13:22:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 45240 states and 61622 transitions. [2021-11-19 13:22:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 13:22:47,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:47,014 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:47,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:47,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:47,241 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:22:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1831592626, now seen corresponding path program 1 times [2021-11-19 13:22:47,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:47,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801558629] [2021-11-19 13:22:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:47,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:47,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:47,244 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:47,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:22:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:48,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:22:48,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 13:22:49,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:22:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-11-19 13:22:50,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:22:50,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801558629] [2021-11-19 13:22:50,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801558629] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:22:50,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:22:50,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:22:50,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708506589] [2021-11-19 13:22:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:22:50,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:22:50,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:22:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:22:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:22:50,717 INFO L87 Difference]: Start difference. First operand 45240 states and 61622 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:22:52,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:22:52,945 INFO L93 Difference]: Finished difference Result 45246 states and 61627 transitions. [2021-11-19 13:22:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:22:52,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2021-11-19 13:22:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:22:53,173 INFO L225 Difference]: With dead ends: 45246 [2021-11-19 13:22:53,173 INFO L226 Difference]: Without dead ends: 45244 [2021-11-19 13:22:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:22:53,197 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:22:53,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3421 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:22:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45244 states. [2021-11-19 13:22:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45244 to 45244. [2021-11-19 13:22:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45244 states, 29927 states have (on average 1.2407524977445117) internal successors, (37132), 30859 states have internal predecessors, (37132), 12177 states have call successors, (12177), 3206 states have call predecessors, (12177), 3137 states have return successors, (12316), 11808 states have call predecessors, (12316), 12174 states have call successors, (12316) [2021-11-19 13:22:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45244 states to 45244 states and 61625 transitions. [2021-11-19 13:22:56,173 INFO L78 Accepts]: Start accepts. Automaton has 45244 states and 61625 transitions. Word has length 174 [2021-11-19 13:22:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:22:56,174 INFO L470 AbstractCegarLoop]: Abstraction has 45244 states and 61625 transitions. [2021-11-19 13:22:56,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 13:22:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 45244 states and 61625 transitions. [2021-11-19 13:22:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-19 13:22:56,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:22:56,180 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:22:56,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:22:56,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:22:56,393 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:22:56,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:22:56,394 INFO L85 PathProgramCache]: Analyzing trace with hash 111074208, now seen corresponding path program 1 times [2021-11-19 13:22:56,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:22:56,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073114004] [2021-11-19 13:22:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:22:56,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:22:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:22:56,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:22:56,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:22:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:22:57,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:22:57,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:22:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-11-19 13:22:59,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-11-19 13:23:00,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:00,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073114004] [2021-11-19 13:23:00,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073114004] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:00,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:00,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:23:00,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182857522] [2021-11-19 13:23:00,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:00,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:00,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:23:00,146 INFO L87 Difference]: Start difference. First operand 45244 states and 61625 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:02,469 INFO L93 Difference]: Finished difference Result 45250 states and 61630 transitions. [2021-11-19 13:23:02,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:02,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 179 [2021-11-19 13:23:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:02,666 INFO L225 Difference]: With dead ends: 45250 [2021-11-19 13:23:02,666 INFO L226 Difference]: Without dead ends: 45248 [2021-11-19 13:23:02,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:02,690 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:02,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3420 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45248 states. [2021-11-19 13:23:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45248 to 45248. [2021-11-19 13:23:05,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45248 states, 29930 states have (on average 1.2407283661877715) internal successors, (37135), 30862 states have internal predecessors, (37135), 12177 states have call successors, (12177), 3207 states have call predecessors, (12177), 3138 states have return successors, (12316), 11808 states have call predecessors, (12316), 12174 states have call successors, (12316) [2021-11-19 13:23:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45248 states to 45248 states and 61628 transitions. [2021-11-19 13:23:05,433 INFO L78 Accepts]: Start accepts. Automaton has 45248 states and 61628 transitions. Word has length 179 [2021-11-19 13:23:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:05,435 INFO L470 AbstractCegarLoop]: Abstraction has 45248 states and 61628 transitions. [2021-11-19 13:23:05,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 45248 states and 61628 transitions. [2021-11-19 13:23:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-19 13:23:05,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:05,441 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:05,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:05,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:05,657 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 13:23:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1283809074, now seen corresponding path program 1 times [2021-11-19 13:23:05,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:05,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807576566] [2021-11-19 13:23:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:05,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:05,660 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:05,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:23:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:06,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:06,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-19 13:23:08,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-19 13:23:08,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:08,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807576566] [2021-11-19 13:23:08,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807576566] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:08,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:08,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:23:08,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421113210] [2021-11-19 13:23:08,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:08,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:08,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:08,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:08,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:23:08,844 INFO L87 Difference]: Start difference. First operand 45248 states and 61628 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:23:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:11,354 INFO L93 Difference]: Finished difference Result 46356 states and 62590 transitions. [2021-11-19 13:23:11,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:11,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2021-11-19 13:23:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:11,530 INFO L225 Difference]: With dead ends: 46356 [2021-11-19 13:23:11,530 INFO L226 Difference]: Without dead ends: 46354 [2021-11-19 13:23:11,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:11,554 INFO L933 BasicCegarLoop]: 3498 mSDtfsCounter, 2069 mSDsluCounter, 8360 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 11858 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:11,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2077 Valid, 11858 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:11,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46354 states. [2021-11-19 13:23:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46354 to 46352. [2021-11-19 13:23:14,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46352 states, 30637 states have (on average 1.2363482064170774) internal successors, (37878), 31593 states have internal predecessors, (37878), 12285 states have call successors, (12285), 3496 states have call predecessors, (12285), 3427 states have return successors, (12424), 11916 states have call predecessors, (12424), 12282 states have call successors, (12424) [2021-11-19 13:23:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46352 states to 46352 states and 62587 transitions. [2021-11-19 13:23:14,699 INFO L78 Accepts]: Start accepts. Automaton has 46352 states and 62587 transitions. Word has length 184 [2021-11-19 13:23:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:14,700 INFO L470 AbstractCegarLoop]: Abstraction has 46352 states and 62587 transitions. [2021-11-19 13:23:14,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:23:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 46352 states and 62587 transitions. [2021-11-19 13:23:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-19 13:23:14,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:14,704 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:14,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:14,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:14,905 INFO L402 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)] === [2021-11-19 13:23:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1249468064, now seen corresponding path program 1 times [2021-11-19 13:23:14,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:14,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365768417] [2021-11-19 13:23:14,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:14,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:14,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:14,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:14,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72b5c1fe-11e2-4023-adc1-e71d06a128c7/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:23:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:16,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:16,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-19 13:23:17,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-19 13:23:18,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:18,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365768417] [2021-11-19 13:23:18,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365768417] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:23:18,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:23:18,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 13:23:18,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115131406] [2021-11-19 13:23:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:18,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:23:18,162 INFO L87 Difference]: Start difference. First operand 46352 states and 62587 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:23:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:20,979 INFO L93 Difference]: Finished difference Result 46358 states and 62592 transitions. [2021-11-19 13:23:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 189 [2021-11-19 13:23:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:21,177 INFO L225 Difference]: With dead ends: 46358 [2021-11-19 13:23:21,178 INFO L226 Difference]: Without dead ends: 46356 [2021-11-19 13:23:21,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:23:21,200 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:21,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3418 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:21,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46356 states.