./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF --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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:26:51,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:26:51,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:26:51,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:26:51,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:26:51,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:26:51,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:26:51,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:26:51,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:26:51,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:26:51,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:26:51,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:26:51,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:26:51,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:26:51,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:26:51,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:26:51,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:26:51,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:26:51,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:26:51,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:26:51,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:26:51,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:26:51,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:26:51,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:26:51,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:26:51,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:26:51,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:26:51,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:26:51,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:26:51,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:26:51,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:26:51,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:26:51,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:26:51,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:26:51,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:26:51,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:26:51,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:26:51,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:26:51,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:26:51,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:26:51,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:26:51,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:26:51,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:26:51,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:26:51,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:26:51,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:26:51,556 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:26:51,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:26:51,557 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:26:51,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:26:51,557 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:26:51,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:26:51,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:26:51,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:26:51,558 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:26:51,559 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:26:51,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:26:51,559 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:26:51,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:26:51,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:26:51,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:26:51,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:26:51,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:26:51,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:26:51,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:26:51,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:26:51,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:26:51,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:26:51,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:26:51,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:26:51,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:26:51,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:26:51,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:26:51,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:26:51,565 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:26:51,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:26:51,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:26:51,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:26:51,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:26:51,566 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2021-11-12 22:26:51,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:26:51,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:26:51,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:26:51,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:26:51,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:26:51,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-12 22:26:51,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/3eb719be7/9cc8f541d88a48c1a424ad9622e66977/FLAGfc3f1c646 [2021-11-12 22:26:52,949 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:26:52,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-12 22:26:53,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/3eb719be7/9cc8f541d88a48c1a424ad9622e66977/FLAGfc3f1c646 [2021-11-12 22:26:53,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/3eb719be7/9cc8f541d88a48c1a424ad9622e66977 [2021-11-12 22:26:53,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:26:53,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:26:53,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:26:53,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:26:53,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:26:53,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:26:53" (1/1) ... [2021-11-12 22:26:53,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126ed73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:26:53, skipping insertion in model container [2021-11-12 22:26:53,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:26:53" (1/1) ... [2021-11-12 22:26:53,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:26:53,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:26:55,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,408 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,417 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,435 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,485 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,497 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,507 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,521 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,583 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,592 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:55,618 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:56,581 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:26:57,442 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-12 22:26:57,445 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-12 22:26:57,445 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-12 22:26:57,446 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-12 22:26:57,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:26:57,537 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) [2021-11-12 22:26:57,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2276876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:26:57, skipping insertion in model container [2021-11-12 22:26:57,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:26:57,539 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:26:57,541 INFO L158 Benchmark]: Toolchain (without parser) took 4219.47ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 61.7MB in the beginning and 97.2MB in the end (delta: -35.5MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2021-11-12 22:26:57,542 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:26:57,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4214.69ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 61.5MB in the beginning and 97.2MB in the end (delta: -35.7MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2021-11-12 22:26:57,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4214.69ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 61.5MB in the beginning and 97.2MB in the end (delta: -35.7MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5655]: 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF --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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:26:59,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:26:59,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:26:59,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:26:59,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:26:59,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:26:59,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:26:59,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:26:59,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:26:59,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:26:59,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:26:59,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:26:59,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:26:59,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:26:59,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:26:59,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:26:59,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:26:59,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:26:59,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:26:59,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:26:59,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:26:59,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:26:59,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:26:59,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:26:59,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:26:59,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:26:59,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:26:59,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:26:59,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:26:59,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:26:59,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:26:59,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:26:59,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:26:59,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:26:59,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:26:59,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:26:59,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:26:59,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:26:59,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:26:59,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:26:59,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:26:59,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:26:59,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:26:59,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:26:59,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:26:59,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:26:59,918 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:26:59,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:26:59,919 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:26:59,919 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:26:59,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:26:59,919 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:26:59,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:26:59,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:26:59,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:26:59,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:26:59,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:26:59,921 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:26:59,922 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:26:59,922 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:26:59,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:26:59,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:26:59,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:26:59,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:26:59,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:26:59,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:26:59,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:26:59,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:26:59,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:26:59,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:26:59,925 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:26:59,925 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:26:59,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:26:59,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:26:59,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:26:59,926 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2021-11-12 22:27:00,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:00,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:00,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:00,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:00,366 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:00,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-12 22:27:00,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/f832bb283/056958757fa146869b754a362346c266/FLAG80a777a28 [2021-11-12 22:27:01,508 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:01,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-12 22:27:01,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/f832bb283/056958757fa146869b754a362346c266/FLAG80a777a28 [2021-11-12 22:27:01,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/data/f832bb283/056958757fa146869b754a362346c266 [2021-11-12 22:27:01,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:01,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:01,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:01,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:01,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:01,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:01" (1/1) ... [2021-11-12 22:27:01,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245f620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:01, skipping insertion in model container [2021-11-12 22:27:01,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:01" (1/1) ... [2021-11-12 22:27:01,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:02,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:05,335 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-12 22:27:05,338 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-12 22:27:05,339 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-12 22:27:05,339 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-12 22:27:05,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:05,418 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:27:05,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:05,972 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-12 22:27:05,973 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-12 22:27:05,974 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-12 22:27:05,975 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-12 22:27:05,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:06,027 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:06,554 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-12 22:27:06,555 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-12 22:27:06,555 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-12 22:27:06,557 WARN L228 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_fe01545d-cac1-483e-a73e-ae0ae6274f4a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-12 22:27:06,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:06,883 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:06,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06 WrapperNode [2021-11-12 22:27:06,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:06,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:06,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:06,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:06,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:07,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:07,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:07,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:07,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:07,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:07,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:07,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:07,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (1/1) ... [2021-11-12 22:27:07,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:07,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:07,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:07,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2021-11-12 22:27:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2021-11-12 22:27:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-12 22:27:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2021-11-12 22:27:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2021-11-12 22:27:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:27:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:27:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:27:07,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:27:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:27:07,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:27:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:27:07,771 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:27:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-12 22:27:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-12 22:27:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-12 22:27:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-12 22:27:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:27:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:27:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-12 22:27:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-12 22:27:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-12 22:27:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-12 22:27:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-12 22:27:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-12 22:27:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-11-12 22:27:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-11-12 22:27:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 22:27:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2021-11-12 22:27:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2021-11-12 22:27:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:27:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:27:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 22:27:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 22:27:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2021-11-12 22:27:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2021-11-12 22:27:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:27:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:27:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-12 22:27:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-12 22:27:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 22:27:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 22:27:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:27:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:27:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:27:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2021-11-12 22:27:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2021-11-12 22:27:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:27:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:27:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 22:27:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-12 22:27:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:27:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:27:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:27:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:27:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2021-11-12 22:27:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2021-11-12 22:27:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:27:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:27:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2021-11-12 22:27:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2021-11-12 22:27:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:27:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:27:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:27:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:27:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:27:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:27:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:27:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:27:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:27:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2021-11-12 22:27:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2021-11-12 22:27:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:27:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:27:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:27:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:27:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:27:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:27:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-12 22:27:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-12 22:27:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:27:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:27:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:27:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2021-11-12 22:27:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2021-11-12 22:27:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2021-11-12 22:27:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2021-11-12 22:27:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2021-11-12 22:27:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2021-11-12 22:27:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-12 22:27:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-12 22:27:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2021-11-12 22:27:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2021-11-12 22:27:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-12 22:27:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-12 22:27:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2021-11-12 22:27:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2021-11-12 22:27:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-12 22:27:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-12 22:27:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2021-11-12 22:27:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2021-11-12 22:27:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2021-11-12 22:27:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2021-11-12 22:27:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:27:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-11-12 22:27:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-11-12 22:27:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:27:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2021-11-12 22:27:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2021-11-12 22:27:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:27:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:27:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:27:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:27:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:27:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2021-11-12 22:27:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2021-11-12 22:27:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:27:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:27:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2021-11-12 22:27:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2021-11-12 22:27:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-12 22:27:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-12 22:27:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:27:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:27:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-12 22:27:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-12 22:27:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-12 22:27:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-12 22:27:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-12 22:27:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-12 22:27:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:27:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:27:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2021-11-12 22:27:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2021-11-12 22:27:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:27:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:27:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2021-11-12 22:27:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2021-11-12 22:27:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:27:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:27:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:27:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-12 22:27:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-12 22:27:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:27:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:27:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:27:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:27:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:27:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:27:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:27:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:27:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:27:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-12 22:27:07,795 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-12 22:27:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:27:07,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:27:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2021-11-12 22:27:07,795 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2021-11-12 22:27:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:27:07,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:27:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-12 22:27:07,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-12 22:27:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:27:07,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:27:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:27:07,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:27:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2021-11-12 22:27:07,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2021-11-12 22:27:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:27:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:27:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:27:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:27:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:27:07,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:27:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2021-11-12 22:27:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2021-11-12 22:27:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2021-11-12 22:27:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2021-11-12 22:27:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-12 22:27:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-12 22:27:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2021-11-12 22:27:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2021-11-12 22:27:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:27:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:27:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2021-11-12 22:27:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2021-11-12 22:27:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2021-11-12 22:27:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2021-11-12 22:27:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2021-11-12 22:27:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2021-11-12 22:27:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2021-11-12 22:27:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2021-11-12 22:27:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:27:07,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:27:18,425 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:27:48,681 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:27:48,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:48,761 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:27:48,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:48 BoogieIcfgContainer [2021-11-12 22:27:48,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:48,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:48,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:48,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:48,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:01" (1/3) ... [2021-11-12 22:27:48,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563827d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:48, skipping insertion in model container [2021-11-12 22:27:48,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:06" (2/3) ... [2021-11-12 22:27:48,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563827d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:48, skipping insertion in model container [2021-11-12 22:27:48,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:48" (3/3) ... [2021-11-12 22:27:48,775 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-12 22:27:48,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:48,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:27:48,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:48,845 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 [2021-11-12 22:27:48,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:27:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) [2021-11-12 22:27:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-12 22:27:48,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:48,950 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:48,951 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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)] === [2021-11-12 22:27:48,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:48,956 INFO L85 PathProgramCache]: Analyzing trace with hash 820136742, now seen corresponding path program 1 times [2021-11-12 22:27:48,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:48,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480446446] [2021-11-12 22:27:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:48,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:48,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:48,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:48,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:27:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:51,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:27:51,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-12 22:27:52,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-12 22:27:54,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:54,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480446446] [2021-11-12 22:27:54,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480446446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:54,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:54,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:27:54,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38179296] [2021-11-12 22:27:54,029 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:54,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:27:54,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:54,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:27:54,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:27:54,080 INFO L87 Difference]: Start difference. First operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-12 22:27:56,372 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 [] [2021-11-12 22:28:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:07,044 INFO L93 Difference]: Finished difference Result 8096 states and 11895 transitions. [2021-11-12 22:28:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:28:07,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 457 [2021-11-12 22:28:07,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:07,115 INFO L225 Difference]: With dead ends: 8096 [2021-11-12 22:28:07,115 INFO L226 Difference]: Without dead ends: 5980 [2021-11-12 22:28:07,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 912 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:07,140 INFO L933 BasicCegarLoop]: 4126 mSDtfsCounter, 7455 mSDsluCounter, 4777 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 959 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11246.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7455 SdHoareTripleChecker+Valid, 8903 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.90ms SdHoareTripleChecker+Time, 959 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12347.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:07,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7455 Valid, 8903 Invalid, 2100 Unknown, 0 Unchecked, 83.90ms Time], IncrementalHoareTripleChecker [959 Valid, 1140 Invalid, 1 Unknown, 0 Unchecked, 12347.66ms Time] [2021-11-12 22:28:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-11-12 22:28:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 5928. [2021-11-12 22:28:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 4229 states have (on average 1.3057460392527784) internal successors, (5522), 4269 states have internal predecessors, (5522), 1459 states have call successors, (1459), 238 states have call predecessors, (1459), 237 states have return successors, (1545), 1447 states have call predecessors, (1545), 1455 states have call successors, (1545) [2021-11-12 22:28:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8526 transitions. [2021-11-12 22:28:07,678 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8526 transitions. Word has length 457 [2021-11-12 22:28:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 5928 states and 8526 transitions. [2021-11-12 22:28:07,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-12 22:28:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8526 transitions. [2021-11-12 22:28:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-12 22:28:07,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:07,697 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:07,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:28:07,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:07,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:28:07,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:07,912 INFO L85 PathProgramCache]: Analyzing trace with hash -113970776, now seen corresponding path program 1 times [2021-11-12 22:28:07,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:07,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482470288] [2021-11-12 22:28:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:07,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:07,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:07,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:07,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:28:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:10,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2099 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:10,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-12 22:28:11,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-12 22:28:12,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:12,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482470288] [2021-11-12 22:28:12,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482470288] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:12,614 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:12,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:28:12,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100816706] [2021-11-12 22:28:12,620 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:12,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:28:12,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:28:12,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:12,627 INFO L87 Difference]: Start difference. First operand 5928 states and 8526 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-12 22:28:14,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:22,573 INFO L93 Difference]: Finished difference Result 23001 states and 33149 transitions. [2021-11-12 22:28:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:28:22,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 457 [2021-11-12 22:28:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:22,726 INFO L225 Difference]: With dead ends: 23001 [2021-11-12 22:28:22,726 INFO L226 Difference]: Without dead ends: 17156 [2021-11-12 22:28:22,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 912 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:22,767 INFO L933 BasicCegarLoop]: 4054 mSDtfsCounter, 5734 mSDsluCounter, 5765 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8559.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5734 SdHoareTripleChecker+Valid, 9819 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.03ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9201.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:22,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5734 Valid, 9819 Invalid, 1054 Unknown, 0 Unchecked, 36.03ms Time], IncrementalHoareTripleChecker [19 Valid, 1034 Invalid, 1 Unknown, 0 Unchecked, 9201.94ms Time] [2021-11-12 22:28:22,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17156 states. [2021-11-12 22:28:23,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17156 to 17130. [2021-11-12 22:28:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17130 states, 12257 states have (on average 1.3126376764297951) internal successors, (16089), 12355 states have internal predecessors, (16089), 4167 states have call successors, (4167), 704 states have call predecessors, (4167), 703 states have return successors, (4433), 4151 states have call predecessors, (4433), 4163 states have call successors, (4433) [2021-11-12 22:28:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17130 states to 17130 states and 24689 transitions. [2021-11-12 22:28:23,914 INFO L78 Accepts]: Start accepts. Automaton has 17130 states and 24689 transitions. Word has length 457 [2021-11-12 22:28:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:23,915 INFO L470 AbstractCegarLoop]: Abstraction has 17130 states and 24689 transitions. [2021-11-12 22:28:23,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-12 22:28:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 17130 states and 24689 transitions. [2021-11-12 22:28:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-12 22:28:23,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:23,932 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:23,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:24,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:24,156 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)] === [2021-11-12 22:28:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1620499840, now seen corresponding path program 1 times [2021-11-12 22:28:24,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:24,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663059874] [2021-11-12 22:28:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:24,160 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:24,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:24,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:24,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:28:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:26,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:26,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-12 22:28:27,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-12 22:28:28,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:28,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663059874] [2021-11-12 22:28:28,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663059874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:28,835 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:28,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:28:28,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536337123] [2021-11-12 22:28:28,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:28,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:28:28,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:28:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:28:28,837 INFO L87 Difference]: Start difference. First operand 17130 states and 24689 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:28:31,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:32,107 INFO L93 Difference]: Finished difference Result 50171 states and 73076 transitions. [2021-11-12 22:28:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:28:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 466 [2021-11-12 22:28:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:32,340 INFO L225 Difference]: With dead ends: 50171 [2021-11-12 22:28:32,341 INFO L226 Difference]: Without dead ends: 33124 [2021-11-12 22:28:32,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:28:32,445 INFO L933 BasicCegarLoop]: 3589 mSDtfsCounter, 2799 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2284.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2339.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:32,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2799 Valid, 6648 Invalid, 32 Unknown, 0 Unchecked, 14.30ms Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2339.07ms Time] [2021-11-12 22:28:32,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33124 states. [2021-11-12 22:28:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33124 to 33081. [2021-11-12 22:28:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33081 states, 23618 states have (on average 1.3122618341942587) internal successors, (30993), 23830 states have internal predecessors, (30993), 8073 states have call successors, (8073), 1397 states have call predecessors, (8073), 1387 states have return successors, (9347), 8006 states have call predecessors, (9347), 8069 states have call successors, (9347) [2021-11-12 22:28:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33081 states to 33081 states and 48413 transitions. [2021-11-12 22:28:34,489 INFO L78 Accepts]: Start accepts. Automaton has 33081 states and 48413 transitions. Word has length 466 [2021-11-12 22:28:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:34,490 INFO L470 AbstractCegarLoop]: Abstraction has 33081 states and 48413 transitions. [2021-11-12 22:28:34,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:28:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 33081 states and 48413 transitions. [2021-11-12 22:28:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-12 22:28:34,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:34,508 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:34,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:34,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:34,732 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)] === [2021-11-12 22:28:34,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash -78835710, now seen corresponding path program 1 times [2021-11-12 22:28:34,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:34,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825915561] [2021-11-12 22:28:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:34,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:34,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:34,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:34,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:28:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:37,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:37,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-12 22:28:38,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-12 22:28:39,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:39,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825915561] [2021-11-12 22:28:39,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825915561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:39,659 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:39,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:28:39,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730698593] [2021-11-12 22:28:39,660 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:39,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:28:39,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:28:39,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:39,663 INFO L87 Difference]: Start difference. First operand 33081 states and 48413 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-12 22:28:41,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:28:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:50,871 INFO L93 Difference]: Finished difference Result 108497 states and 158705 transitions. [2021-11-12 22:28:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:28:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 484 [2021-11-12 22:28:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:51,645 INFO L225 Difference]: With dead ends: 108497 [2021-11-12 22:28:51,645 INFO L226 Difference]: Without dead ends: 75499 [2021-11-12 22:28:51,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 966 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:51,808 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 5751 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8122.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5751 SdHoareTripleChecker+Valid, 9589 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.71ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8739.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:51,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5751 Valid, 9589 Invalid, 1102 Unknown, 0 Unchecked, 30.71ms Time], IncrementalHoareTripleChecker [32 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 8739.44ms Time] [2021-11-12 22:28:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75499 states. [2021-11-12 22:28:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75499 to 75429. [2021-11-12 22:28:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75429 states, 53936 states have (on average 1.3103493028774844) internal successors, (70675), 54452 states have internal predecessors, (70675), 18281 states have call successors, (18281), 3243 states have call predecessors, (18281), 3209 states have return successors, (21144), 18090 states have call predecessors, (21144), 18277 states have call successors, (21144) [2021-11-12 22:28:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75429 states to 75429 states and 110100 transitions. [2021-11-12 22:28:56,881 INFO L78 Accepts]: Start accepts. Automaton has 75429 states and 110100 transitions. Word has length 484 [2021-11-12 22:28:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:56,885 INFO L470 AbstractCegarLoop]: Abstraction has 75429 states and 110100 transitions. [2021-11-12 22:28:56,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-12 22:28:56,886 INFO L276 IsEmpty]: Start isEmpty. Operand 75429 states and 110100 transitions. [2021-11-12 22:28:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-12 22:28:56,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:56,897 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:56,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:57,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:57,120 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:28:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1698188113, now seen corresponding path program 1 times [2021-11-12 22:28:57,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:57,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368733433] [2021-11-12 22:28:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:57,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:57,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:57,126 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:57,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:28:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:59,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:29:00,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-12 22:29:00,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-12 22:29:02,143 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:02,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368733433] [2021-11-12 22:29:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368733433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:02,144 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:02,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:29:02,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307819855] [2021-11-12 22:29:02,144 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:02,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:29:02,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:02,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:29:02,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:29:02,147 INFO L87 Difference]: Start difference. First operand 75429 states and 110100 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-12 22:29:04,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:29:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:17,570 INFO L93 Difference]: Finished difference Result 243766 states and 353460 transitions. [2021-11-12 22:29:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:29:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 486 [2021-11-12 22:29:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:18,936 INFO L225 Difference]: With dead ends: 243766 [2021-11-12 22:29:18,936 INFO L226 Difference]: Without dead ends: 168420 [2021-11-12 22:29:19,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 968 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:29:19,176 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 5655 mSDsluCounter, 5377 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8849.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 10146 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.69ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9489.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:19,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 10146 Invalid, 1309 Unknown, 0 Unchecked, 30.69ms Time], IncrementalHoareTripleChecker [64 Valid, 1244 Invalid, 1 Unknown, 0 Unchecked, 9489.44ms Time] [2021-11-12 22:29:19,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168420 states. [2021-11-12 22:29:26,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168420 to 168322. [2021-11-12 22:29:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168322 states, 119354 states have (on average 1.3069775625450342) internal successors, (155993), 120612 states have internal predecessors, (155993), 41466 states have call successors, (41466), 7584 states have call predecessors, (41466), 7499 states have return successors, (44800), 40941 states have call predecessors, (44800), 41462 states have call successors, (44800) [2021-11-12 22:29:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168322 states to 168322 states and 242259 transitions. [2021-11-12 22:29:28,404 INFO L78 Accepts]: Start accepts. Automaton has 168322 states and 242259 transitions. Word has length 486 [2021-11-12 22:29:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:28,405 INFO L470 AbstractCegarLoop]: Abstraction has 168322 states and 242259 transitions. [2021-11-12 22:29:28,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-12 22:29:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 168322 states and 242259 transitions. [2021-11-12 22:29:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-11-12 22:29:28,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:28,416 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:28,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:28,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:28,632 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)] === [2021-11-12 22:29:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash -600721175, now seen corresponding path program 1 times [2021-11-12 22:29:28,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:28,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058595424] [2021-11-12 22:29:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:28,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:28,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:28,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:28,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe01545d-cac1-483e-a73e-ae0ae6274f4a/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:29:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:31,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:29:31,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2021-11-12 22:29:36,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:39,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2021-11-12 22:29:39,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:39,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058595424] [2021-11-12 22:29:39,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058595424] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:39,216 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:39,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 22:29:39,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314948210] [2021-11-12 22:29:39,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:39,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:29:39,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:39,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:29:39,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:29:39,220 INFO L87 Difference]: Start difference. First operand 168322 states and 242259 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2021-11-12 22:29:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:45,417 INFO L93 Difference]: Finished difference Result 168328 states and 242264 transitions. [2021-11-12 22:29:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:29:45,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 513 [2021-11-12 22:29:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:46,470 INFO L225 Difference]: With dead ends: 168328 [2021-11-12 22:29:46,470 INFO L226 Difference]: Without dead ends: 168326 [2021-11-12 22:29:46,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:29:46,537 INFO L933 BasicCegarLoop]: 3066 mSDtfsCounter, 2894 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 342.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 349.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:46,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2905 Valid, 9186 Invalid, 21 Unknown, 0 Unchecked, 29.19ms Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 349.41ms Time] [2021-11-12 22:29:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168326 states.