./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-ethernet-dec-tulip-tulip.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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:36,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:36,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:36,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:36,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:36,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:36,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:36,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:36,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:36,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:36,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:36,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:36,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:36,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:36,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:36,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:36,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:36,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:36,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:36,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:36,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:36,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:36,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:36,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:36,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:36,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:36,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:36,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:36,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:36,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:36,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:36,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:36,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:36,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:36,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:36,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:36,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:36,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:36,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:36,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:36,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:36,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:55:36,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:36,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:36,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:36,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:36,593 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:36,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:36,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:36,594 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:55:36,594 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:36,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:36,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:55:36,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:55:36,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:36,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:55:36,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:55:36,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:55:36,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:36,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:55:36,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:36,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:36,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:36,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:36,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:36,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:36,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:36,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:36,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:36,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:36,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:36,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:36,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:36,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:36,602 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:55:36,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:55:36,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:36,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:36,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:36,603 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 [2021-11-12 22:55:36,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:36,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:36,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:36,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:36,934 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:36,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-12 22:55:37,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/38072de1f/6f2f084a4e5946db843c60ec41d8b489/FLAGa76a97eba [2021-11-12 22:55:38,213 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:38,214 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-12 22:55:38,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/38072de1f/6f2f084a4e5946db843c60ec41d8b489/FLAGa76a97eba [2021-11-12 22:55:38,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/38072de1f/6f2f084a4e5946db843c60ec41d8b489 [2021-11-12 22:55:38,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:55:38,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:55:38,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:38,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:55:38,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:55:38,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:38" (1/1) ... [2021-11-12 22:55:38,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb3028f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:38, skipping insertion in model container [2021-11-12 22:55:38,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:38" (1/1) ... [2021-11-12 22:55:38,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:55:38,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:40,207 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 22:55:40,662 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 22:55:41,848 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 22:55:41,849 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 22:55:41,860 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 22:55:41,862 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 22:55:41,867 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 22:55:41,870 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 22:55:42,594 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 22:55:43,695 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2021-11-12 22:55:43,698 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2021-11-12 22:55:43,700 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2021-11-12 22:55:43,700 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2021-11-12 22:55:43,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:43,808 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 22:55:43,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13f11ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:43, skipping insertion in model container [2021-11-12 22:55:43,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:43,809 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:55:43,812 INFO L158 Benchmark]: Toolchain (without parser) took 5394.23ms. Allocated memory was 90.2MB in the beginning and 165.7MB in the end (delta: 75.5MB). Free memory was 51.3MB in the beginning and 91.6MB in the end (delta: -40.4MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2021-11-12 22:55:43,813 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:55:43,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5391.39ms. Allocated memory was 90.2MB in the beginning and 165.7MB in the end (delta: 75.5MB). Free memory was 51.0MB in the beginning and 91.6MB in the end (delta: -40.6MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2021-11-12 22:55:43,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5391.39ms. Allocated memory was 90.2MB in the beginning and 165.7MB in the end (delta: 75.5MB). Free memory was 51.0MB in the beginning and 91.6MB in the end (delta: -40.6MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5339]: 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:55:46,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:55:46,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:55:46,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:55:46,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:55:46,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:55:46,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:55:46,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:55:46,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:55:46,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:55:46,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:55:46,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:55:46,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:55:46,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:55:46,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:55:46,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:55:46,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:55:46,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:55:46,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:55:46,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:55:46,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:55:46,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:55:46,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:55:46,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:55:46,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:55:46,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:55:46,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:55:46,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:55:46,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:55:46,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:55:46,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:55:46,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:55:46,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:55:46,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:55:46,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:55:46,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:55:46,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:55:46,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:55:46,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:55:46,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:55:46,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:55:46,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:55:46,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:55:46,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:55:46,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:55:46,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:55:46,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:55:46,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:55:46,352 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:55:46,352 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:55:46,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:55:46,352 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:55:46,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:55:46,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:55:46,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:55:46,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:55:46,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:55:46,355 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:55:46,355 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:55:46,355 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:55:46,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:55:46,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:55:46,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:55:46,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:55:46,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:55:46,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:55:46,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:46,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:55:46,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:55:46,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:55:46,358 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:55:46,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:46,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:55:46,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:55:46,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:55:46,359 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435b3fa8073a80dcd9b8b69819909b6031007c35574ec244127e6237bed3be57 [2021-11-12 22:55:46,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:55:46,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:55:46,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:55:46,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:55:46,775 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:55:46,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-12 22:55:46,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/c530ef915/8edcafe64e94436f9fd961fd663f8dba/FLAG165e39ef1 [2021-11-12 22:55:48,178 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:55:48,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-12 22:55:48,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/c530ef915/8edcafe64e94436f9fd961fd663f8dba/FLAG165e39ef1 [2021-11-12 22:55:48,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/data/c530ef915/8edcafe64e94436f9fd961fd663f8dba [2021-11-12 22:55:48,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:55:48,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:55:48,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:48,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:55:48,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:55:48,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:48" (1/1) ... [2021-11-12 22:55:48,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afdd51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:48, skipping insertion in model container [2021-11-12 22:55:48,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:55:48" (1/1) ... [2021-11-12 22:55:48,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:55:48,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:53,317 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2021-11-12 22:55:53,320 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2021-11-12 22:55:53,326 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2021-11-12 22:55:53,326 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2021-11-12 22:55:53,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:53,446 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:55:53,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:55:54,147 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2021-11-12 22:55:54,148 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2021-11-12 22:55:54,149 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2021-11-12 22:55:54,149 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2021-11-12 22:55:54,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:54,196 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:55:54,920 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491234,491247] [2021-11-12 22:55:54,920 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491403,491416] [2021-11-12 22:55:54,921 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491570,491583] [2021-11-12 22:55:54,921 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_8a270c02-6b20-48fd-ba5a-d5522dd6445e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[491738,491751] [2021-11-12 22:55:54,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:55:55,349 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:55:55,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55 WrapperNode [2021-11-12 22:55:55,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:55:55,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:55:55,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:55:55,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:55:55,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:55,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:55,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:55:55,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:55:55,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:55:55,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:55:55,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:55,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:55,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:55,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:56,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:56,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:56,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:56,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:55:56,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:55:56,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:55:56,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:55:56,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (1/1) ... [2021-11-12 22:55:56,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:55:56,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:56,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:55:56,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:55:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2021-11-12 22:55:56,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2021-11-12 22:55:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2021-11-12 22:55:56,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2021-11-12 22:55:56,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:55:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:55:56,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:55:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:55:56,561 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:55:56,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:55:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:55:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:55:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2021-11-12 22:55:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2021-11-12 22:55:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2021-11-12 22:55:56,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2021-11-12 22:55:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:55:56,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:55:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:55:56,563 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:55:56,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:55:56,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:55:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:55:56,564 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:55:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-12 22:55:56,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-12 22:55:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 22:55:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 22:55:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-12 22:55:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-12 22:55:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-11-12 22:55:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-11-12 22:55:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-12 22:55:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-12 22:55:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 22:55:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 22:55:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-12 22:55:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-12 22:55:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:55:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:55:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:55:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:55:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:55:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:55:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2021-11-12 22:55:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2021-11-12 22:55:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:55:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:55:56,569 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 22:55:56,569 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 22:55:56,569 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:55:56,569 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:55:56,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:55:56,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:55:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:55:56,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:55:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:55:56,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:55:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:55:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2021-11-12 22:55:56,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2021-11-12 22:55:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_61 [2021-11-12 22:55:56,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_61 [2021-11-12 22:55:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:55:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2021-11-12 22:55:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2021-11-12 22:55:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:55:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:55:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:55:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 22:55:56,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 22:55:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2021-11-12 22:55:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2021-11-12 22:55:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:55:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:55:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2021-11-12 22:55:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2021-11-12 22:55:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2021-11-12 22:55:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2021-11-12 22:55:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2021-11-12 22:55:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2021-11-12 22:55:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2021-11-12 22:55:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2021-11-12 22:55:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2021-11-12 22:55:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2021-11-12 22:55:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:55:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:55:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 22:55:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 22:55:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:55:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:55:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-12 22:55:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-12 22:55:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:55:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:55:56,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:55:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:55:56,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:55:56,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:55:56,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:55:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:55:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:55:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:55:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2021-11-12 22:55:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2021-11-12 22:55:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:55:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:55:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:55:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:55:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2021-11-12 22:55:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2021-11-12 22:55:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2021-11-12 22:55:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2021-11-12 22:55:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:55:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 22:55:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:55:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 22:55:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 22:55:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 22:55:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 22:55:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 22:55:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 22:55:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 22:55:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 22:55:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:55:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:55:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:55:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:55:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:55:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2021-11-12 22:55:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2021-11-12 22:55:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-12 22:55:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-12 22:55:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:55:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:55:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-12 22:55:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-12 22:55:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:55:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:55:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:55:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2021-11-12 22:55:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2021-11-12 22:55:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:55:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:55:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:55:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:55:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:55:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:55:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:55:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:55:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2021-11-12 22:55:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2021-11-12 22:55:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 22:55:56,586 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 22:55:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:55:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2021-11-12 22:55:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2021-11-12 22:55:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:55:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:55:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2021-11-12 22:55:56,588 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2021-11-12 22:55:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:55:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:55:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:55:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:55:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:55:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:55:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:55:56,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:55:56,589 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-12 22:55:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-12 22:55:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:55:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:55:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-12 22:55:56,590 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-12 22:55:56,590 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2021-11-12 22:55:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2021-11-12 22:55:56,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:55:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:55:56,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-11-12 22:55:56,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2021-11-12 22:55:56,591 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2021-11-12 22:55:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2021-11-12 22:55:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:55:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:55:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2021-11-12 22:55:56,592 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2021-11-12 22:55:56,592 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2021-11-12 22:55:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2021-11-12 22:55:56,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:55:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:55:56,593 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-12 22:55:56,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-12 22:55:56,593 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-12 22:55:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-12 22:55:56,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:55:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:55:56,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:55:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:55:56,594 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2021-11-12 22:55:56,594 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2021-11-12 22:55:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-12 22:55:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-12 22:55:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:55:56,595 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:55:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:55:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2021-11-12 22:55:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2021-11-12 22:55:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:55:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:55:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:55:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:55:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:55:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-12 22:55:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-12 22:55:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:55:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-12 22:55:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-12 22:55:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:55:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:55:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:55:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:55:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2021-11-12 22:55:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2021-11-12 22:55:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2021-11-12 22:55:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2021-11-12 22:55:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2021-11-12 22:55:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2021-11-12 22:55:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:55:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:55:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-12 22:55:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-12 22:55:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2021-11-12 22:55:56,600 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2021-11-12 22:55:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:55:56,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:55:56,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:55:56,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:55:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2021-11-12 22:55:56,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2021-11-12 22:55:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-12 22:55:56,601 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-12 22:55:56,601 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2021-11-12 22:55:56,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2021-11-12 22:55:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2021-11-12 22:55:56,602 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2021-11-12 22:55:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:55:56,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:55:56,602 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:55:56,602 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:55:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 22:55:56,603 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 22:55:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_62 [2021-11-12 22:55:56,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_62 [2021-11-12 22:55:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:55:56,603 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:55:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:55:56,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:55:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:55:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:55:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2021-11-12 22:55:56,604 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2021-11-12 22:55:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:55:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:55:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:55:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:55:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61___0 [2021-11-12 22:55:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61___0 [2021-11-12 22:55:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2021-11-12 22:55:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2021-11-12 22:55:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2021-11-12 22:55:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2021-11-12 22:55:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 22:55:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 22:55:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2021-11-12 22:55:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2021-11-12 22:55:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 22:55:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 22:55:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:55:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:55:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 22:55:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 22:55:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 22:55:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 22:55:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-12 22:55:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-12 22:55:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2021-11-12 22:55:56,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2021-11-12 22:55:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:55:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:55:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2021-11-12 22:55:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2021-11-12 22:55:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2021-11-12 22:55:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2021-11-12 22:55:56,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:55:56,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:56:16,213 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:58:37,106 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:58:38,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:58:38,429 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 22:58:38,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:58:38 BoogieIcfgContainer [2021-11-12 22:58:38,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:58:38,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:58:38,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:58:38,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:58:38,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:55:48" (1/3) ... [2021-11-12 22:58:38,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361bb87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:58:38, skipping insertion in model container [2021-11-12 22:58:38,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:55:55" (2/3) ... [2021-11-12 22:58:38,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361bb87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:58:38, skipping insertion in model container [2021-11-12 22:58:38,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:58:38" (3/3) ... [2021-11-12 22:58:38,445 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-12 22:58:38,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:58:38,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 22:58:38,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:58:38,531 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 22:58:38,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 22:58:38,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 3485 states, 2400 states have (on average 1.3654166666666667) internal successors, (3277), 2501 states have internal predecessors, (3277), 951 states have call successors, (951), 133 states have call predecessors, (951), 132 states have return successors, (944), 899 states have call predecessors, (944), 944 states have call successors, (944) [2021-11-12 22:58:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-12 22:58:38,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:38,638 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:38,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:58:38,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:38,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1591897182, now seen corresponding path program 1 times [2021-11-12 22:58:38,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:38,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725681308] [2021-11-12 22:58:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:38,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:38,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:38,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:38,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:59:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:12,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 5241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:12,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 22:59:12,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 22:59:13,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:13,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725681308] [2021-11-12 22:59:13,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725681308] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:13,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:59:13,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:59:13,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422960596] [2021-11-12 22:59:13,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:13,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:59:13,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:59:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:59:13,421 INFO L87 Difference]: Start difference. First operand has 3485 states, 2400 states have (on average 1.3654166666666667) internal successors, (3277), 2501 states have internal predecessors, (3277), 951 states have call successors, (951), 133 states have call predecessors, (951), 132 states have return successors, (944), 899 states have call predecessors, (944), 944 states have call successors, (944) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:59:16,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:29,428 INFO L93 Difference]: Finished difference Result 13659 states and 20661 transitions. [2021-11-12 22:59:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:29,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 171 [2021-11-12 22:59:29,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:29,548 INFO L225 Difference]: With dead ends: 13659 [2021-11-12 22:59:29,549 INFO L226 Difference]: Without dead ends: 10186 [2021-11-12 22:59:29,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 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 22:59:29,604 INFO L933 BasicCegarLoop]: 6990 mSDtfsCounter, 10090 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13951.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10090 SdHoareTripleChecker+Valid, 20116 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 103.41ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15099.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:29,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10090 Valid, 20116 Invalid, 1945 Unknown, 0 Unchecked, 103.41ms Time], IncrementalHoareTripleChecker [20 Valid, 1924 Invalid, 1 Unknown, 0 Unchecked, 15099.26ms Time] [2021-11-12 22:59:29,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2021-11-12 22:59:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 10159. [2021-11-12 22:59:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10159 states, 7030 states have (on average 1.3658605974395448) internal successors, (9602), 7326 states have internal predecessors, (9602), 2737 states have call successors, (2737), 390 states have call predecessors, (2737), 389 states have return successors, (2733), 2598 states have call predecessors, (2733), 2733 states have call successors, (2733) [2021-11-12 22:59:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10159 states to 10159 states and 15072 transitions. [2021-11-12 22:59:30,521 INFO L78 Accepts]: Start accepts. Automaton has 10159 states and 15072 transitions. Word has length 171 [2021-11-12 22:59:30,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:30,523 INFO L470 AbstractCegarLoop]: Abstraction has 10159 states and 15072 transitions. [2021-11-12 22:59:30,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 22:59:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 10159 states and 15072 transitions. [2021-11-12 22:59:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 22:59:30,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:30,531 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:30,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:30,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:30,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 22:59:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:30,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1866524445, now seen corresponding path program 1 times [2021-11-12 22:59:30,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:30,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360322425] [2021-11-12 22:59:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:30,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:30,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:30,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:30,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:00:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:04,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 5324 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:00:04,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:04,644 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:00:04,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:00:05,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:05,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360322425] [2021-11-12 23:00:05,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360322425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:05,181 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:05,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:00:05,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611507435] [2021-11-12 23:00:05,181 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:05,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:00:05,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:05,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:00:05,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:00:05,187 INFO L87 Difference]: Start difference. First operand 10159 states and 15072 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:00:08,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:00:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:22,309 INFO L93 Difference]: Finished difference Result 28336 states and 42002 transitions. [2021-11-12 23:00:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:22,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 180 [2021-11-12 23:00:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:22,465 INFO L225 Difference]: With dead ends: 28336 [2021-11-12 23:00:22,465 INFO L226 Difference]: Without dead ends: 18208 [2021-11-12 23:00:22,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 356 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 23:00:22,521 INFO L933 BasicCegarLoop]: 6474 mSDtfsCounter, 8384 mSDsluCounter, 8313 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14885.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8384 SdHoareTripleChecker+Valid, 14787 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.15ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16064.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:22,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8384 Valid, 14787 Invalid, 1993 Unknown, 0 Unchecked, 54.15ms Time], IncrementalHoareTripleChecker [41 Valid, 1951 Invalid, 1 Unknown, 0 Unchecked, 16064.42ms Time] [2021-11-12 23:00:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18208 states. [2021-11-12 23:00:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18208 to 18156. [2021-11-12 23:00:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18156 states, 12515 states have (on average 1.3638034358769477) internal successors, (17068), 13012 states have internal predecessors, (17068), 4895 states have call successors, (4895), 746 states have call predecessors, (4895), 743 states have return successors, (4891), 4666 states have call predecessors, (4891), 4891 states have call successors, (4891) [2021-11-12 23:00:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18156 states to 18156 states and 26854 transitions. [2021-11-12 23:00:23,813 INFO L78 Accepts]: Start accepts. Automaton has 18156 states and 26854 transitions. Word has length 180 [2021-11-12 23:00:23,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:23,814 INFO L470 AbstractCegarLoop]: Abstraction has 18156 states and 26854 transitions. [2021-11-12 23:00:23,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:00:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 18156 states and 26854 transitions. [2021-11-12 23:00:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-12 23:00:23,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:23,820 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:23,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:24,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:24,040 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 23:00:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -971306681, now seen corresponding path program 1 times [2021-11-12 23:00:24,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:24,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845033310] [2021-11-12 23:00:24,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:24,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:24,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:24,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:00:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:56,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 5282 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:00:56,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:00:56,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:00:57,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:57,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845033310] [2021-11-12 23:00:57,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845033310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:57,221 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:00:57,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:00:57,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021273631] [2021-11-12 23:00:57,222 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:57,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:00:57,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:00:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:00:57,223 INFO L87 Difference]: Start difference. First operand 18156 states and 26854 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:01:00,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:01:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:01,162 INFO L93 Difference]: Finished difference Result 49772 states and 73703 transitions. [2021-11-12 23:01:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:01:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2021-11-12 23:01:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:01,328 INFO L225 Difference]: With dead ends: 49772 [2021-11-12 23:01:01,328 INFO L226 Difference]: Without dead ends: 31647 [2021-11-12 23:01:01,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 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 23:01:01,409 INFO L933 BasicCegarLoop]: 6032 mSDtfsCounter, 4785 mSDsluCounter, 5061 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2954.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 11093 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.09ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3098.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:01,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4785 Valid, 11093 Invalid, 59 Unknown, 0 Unchecked, 17.09ms Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 3098.40ms Time] [2021-11-12 23:01:01,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31647 states. [2021-11-12 23:01:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31647 to 31615. [2021-11-12 23:01:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31615 states, 21707 states have (on average 1.36513567052103) internal successors, (29633), 22589 states have internal predecessors, (29633), 8591 states have call successors, (8591), 1319 states have call predecessors, (8591), 1314 states have return successors, (8593), 8163 states have call predecessors, (8593), 8587 states have call successors, (8593) [2021-11-12 23:01:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31615 states to 31615 states and 46817 transitions. [2021-11-12 23:01:03,671 INFO L78 Accepts]: Start accepts. Automaton has 31615 states and 46817 transitions. Word has length 181 [2021-11-12 23:01:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:01:03,672 INFO L470 AbstractCegarLoop]: Abstraction has 31615 states and 46817 transitions. [2021-11-12 23:01:03,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:01:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 31615 states and 46817 transitions. [2021-11-12 23:01:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-12 23:01:03,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:01:03,678 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:03,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:01:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:01:03,892 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 23:01:03,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:01:03,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1349082925, now seen corresponding path program 1 times [2021-11-12 23:01:03,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:01:03,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116197958] [2021-11-12 23:01:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:01:03,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:01:03,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:01:03,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:01:03,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:01:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:01:35,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 5333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:01:35,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:01:36,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:01:36,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:36,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116197958] [2021-11-12 23:01:36,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116197958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:01:36,664 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:01:36,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:01:36,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455414820] [2021-11-12 23:01:36,665 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:01:36,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:01:36,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:01:36,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:01:36,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:01:36,666 INFO L87 Difference]: Start difference. First operand 31615 states and 46817 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-12 23:01:39,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:01:54,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:01:54,790 INFO L93 Difference]: Finished difference Result 120303 states and 177932 transitions. [2021-11-12 23:01:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:01:54,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 188 [2021-11-12 23:01:54,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:01:55,270 INFO L225 Difference]: With dead ends: 120303 [2021-11-12 23:01:55,271 INFO L226 Difference]: Without dead ends: 88719 [2021-11-12 23:01:55,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 372 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 23:01:55,756 INFO L933 BasicCegarLoop]: 7196 mSDtfsCounter, 13337 mSDsluCounter, 8279 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 1861 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14406.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13337 SdHoareTripleChecker+Valid, 15475 SdHoareTripleChecker+Invalid, 3769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.44ms SdHoareTripleChecker+Time, 1861 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15981.07ms IncrementalHoareTripleChecker+Time [2021-11-12 23:01:55,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13337 Valid, 15475 Invalid, 3769 Unknown, 0 Unchecked, 40.44ms Time], IncrementalHoareTripleChecker [1861 Valid, 1907 Invalid, 1 Unknown, 0 Unchecked, 15981.07ms Time] [2021-11-12 23:01:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88719 states. [2021-11-12 23:02:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88719 to 88619. [2021-11-12 23:02:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88619 states, 60853 states have (on average 1.3629894992851626) internal successors, (82942), 63393 states have internal predecessors, (82942), 24004 states have call successors, (24004), 3772 states have call predecessors, (24004), 3759 states have return successors, (24018), 22761 states have call predecessors, (24018), 24000 states have call successors, (24018) [2021-11-12 23:02:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88619 states to 88619 states and 130964 transitions. [2021-11-12 23:02:01,846 INFO L78 Accepts]: Start accepts. Automaton has 88619 states and 130964 transitions. Word has length 188 [2021-11-12 23:02:01,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:01,851 INFO L470 AbstractCegarLoop]: Abstraction has 88619 states and 130964 transitions. [2021-11-12 23:02:01,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-12 23:02:01,852 INFO L276 IsEmpty]: Start isEmpty. Operand 88619 states and 130964 transitions. [2021-11-12 23:02:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-12 23:02:01,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:01,858 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:01,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:02,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:02,076 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 23:02:02,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:02,077 INFO L85 PathProgramCache]: Analyzing trace with hash -392155911, now seen corresponding path program 1 times [2021-11-12 23:02:02,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:02,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570227203] [2021-11-12 23:02:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:02,094 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:02,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:02,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:02,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a270c02-6b20-48fd-ba5a-d5522dd6445e/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:02:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:34,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:02:34,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:02:34,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:02:35,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:35,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570227203] [2021-11-12 23:02:35,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570227203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:02:35,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:02:35,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:02:35,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231619074] [2021-11-12 23:02:35,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:35,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:02:35,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:02:35,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:02:35,206 INFO L87 Difference]: Start difference. First operand 88619 states and 130964 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-12 23:02:38,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:02:58,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:58,009 INFO L93 Difference]: Finished difference Result 333148 states and 491649 transitions. [2021-11-12 23:02:58,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:02:58,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 196 [2021-11-12 23:02:58,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:59,498 INFO L225 Difference]: With dead ends: 333148 [2021-11-12 23:02:59,498 INFO L226 Difference]: Without dead ends: 244560 [2021-11-12 23:02:59,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 388 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 23:02:59,744 INFO L933 BasicCegarLoop]: 7794 mSDtfsCounter, 13092 mSDsluCounter, 8247 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 1832 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14260.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13092 SdHoareTripleChecker+Valid, 16041 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.32ms SdHoareTripleChecker+Time, 1832 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15911.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:59,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13092 Valid, 16041 Invalid, 3705 Unknown, 0 Unchecked, 44.32ms Time], IncrementalHoareTripleChecker [1832 Valid, 1872 Invalid, 1 Unknown, 0 Unchecked, 15911.72ms Time] [2021-11-12 23:02:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244560 states.