./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-dmfe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:05:18,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:05:18,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:05:18,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:05:18,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:05:18,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:05:18,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:05:18,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:05:18,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:05:18,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:05:18,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:05:18,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:05:18,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:05:18,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:05:18,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:05:18,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:05:18,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:05:18,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:05:18,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:05:18,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:05:18,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:05:18,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:05:18,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:05:18,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:05:18,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:05:18,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:05:18,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:05:18,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:05:18,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:05:18,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:05:18,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:05:18,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:05:18,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:05:18,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:05:18,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:05:18,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:05:18,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:05:18,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:05:18,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:05:18,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:05:18,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:05:18,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:05:18,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:05:18,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:05:18,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:05:18,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:05:18,944 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:05:18,944 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:05:18,944 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:05:18,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:05:18,945 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:05:18,945 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:05:18,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:05:18,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:05:18,947 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:05:18,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:05:18,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:05:18,948 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:05:18,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:05:18,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:05:18,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:05:18,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:05:18,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:05:18,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:05:18,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:05:18,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:05:18,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:05:18,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:05:18,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:05:18,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:05:18,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:05:18,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:05:18,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:05:18,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:05:18,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:05:18,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:05:18,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:05:18,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:05:18,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:05:18,957 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_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2021-11-19 15:05:19,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:05:19,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:05:19,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:05:19,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:05:19,286 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:05:19,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2021-11-19 15:05:19,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/4abb8d1d0/020b66093ddb40678c637fe21b517aeb/FLAG2aa4ceb5c [2021-11-19 15:05:20,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:05:20,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2021-11-19 15:05:20,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/4abb8d1d0/020b66093ddb40678c637fe21b517aeb/FLAG2aa4ceb5c [2021-11-19 15:05:20,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/4abb8d1d0/020b66093ddb40678c637fe21b517aeb [2021-11-19 15:05:20,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:05:20,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:05:20,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:05:20,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:05:20,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:05:20,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:20" (1/1) ... [2021-11-19 15:05:20,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276af81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:20, skipping insertion in model container [2021-11-19 15:05:20,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:20" (1/1) ... [2021-11-19 15:05:20,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:05:20,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:05:22,905 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:05:22,907 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:05:22,912 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:05:22,914 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:05:23,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2021-11-19 15:05:23,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2021-11-19 15:05:23,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2021-11-19 15:05:23,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2021-11-19 15:05:23,934 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:05:23,965 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:05:23,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4be0cc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:23, skipping insertion in model container [2021-11-19 15:05:23,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:05:23,966 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:05:23,968 INFO L158 Benchmark]: Toolchain (without parser) took 3178.88ms. Allocated memory was 115.3MB in the beginning and 180.4MB in the end (delta: 65.0MB). Free memory was 71.9MB in the beginning and 114.9MB in the end (delta: -42.9MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2021-11-19 15:05:23,969 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:05:23,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3174.77ms. Allocated memory was 115.3MB in the beginning and 180.4MB in the end (delta: 65.0MB). Free memory was 71.6MB in the beginning and 114.9MB in the end (delta: -43.2MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2021-11-19 15:05:23,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3174.77ms. Allocated memory was 115.3MB in the beginning and 180.4MB in the end (delta: 65.0MB). Free memory was 71.6MB in the beginning and 114.9MB in the end (delta: -43.2MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6118]: 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_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:05:26,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:05:26,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:05:26,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:05:26,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:05:26,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:05:26,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:05:26,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:05:26,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:05:26,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:05:26,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:05:26,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:05:26,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:05:26,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:05:26,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:05:26,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:05:26,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:05:26,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:05:26,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:05:26,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:05:26,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:05:26,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:05:26,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:05:26,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:05:26,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:05:26,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:05:26,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:05:26,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:05:26,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:05:26,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:05:26,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:05:26,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:05:26,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:05:26,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:05:26,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:05:26,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:05:26,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:05:26,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:05:26,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:05:26,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:05:26,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:05:26,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:05:26,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:05:26,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:05:26,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:05:26,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:05:26,671 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:05:26,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:05:26,671 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:05:26,671 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:05:26,671 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:05:26,672 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:05:26,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:05:26,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:05:26,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:05:26,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:05:26,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:05:26,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:05:26,674 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:05:26,674 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:05:26,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:05:26,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:05:26,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:05:26,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:05:26,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:05:26,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:05:26,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:05:26,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:05:26,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:05:26,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:05:26,676 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:05:26,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:05:26,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:05:26,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:05:26,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:05:26,677 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_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2021-11-19 15:05:27,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:05:27,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:05:27,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:05:27,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:05:27,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:05:27,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2021-11-19 15:05:27,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/dfdc9b163/481b9d903eb046349c3a9ba8eaa44b07/FLAGefcc16632 [2021-11-19 15:05:28,363 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:05:28,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2021-11-19 15:05:28,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/dfdc9b163/481b9d903eb046349c3a9ba8eaa44b07/FLAGefcc16632 [2021-11-19 15:05:28,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/data/dfdc9b163/481b9d903eb046349c3a9ba8eaa44b07 [2021-11-19 15:05:28,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:05:28,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:05:28,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:05:28,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:05:28,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:05:28,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:28" (1/1) ... [2021-11-19 15:05:28,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53616f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:28, skipping insertion in model container [2021-11-19 15:05:28,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:28" (1/1) ... [2021-11-19 15:05:28,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:05:28,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:05:32,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2021-11-19 15:05:32,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2021-11-19 15:05:32,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2021-11-19 15:05:32,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2021-11-19 15:05:32,138 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:05:32,221 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:05:32,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:05:32,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2021-11-19 15:05:32,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2021-11-19 15:05:32,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2021-11-19 15:05:32,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2021-11-19 15:05:32,800 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:05:32,848 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:05:33,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2021-11-19 15:05:33,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2021-11-19 15:05:33,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2021-11-19 15:05:33,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2021-11-19 15:05:33,293 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:05:33,561 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:05:33,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33 WrapperNode [2021-11-19 15:05:33,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:05:33,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:05:33,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:05:33,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:05:33,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:33,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:33,939 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4904 [2021-11-19 15:05:33,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:05:33,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:05:33,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:05:33,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:05:33,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:33,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:33,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:33,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:34,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:34,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:34,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:34,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:05:34,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:05:34,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:05:34,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:05:34,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2021-11-19 15:05:34,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:05:34,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:05:34,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:05:34,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:05:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 15:05:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 15:05:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 15:05:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 15:05:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 15:05:34,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 15:05:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-11-19 15:05:34,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-11-19 15:05:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 15:05:34,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 15:05:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:05:34,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:05:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-11-19 15:05:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-11-19 15:05:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:05:34,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 15:05:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-19 15:05:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-19 15:05:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2021-11-19 15:05:34,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2021-11-19 15:05:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 15:05:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 15:05:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 15:05:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 15:05:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 15:05:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 15:05:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 15:05:34,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-19 15:05:34,395 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 15:05:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 15:05:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 15:05:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 15:05:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-11-19 15:05:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-11-19 15:05:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-19 15:05:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-19 15:05:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 15:05:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 15:05:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:05:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:05:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 15:05:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 15:05:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 15:05:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 15:05:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 15:05:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 15:05:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:05:34,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:05:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2021-11-19 15:05:34,403 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2021-11-19 15:05:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:05:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:05:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:05:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:05:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-11-19 15:05:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-11-19 15:05:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 15:05:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 15:05:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:05:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:05:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-19 15:05:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-19 15:05:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:05:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:05:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-11-19 15:05:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-11-19 15:05:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-19 15:05:34,409 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-19 15:05:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-11-19 15:05:34,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-11-19 15:05:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 15:05:34,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 15:05:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 15:05:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 15:05:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 15:05:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 15:05:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:05:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:05:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-11-19 15:05:34,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-11-19 15:05:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 15:05:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 15:05:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-19 15:05:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-19 15:05:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:05:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 15:05:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-11-19 15:05:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-11-19 15:05:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:05:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 15:05:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 15:05:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:05:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:05:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:05:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-19 15:05:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-19 15:05:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:05:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:05:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 15:05:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 15:05:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:05:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-19 15:05:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-19 15:05:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:05:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:05:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:05:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:05:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:05:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-19 15:05:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-19 15:05:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-11-19 15:05:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-11-19 15:05:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 15:05:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 15:05:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 15:05:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 15:05:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 15:05:34,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 15:05:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 15:05:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 15:05:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:05:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2021-11-19 15:05:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2021-11-19 15:05:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:05:34,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:05:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:05:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:05:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:05:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:05:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:05:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:05:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:05:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:05:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:05:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 15:05:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 15:05:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 15:05:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2021-11-19 15:05:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2021-11-19 15:05:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 15:05:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 15:05:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 15:05:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 15:05:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2021-11-19 15:05:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2021-11-19 15:05:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 15:05:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 15:05:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 15:05:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 15:05:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-19 15:05:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-19 15:05:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 15:05:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 15:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 15:05:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 15:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 15:05:34,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 15:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-11-19 15:05:34,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-11-19 15:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 15:05:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 15:05:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:05:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:05:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-19 15:05:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-19 15:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 15:05:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 15:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-19 15:05:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-19 15:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:05:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:05:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:05:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:05:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:05:34,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:05:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-19 15:05:34,452 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-19 15:05:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2021-11-19 15:05:34,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2021-11-19 15:05:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-19 15:05:34,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-19 15:05:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:05:34,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:05:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 15:05:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 15:05:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 15:05:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 15:05:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:05:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:05:35,572 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:05:35,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:05:38,180 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:06:23,677 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:06:23,736 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:06:23,758 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:06:23,758 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:06:23,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:23 BoogieIcfgContainer [2021-11-19 15:06:23,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:06:23,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:06:23,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:06:23,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:06:23,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:05:28" (1/3) ... [2021-11-19 15:06:23,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35650985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:06:23, skipping insertion in model container [2021-11-19 15:06:23,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (2/3) ... [2021-11-19 15:06:23,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35650985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:06:23, skipping insertion in model container [2021-11-19 15:06:23,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:23" (3/3) ... [2021-11-19 15:06:23,775 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2021-11-19 15:06:23,782 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:06:23,782 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 15:06:23,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:23,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:06:23,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 15:06:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2021-11-19 15:06:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 15:06:23,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:23,936 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:23,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:06:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:23,943 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2021-11-19 15:06:23,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:23,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176486265] [2021-11-19 15:06:23,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:23,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:23,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:23,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:06:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:25,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:06:25,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:06:25,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 15:06:26,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:26,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176486265] [2021-11-19 15:06:26,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176486265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:26,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:26,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:06:26,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789702130] [2021-11-19 15:06:26,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:26,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:06:26,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:26,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:06:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:26,411 INFO L87 Difference]: Start difference. First operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 15:06:28,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:34,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:34,170 INFO L93 Difference]: Finished difference Result 6586 states and 9437 transitions. [2021-11-19 15:06:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:34,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2021-11-19 15:06:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:34,269 INFO L225 Difference]: With dead ends: 6586 [2021-11-19 15:06:34,270 INFO L226 Difference]: Without dead ends: 4879 [2021-11-19 15:06:34,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:34,305 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 4575 mSDsluCounter, 5970 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 9159 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:34,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4575 Valid, 9159 Invalid, 886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 865 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-19 15:06:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2021-11-19 15:06:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4852. [2021-11-19 15:06:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4852 states, 3450 states have (on average 1.3) internal successors, (4485), 3515 states have internal predecessors, (4485), 1160 states have call successors, (1160), 240 states have call predecessors, (1160), 239 states have return successors, (1156), 1129 states have call predecessors, (1156), 1156 states have call successors, (1156) [2021-11-19 15:06:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 6801 transitions. [2021-11-19 15:06:34,911 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 6801 transitions. Word has length 116 [2021-11-19 15:06:34,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:34,914 INFO L470 AbstractCegarLoop]: Abstraction has 4852 states and 6801 transitions. [2021-11-19 15:06:34,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 15:06:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 6801 transitions. [2021-11-19 15:06:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 15:06:34,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:34,928 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:34,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:35,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:35,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:06:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:35,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2021-11-19 15:06:35,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:35,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173008286] [2021-11-19 15:06:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:35,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:35,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:35,151 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:35,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:06:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:36,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:06:36,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:06:37,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 15:06:37,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:37,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173008286] [2021-11-19 15:06:37,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173008286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:37,599 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:37,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:06:37,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343809397] [2021-11-19 15:06:37,599 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:37,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:06:37,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:37,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:06:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:37,603 INFO L87 Difference]: Start difference. First operand 4852 states and 6801 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 15:06:39,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:44,573 INFO L93 Difference]: Finished difference Result 19063 states and 26772 transitions. [2021-11-19 15:06:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:44,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 122 [2021-11-19 15:06:44,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:44,698 INFO L225 Difference]: With dead ends: 19063 [2021-11-19 15:06:44,698 INFO L226 Difference]: Without dead ends: 14232 [2021-11-19 15:06:44,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:44,729 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 4607 mSDsluCounter, 5922 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4607 SdHoareTripleChecker+Valid, 9099 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:44,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4607 Valid, 9099 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-19 15:06:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14232 states. [2021-11-19 15:06:45,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14232 to 14168. [2021-11-19 15:06:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14168 states, 10108 states have (on average 1.304016620498615) internal successors, (13181), 10317 states have internal predecessors, (13181), 3348 states have call successors, (3348), 716 states have call predecessors, (3348), 709 states have return successors, (3374), 3233 states have call predecessors, (3374), 3344 states have call successors, (3374) [2021-11-19 15:06:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14168 states to 14168 states and 19903 transitions. [2021-11-19 15:06:45,639 INFO L78 Accepts]: Start accepts. Automaton has 14168 states and 19903 transitions. Word has length 122 [2021-11-19 15:06:45,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:45,639 INFO L470 AbstractCegarLoop]: Abstraction has 14168 states and 19903 transitions. [2021-11-19 15:06:45,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 15:06:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 14168 states and 19903 transitions. [2021-11-19 15:06:45,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 15:06:45,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:45,650 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:45,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 15:06:45,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:45,851 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:06:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2021-11-19 15:06:45,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:45,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984266194] [2021-11-19 15:06:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:45,853 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:45,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:45,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:45,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:06:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:46,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:06:46,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:06:47,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 15:06:47,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:06:47,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984266194] [2021-11-19 15:06:47,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984266194] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:47,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:47,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:06:47,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254476082] [2021-11-19 15:06:47,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:47,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:06:47,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:06:47,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:06:47,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:47,656 INFO L87 Difference]: Start difference. First operand 14168 states and 19903 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 15:06:49,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:06:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:55,506 INFO L93 Difference]: Finished difference Result 52427 states and 73354 transitions. [2021-11-19 15:06:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 122 [2021-11-19 15:06:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:55,763 INFO L225 Difference]: With dead ends: 52427 [2021-11-19 15:06:55,764 INFO L226 Difference]: Without dead ends: 38280 [2021-11-19 15:06:55,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:06:55,858 INFO L933 BasicCegarLoop]: 3226 mSDtfsCounter, 5318 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 712 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:55,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5318 Valid, 6829 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 704 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-19 15:06:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38280 states. [2021-11-19 15:06:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38280 to 38192. [2021-11-19 15:06:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38192 states, 27208 states have (on average 1.2984048809173772) internal successors, (35327), 27807 states have internal predecessors, (35327), 8958 states have call successors, (8958), 2048 states have call predecessors, (8958), 2023 states have return successors, (9062), 8615 states have call predecessors, (9062), 8954 states have call successors, (9062) [2021-11-19 15:06:58,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38192 states to 38192 states and 53347 transitions. [2021-11-19 15:06:58,693 INFO L78 Accepts]: Start accepts. Automaton has 38192 states and 53347 transitions. Word has length 122 [2021-11-19 15:06:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:58,694 INFO L470 AbstractCegarLoop]: Abstraction has 38192 states and 53347 transitions. [2021-11-19 15:06:58,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-19 15:06:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand 38192 states and 53347 transitions. [2021-11-19 15:06:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 15:06:58,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:58,698 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:58,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:58,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:06:58,909 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:06:58,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:58,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2021-11-19 15:06:58,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:06:58,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902043780] [2021-11-19 15:06:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:58,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:06:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:06:58,913 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:06:58,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:06:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:59,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:06:59,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:07:00,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 15:07:00,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:00,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902043780] [2021-11-19 15:07:00,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902043780] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:00,859 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:00,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:07:00,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254948079] [2021-11-19 15:07:00,859 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:00,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:07:00,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:00,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:07:00,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:07:00,861 INFO L87 Difference]: Start difference. First operand 38192 states and 53347 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 15:07:02,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:08,693 INFO L93 Difference]: Finished difference Result 94953 states and 132156 transitions. [2021-11-19 15:07:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:07:08,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2021-11-19 15:07:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:09,002 INFO L225 Difference]: With dead ends: 94953 [2021-11-19 15:07:09,003 INFO L226 Difference]: Without dead ends: 56782 [2021-11-19 15:07:09,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:07:09,165 INFO L933 BasicCegarLoop]: 3306 mSDtfsCounter, 4818 mSDsluCounter, 3276 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 502 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4818 SdHoareTripleChecker+Valid, 6582 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:09,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4818 Valid, 6582 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 895 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-11-19 15:07:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56782 states. [2021-11-19 15:07:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56782 to 56698. [2021-11-19 15:07:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56698 states, 40982 states have (on average 1.303303889512469) internal successors, (53412), 41903 states have internal predecessors, (53412), 12451 states have call successors, (12451), 3313 states have call predecessors, (12451), 3262 states have return successors, (12519), 11909 states have call predecessors, (12519), 12447 states have call successors, (12519) [2021-11-19 15:07:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56698 states to 56698 states and 78382 transitions. [2021-11-19 15:07:12,346 INFO L78 Accepts]: Start accepts. Automaton has 56698 states and 78382 transitions. Word has length 126 [2021-11-19 15:07:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:12,348 INFO L470 AbstractCegarLoop]: Abstraction has 56698 states and 78382 transitions. [2021-11-19 15:07:12,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-19 15:07:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 56698 states and 78382 transitions. [2021-11-19 15:07:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 15:07:12,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:12,354 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:12,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 15:07:12,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:12,577 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)] === [2021-11-19 15:07:12,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:12,578 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2021-11-19 15:07:12,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:12,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868132372] [2021-11-19 15:07:12,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:12,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:12,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:12,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:12,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:07:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:13,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:07:13,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:07:13,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 15:07:14,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:14,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868132372] [2021-11-19 15:07:14,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868132372] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:14,252 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:14,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:07:14,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691663104] [2021-11-19 15:07:14,252 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:14,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:07:14,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:07:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:14,254 INFO L87 Difference]: Start difference. First operand 56698 states and 78382 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 15:07:16,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:19,563 INFO L93 Difference]: Finished difference Result 152742 states and 211282 transitions. [2021-11-19 15:07:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:07:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2021-11-19 15:07:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:20,122 INFO L225 Difference]: With dead ends: 152742 [2021-11-19 15:07:20,122 INFO L226 Difference]: Without dead ends: 96065 [2021-11-19 15:07:20,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:20,265 INFO L933 BasicCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:20,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2161 Valid, 5084 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 15:07:20,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96065 states. [2021-11-19 15:07:23,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96065 to 96011. [2021-11-19 15:07:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96011 states, 69151 states have (on average 1.3017599167040246) internal successors, (90018), 70660 states have internal predecessors, (90018), 21208 states have call successors, (21208), 5750 states have call predecessors, (21208), 5649 states have return successors, (21354), 20236 states have call predecessors, (21354), 21204 states have call successors, (21354) [2021-11-19 15:07:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132580 transitions. [2021-11-19 15:07:24,806 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132580 transitions. Word has length 128 [2021-11-19 15:07:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:24,807 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132580 transitions. [2021-11-19 15:07:24,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 15:07:24,807 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132580 transitions. [2021-11-19 15:07:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-19 15:07:24,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:24,810 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:24,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:25,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:07:25,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 15:07:25,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2021-11-19 15:07:25,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:07:25,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581705380] [2021-11-19 15:07:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:25,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:07:25,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:07:25,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:07:25,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e96ebb6-f2f0-4a4c-83be-a0db96f476ba/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:07:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:25,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:07:25,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 15:07:26,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-19 15:07:26,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:07:26,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581705380] [2021-11-19 15:07:26,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581705380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:26,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:26,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:07:26,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491462703] [2021-11-19 15:07:26,774 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:26,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:07:26,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:07:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:07:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:07:26,776 INFO L87 Difference]: Start difference. First operand 96011 states and 132580 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 15:07:28,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:07:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:43,142 INFO L93 Difference]: Finished difference Result 380145 states and 525169 transitions. [2021-11-19 15:07:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:07:43,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2021-11-19 15:07:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:44,680 INFO L225 Difference]: With dead ends: 380145 [2021-11-19 15:07:44,681 INFO L226 Difference]: Without dead ends: 284155 [2021-11-19 15:07:45,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:07:45,398 INFO L933 BasicCegarLoop]: 3566 mSDtfsCounter, 5908 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 731 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5908 SdHoareTripleChecker+Valid, 7446 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:45,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5908 Valid, 7446 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 837 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-19 15:07:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284155 states.