./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:27:27,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:27:27,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:27:27,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:27:27,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:27:27,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:27:27,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:27:27,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:27:27,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:27:27,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:27:27,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:27:27,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:27:27,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:27:27,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:27:27,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:27:27,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:27:27,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:27:27,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:27:27,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:27:27,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:27:27,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:27:27,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:27:27,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:27:27,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:27:27,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:27:27,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:27:27,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:27:27,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:27:27,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:27:27,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:27:27,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:27:27,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:27:27,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:27:27,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:27:27,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:27:27,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:27:27,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:27:27,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:27:27,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:27:27,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:27:27,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:27:27,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:27:28,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:27:28,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:27:28,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:27:28,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:27:28,033 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:27:28,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:27:28,033 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:27:28,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:27:28,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:27:28,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:27:28,042 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:27:28,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:27:28,042 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:27:28,043 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:27:28,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:27:28,043 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:27:28,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:27:28,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:27:28,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:27:28,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:27:28,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:27:28,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:27:28,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:27:28,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:27:28,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:27:28,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:27:28,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:27:28,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:27:28,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:28,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:27:28,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:27:28,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:27:28,050 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:27:28,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:27:28,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:27:28,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:27:28,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:27:28,051 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_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2021-11-12 23:27:28,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:27:28,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:27:28,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:27:28,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:27:28,368 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:27:28,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-12 23:27:28,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/8f0aa8841/85fbdde5422e4b87bffb6472afbe50a1/FLAG5966f2787 [2021-11-12 23:27:29,614 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:27:29,614 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-12 23:27:29,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/8f0aa8841/85fbdde5422e4b87bffb6472afbe50a1/FLAG5966f2787 [2021-11-12 23:27:29,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/8f0aa8841/85fbdde5422e4b87bffb6472afbe50a1 [2021-11-12 23:27:29,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:27:29,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:27:29,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:29,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:27:29,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:27:29,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:29" (1/1) ... [2021-11-12 23:27:29,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b871a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:29, skipping insertion in model container [2021-11-12 23:27:29,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:29" (1/1) ... [2021-11-12 23:27:29,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:27:30,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:27:32,147 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:32,148 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:32,186 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:32,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:32,512 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:32,540 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:27:34,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-12 23:27:34,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-12 23:27:34,201 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-12 23:27:34,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-12 23:27:34,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:34,321 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:27:34,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6dfec9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:34, skipping insertion in model container [2021-11-12 23:27:34,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:34,324 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:27:34,326 INFO L158 Benchmark]: Toolchain (without parser) took 4416.98ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 66.1MB in the beginning and 83.7MB in the end (delta: -17.5MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-11-12 23:27:34,328 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:27:34,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4413.87ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 65.8MB in the beginning and 83.7MB in the end (delta: -17.8MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-11-12 23:27:34,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4413.87ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 65.8MB in the beginning and 83.7MB in the end (delta: -17.8MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6975]: 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_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:27:36,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:27:36,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:27:36,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:27:36,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:27:36,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:27:36,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:27:36,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:27:36,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:27:36,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:27:36,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:27:36,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:27:36,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:27:36,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:27:36,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:27:36,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:27:36,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:27:36,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:27:36,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:27:36,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:27:36,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:27:36,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:27:36,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:27:36,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:27:36,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:27:36,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:27:36,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:27:36,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:27:36,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:27:36,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:27:36,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:27:36,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:27:36,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:27:36,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:27:36,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:27:36,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:27:36,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:27:36,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:27:36,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:27:36,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:27:36,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:27:36,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:27:36,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:27:36,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:27:36,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:27:36,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:27:36,907 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:27:36,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:27:36,908 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:27:36,908 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:27:36,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:27:36,909 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:27:36,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:27:36,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:27:36,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:27:36,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:27:36,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:27:36,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:27:36,911 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:27:36,911 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:27:36,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:27:36,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:27:36,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:27:36,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:27:36,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:27:36,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:27:36,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:36,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:27:36,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:27:36,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:27:36,913 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:27:36,914 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:27:36,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:27:36,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:27:36,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:27:36,915 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_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2021-11-12 23:27:37,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:27:37,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:27:37,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:27:37,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:27:37,312 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:27:37,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-12 23:27:37,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/b9db39483/8b8aaea468384faeb6b3c6a10235234c/FLAG957b4eadd [2021-11-12 23:27:38,557 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:27:38,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-12 23:27:38,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/b9db39483/8b8aaea468384faeb6b3c6a10235234c/FLAG957b4eadd [2021-11-12 23:27:38,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/data/b9db39483/8b8aaea468384faeb6b3c6a10235234c [2021-11-12 23:27:38,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:27:38,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:27:38,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:38,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:27:38,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:27:38,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:38" (1/1) ... [2021-11-12 23:27:38,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757d6e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:38, skipping insertion in model container [2021-11-12 23:27:38,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:38" (1/1) ... [2021-11-12 23:27:38,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:27:39,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:27:43,122 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-12 23:27:43,126 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-12 23:27:43,126 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-12 23:27:43,133 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-12 23:27:43,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:43,237 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:27:43,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:27:43,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-12 23:27:43,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-12 23:27:43,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-12 23:27:43,669 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-12 23:27:43,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:43,703 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:27:44,224 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-12 23:27:44,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-12 23:27:44,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-12 23:27:44,225 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-12 23:27:44,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:44,812 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:27:44,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44 WrapperNode [2021-11-12 23:27:44,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:44,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:44,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:27:44,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:27:44,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:45,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:27:45,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:27:45,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:27:45,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:27:45,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:27:45,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:27:45,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:27:45,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (1/1) ... [2021-11-12 23:27:45,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:45,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:27:45,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:27:45,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:27:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-12 23:27:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-12 23:27:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_eeprom_len [2021-11-12 23:27:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_eeprom_len [2021-11-12 23:27:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 23:27:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 23:27:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_nway_reset [2021-11-12 23:27:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_nway_reset [2021-11-12 23:27:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:27:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:27:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 23:27:45,883 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 23:27:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 23:27:45,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 23:27:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:27:45,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:27:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-12 23:27:45,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-12 23:27:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:27:45,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 23:27:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-12 23:27:45,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-12 23:27:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 23:27:45,885 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 23:27:45,885 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-12 23:27:45,885 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-12 23:27:45,885 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-12 23:27:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-12 23:27:45,886 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_irq [2021-11-12 23:27:45,886 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_irq [2021-11-12 23:27:45,886 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-12 23:27:45,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-12 23:27:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-12 23:27:45,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-12 23:27:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_close [2021-11-12 23:27:45,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_close [2021-11-12 23:27:45,887 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_speed_and_duplex [2021-11-12 23:27:45,887 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_speed_and_duplex [2021-11-12 23:27:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_force_ps [2021-11-12 23:27:45,888 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_force_ps [2021-11-12 23:27:45,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 23:27:45,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 23:27:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:27:45,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:27:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 23:27:45,890 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 23:27:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-12 23:27:45,891 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-12 23:27:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 23:27:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 23:27:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:27:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:27:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:27:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-12 23:27:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-12 23:27:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-12 23:27:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-12 23:27:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:27:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:27:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:27:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 23:27:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 23:27:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_write_phy_reg [2021-11-12 23:27:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_write_phy_reg [2021-11-12 23:27:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-12 23:27:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-12 23:27:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_vlan_mode [2021-11-12 23:27:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_vlan_mode [2021-11-12 23:27:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 23:27:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 23:27:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_up [2021-11-12 23:27:45,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_up [2021-11-12 23:27:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 23:27:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 23:27:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:27:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:27:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_tx_timeout [2021-11-12 23:27:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_tx_timeout [2021-11-12 23:27:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_enable [2021-11-12 23:27:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_enable [2021-11-12 23:27:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 23:27:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 23:27:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_poll_controller [2021-11-12 23:27:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_poll_controller [2021-11-12 23:27:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:27:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:27:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_irq_disable [2021-11-12 23:27:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_irq_disable [2021-11-12 23:27:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:27:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:27:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2021-11-12 23:27:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_stats_lock_of_atl2_adapter [2021-11-12 23:27:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 23:27:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 23:27:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 23:27:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 23:27:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-12 23:27:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-12 23:27:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:27:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:27:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 23:27:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 23:27:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_shutdown [2021-11-12 23:27:45,952 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_shutdown [2021-11-12 23:27:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __atl2_vlan_mode [2021-11-12 23:27:45,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl2_vlan_mode [2021-11-12 23:27:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:27:45,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-12 23:27:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:27:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:27:45,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:27:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:27:45,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:27:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 23:27:45,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 23:27:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-12 23:27:45,953 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-12 23:27:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:27:45,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:27:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:27:45,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:27:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_set_multi [2021-11-12 23:27:45,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_set_multi [2021-11-12 23:27:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_phy_init [2021-11-12 23:27:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_phy_init [2021-11-12 23:27:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 23:27:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 23:27:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_configure [2021-11-12 23:27:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_configure [2021-11-12 23:27:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reset_hw [2021-11-12 23:27:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reset_hw [2021-11-12 23:27:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 23:27:45,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 23:27:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-12 23:27:45,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-12 23:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_open [2021-11-12 23:27:45,963 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_open [2021-11-12 23:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:27:45,963 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 23:27:45,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 23:27:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_validate_option [2021-11-12 23:27:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_validate_option [2021-11-12 23:27:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2021-11-12 23:27:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_atl2_adapter [2021-11-12 23:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-12 23:27:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-12 23:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:27:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:27:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_intr [2021-11-12 23:27:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_intr [2021-11-12 23:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-12 23:27:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-12 23:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:27:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:27:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:27:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:27:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:27:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:27:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:27:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 23:27:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 23:27:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 23:27:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-12 23:27:45,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 23:27:45,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 23:27:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_remove [2021-11-12 23:27:45,969 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_remove [2021-11-12 23:27:45,969 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_eeprom [2021-11-12 23:27:45,969 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_eeprom [2021-11-12 23:27:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-12 23:27:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-12 23:27:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 23:27:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 23:27:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:27:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:27:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_request_irq [2021-11-12 23:27:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_request_irq [2021-11-12 23:27:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 23:27:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 23:27:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_read_phy_reg [2021-11-12 23:27:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_read_phy_reg [2021-11-12 23:27:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-11-12 23:27:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-11-12 23:27:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:27:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 23:27:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 23:27:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-12 23:27:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-12 23:27:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 23:27:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 23:27:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:27:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-12 23:27:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-12 23:27:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:27:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:27:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:27:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:27:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_suspend [2021-11-12 23:27:45,974 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_suspend [2021-11-12 23:27:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:27:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_reinit_locked [2021-11-12 23:27:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_reinit_locked [2021-11-12 23:27:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 23:27:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 23:27:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:27:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:27:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-12 23:27:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-12 23:27:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_resume [2021-11-12 23:27:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_resume [2021-11-12 23:27:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 23:27:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 23:27:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 23:27:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 23:27:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2021-11-12 23:27:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2021-11-12 23:27:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 23:27:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 23:27:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:27:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:27:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:27:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:27:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:27:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:27:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:27:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:27:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_get_regs_len [2021-11-12 23:27:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_get_regs_len [2021-11-12 23:27:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_check_eeprom_exist [2021-11-12 23:27:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_check_eeprom_exist [2021-11-12 23:27:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-12 23:27:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-12 23:27:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_restore_vlan [2021-11-12 23:27:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_restore_vlan [2021-11-12 23:27:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 23:27:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 23:27:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2021-11-12 23:27:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2021-11-12 23:27:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring_ptrs [2021-11-12 23:27:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring_ptrs [2021-11-12 23:27:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-12 23:27:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-12 23:27:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-12 23:27:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-12 23:27:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_free_ring_resources [2021-11-12 23:27:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_free_ring_resources [2021-11-12 23:27:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:27:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:27:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_down [2021-11-12 23:27:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_down [2021-11-12 23:27:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-12 23:27:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-12 23:27:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-12 23:27:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-12 23:27:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 23:27:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 23:27:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:27:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:27:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure atl2_init_hw [2021-11-12 23:27:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atl2_init_hw [2021-11-12 23:27:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:27:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:27:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 23:27:47,292 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:28:30,469 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:28:35,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:28:35,536 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-12 23:28:35,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:28:35 BoogieIcfgContainer [2021-11-12 23:28:35,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:28:35,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:28:35,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:28:35,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:28:35,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:27:38" (1/3) ... [2021-11-12 23:28:35,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29db8ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:28:35, skipping insertion in model container [2021-11-12 23:28:35,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:44" (2/3) ... [2021-11-12 23:28:35,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29db8ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:28:35, skipping insertion in model container [2021-11-12 23:28:35,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:28:35" (3/3) ... [2021-11-12 23:28:35,549 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-12 23:28:35,555 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:28:35,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:28:35,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:28:35,628 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:28:35,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:28:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) [2021-11-12 23:28:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-12 23:28:35,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:35,718 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:35,718 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:28:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:35,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1128025312, now seen corresponding path program 1 times [2021-11-12 23:28:35,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:35,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098910563] [2021-11-12 23:28:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:35,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:35,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:35,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:35,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:28:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:38,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:28:38,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:28:38,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:28:39,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:39,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098910563] [2021-11-12 23:28:39,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098910563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:39,255 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:39,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:28:39,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575695470] [2021-11-12 23:28:39,259 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:39,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:28:39,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:39,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:28:39,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:28:39,324 INFO L87 Difference]: Start difference. First operand has 2335 states, 1589 states have (on average 1.2542479546884833) internal successors, (1993), 1611 states have internal predecessors, (1993), 624 states have call successors, (624), 120 states have call predecessors, (624), 119 states have return successors, (619), 617 states have call predecessors, (619), 619 states have call successors, (619) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:28:41,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:28:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:50,560 INFO L93 Difference]: Finished difference Result 9052 states and 12697 transitions. [2021-11-12 23:28:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:50,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 167 [2021-11-12 23:28:50,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:50,646 INFO L225 Difference]: With dead ends: 9052 [2021-11-12 23:28:50,646 INFO L226 Difference]: Without dead ends: 6728 [2021-11-12 23:28:50,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:28:50,679 INFO L933 BasicCegarLoop]: 4385 mSDtfsCounter, 6152 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9460.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.97ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10469.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:50,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6152 Valid, 10103 Invalid, 1221 Unknown, 0 Unchecked, 83.97ms Time], IncrementalHoareTripleChecker [7 Valid, 1213 Invalid, 1 Unknown, 0 Unchecked, 10469.34ms Time] [2021-11-12 23:28:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-11-12 23:28:51,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6699. [2021-11-12 23:28:51,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 4569 states have (on average 1.240534033705406) internal successors, (5668), 4630 states have internal predecessors, (5668), 1775 states have call successors, (1775), 353 states have call predecessors, (1775), 352 states have return successors, (1772), 1766 states have call predecessors, (1772), 1772 states have call successors, (1772) [2021-11-12 23:28:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9215 transitions. [2021-11-12 23:28:51,362 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9215 transitions. Word has length 167 [2021-11-12 23:28:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:51,368 INFO L470 AbstractCegarLoop]: Abstraction has 6699 states and 9215 transitions. [2021-11-12 23:28:51,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:28:51,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9215 transitions. [2021-11-12 23:28:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-12 23:28:51,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:51,387 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:51,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:51,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:51,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:28:51,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash 75480426, now seen corresponding path program 1 times [2021-11-12 23:28:51,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:51,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248895319] [2021-11-12 23:28:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:51,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:51,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:51,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:51,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:28:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:53,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:28:53,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:28:54,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:28:54,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:54,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248895319] [2021-11-12 23:28:54,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248895319] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:54,732 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:54,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:28:54,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604226974] [2021-11-12 23:28:54,733 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:54,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:28:54,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:28:54,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:28:54,736 INFO L87 Difference]: Start difference. First operand 6699 states and 9215 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:28:56,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:29:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:05,686 INFO L93 Difference]: Finished difference Result 26049 states and 35903 transitions. [2021-11-12 23:29:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 171 [2021-11-12 23:29:05,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:05,872 INFO L225 Difference]: With dead ends: 26049 [2021-11-12 23:29:05,872 INFO L226 Difference]: Without dead ends: 19381 [2021-11-12 23:29:05,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:29:05,917 INFO L933 BasicCegarLoop]: 4318 mSDtfsCounter, 6065 mSDsluCounter, 7069 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9090.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.23ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9829.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:05,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6065 Valid, 11387 Invalid, 1167 Unknown, 0 Unchecked, 52.23ms Time], IncrementalHoareTripleChecker [8 Valid, 1158 Invalid, 1 Unknown, 0 Unchecked, 9829.33ms Time] [2021-11-12 23:29:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19381 states. [2021-11-12 23:29:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19381 to 19301. [2021-11-12 23:29:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19301 states, 13249 states have (on average 1.246433693108914) internal successors, (16514), 13452 states have internal predecessors, (16514), 5031 states have call successors, (5031), 1049 states have call predecessors, (5031), 1018 states have return successors, (5076), 4940 states have call predecessors, (5076), 5028 states have call successors, (5076) [2021-11-12 23:29:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19301 states to 19301 states and 26621 transitions. [2021-11-12 23:29:07,413 INFO L78 Accepts]: Start accepts. Automaton has 19301 states and 26621 transitions. Word has length 171 [2021-11-12 23:29:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:07,413 INFO L470 AbstractCegarLoop]: Abstraction has 19301 states and 26621 transitions. [2021-11-12 23:29:07,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-12 23:29:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 19301 states and 26621 transitions. [2021-11-12 23:29:07,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-12 23:29:07,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:07,421 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:07,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:07,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:07,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:29:07,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1694760687, now seen corresponding path program 1 times [2021-11-12 23:29:07,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:07,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134489305] [2021-11-12 23:29:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:07,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:07,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:07,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:29:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:10,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:29:10,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:29:10,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:29:11,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:11,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134489305] [2021-11-12 23:29:11,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134489305] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:11,531 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:11,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:29:11,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310127856] [2021-11-12 23:29:11,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:11,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:29:11,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:29:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:29:11,535 INFO L87 Difference]: Start difference. First operand 19301 states and 26621 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-12 23:29:13,703 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 [] [2021-11-12 23:29:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:22,651 INFO L93 Difference]: Finished difference Result 76421 states and 105719 transitions. [2021-11-12 23:29:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:22,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 184 [2021-11-12 23:29:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:23,157 INFO L225 Difference]: With dead ends: 76421 [2021-11-12 23:29:23,157 INFO L226 Difference]: Without dead ends: 57151 [2021-11-12 23:29:23,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:29:23,280 INFO L933 BasicCegarLoop]: 4379 mSDtfsCounter, 6135 mSDsluCounter, 7332 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8548.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6135 SdHoareTripleChecker+Valid, 11711 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.35ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9299.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:23,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6135 Valid, 11711 Invalid, 1222 Unknown, 0 Unchecked, 47.35ms Time], IncrementalHoareTripleChecker [15 Valid, 1206 Invalid, 1 Unknown, 0 Unchecked, 9299.39ms Time] [2021-11-12 23:29:23,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57151 states. [2021-11-12 23:29:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57151 to 57047. [2021-11-12 23:29:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57047 states, 39169 states have (on average 1.247261865250581) internal successors, (48854), 39804 states have internal predecessors, (48854), 14877 states have call successors, (14877), 3119 states have call predecessors, (14877), 2998 states have return successors, (15240), 14528 states have call predecessors, (15240), 14874 states have call successors, (15240) [2021-11-12 23:29:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57047 states to 57047 states and 78971 transitions. [2021-11-12 23:29:27,850 INFO L78 Accepts]: Start accepts. Automaton has 57047 states and 78971 transitions. Word has length 184 [2021-11-12 23:29:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:27,851 INFO L470 AbstractCegarLoop]: Abstraction has 57047 states and 78971 transitions. [2021-11-12 23:29:27,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-12 23:29:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 57047 states and 78971 transitions. [2021-11-12 23:29:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-12 23:29:27,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:27,875 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:27,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:28,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:28,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:29:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2004995607, now seen corresponding path program 1 times [2021-11-12 23:29:28,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:28,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112037546] [2021-11-12 23:29:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:28,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:28,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:28,104 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:28,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:29:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:30,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:29:30,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2021-11-12 23:29:31,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:29:31,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:31,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112037546] [2021-11-12 23:29:31,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112037546] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:31,666 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:31,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:29:31,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112724200] [2021-11-12 23:29:31,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:31,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:29:31,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:31,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:29:31,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:29:31,668 INFO L87 Difference]: Start difference. First operand 57047 states and 78971 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:29:33,837 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 [] [2021-11-12 23:29:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:37,665 INFO L93 Difference]: Finished difference Result 153754 states and 211829 transitions. [2021-11-12 23:29:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:29:37,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 189 [2021-11-12 23:29:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:38,383 INFO L225 Difference]: With dead ends: 153754 [2021-11-12 23:29:38,383 INFO L226 Difference]: Without dead ends: 96738 [2021-11-12 23:29:38,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:29:38,562 INFO L933 BasicCegarLoop]: 3648 mSDtfsCounter, 2349 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2490.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.41ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2565.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:38,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2349 Valid, 6701 Invalid, 95 Unknown, 0 Unchecked, 14.41ms Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 2565.40ms Time] [2021-11-12 23:29:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96738 states. [2021-11-12 23:29:43,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96738 to 96674. [2021-11-12 23:29:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96674 states, 65779 states have (on average 1.2371273506742273) internal successors, (81377), 66906 states have internal predecessors, (81377), 25302 states have call successors, (25302), 5834 states have call predecessors, (25302), 5590 states have return successors, (26013), 24617 states have call predecessors, (26013), 25299 states have call successors, (26013) [2021-11-12 23:29:44,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96674 states to 96674 states and 132692 transitions. [2021-11-12 23:29:44,125 INFO L78 Accepts]: Start accepts. Automaton has 96674 states and 132692 transitions. Word has length 189 [2021-11-12 23:29:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:44,126 INFO L470 AbstractCegarLoop]: Abstraction has 96674 states and 132692 transitions. [2021-11-12 23:29:44,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-12 23:29:44,126 INFO L276 IsEmpty]: Start isEmpty. Operand 96674 states and 132692 transitions. [2021-11-12 23:29:44,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-12 23:29:44,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:44,136 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:44,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:44,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:44,358 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:29:44,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:44,358 INFO L85 PathProgramCache]: Analyzing trace with hash 387245130, now seen corresponding path program 1 times [2021-11-12 23:29:44,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:44,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109378292] [2021-11-12 23:29:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:44,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:44,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:44,364 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:44,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:29:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:46,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:46,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-12 23:29:48,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-12 23:29:49,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:49,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109378292] [2021-11-12 23:29:49,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109378292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:49,722 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:49,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:29:49,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698226794] [2021-11-12 23:29:49,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:49,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:29:49,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:49,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:29:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:29:49,725 INFO L87 Difference]: Start difference. First operand 96674 states and 132692 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:29:53,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:53,311 INFO L93 Difference]: Finished difference Result 98290 states and 134324 transitions. [2021-11-12 23:29:53,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:29:53,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 219 [2021-11-12 23:29:53,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:53,839 INFO L225 Difference]: With dead ends: 98290 [2021-11-12 23:29:53,839 INFO L226 Difference]: Without dead ends: 98288 [2021-11-12 23:29:53,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:29:53,893 INFO L933 BasicCegarLoop]: 3183 mSDtfsCounter, 3049 mSDsluCounter, 9565 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 12748 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.90ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:53,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3063 Valid, 12748 Invalid, 42 Unknown, 0 Unchecked, 40.90ms Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 179.10ms Time] [2021-11-12 23:29:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98288 states. [2021-11-12 23:29:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98288 to 98286. [2021-11-12 23:29:59,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98286 states, 66826 states have (on average 1.2356567802950946) internal successors, (82574), 68061 states have internal predecessors, (82574), 25518 states have call successors, (25518), 6183 states have call predecessors, (25518), 5939 states have return successors, (26229), 24833 states have call predecessors, (26229), 25515 states have call successors, (26229) [2021-11-12 23:29:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98286 states to 98286 states and 134321 transitions. [2021-11-12 23:29:59,897 INFO L78 Accepts]: Start accepts. Automaton has 98286 states and 134321 transitions. Word has length 219 [2021-11-12 23:29:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:59,899 INFO L470 AbstractCegarLoop]: Abstraction has 98286 states and 134321 transitions. [2021-11-12 23:29:59,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:29:59,900 INFO L276 IsEmpty]: Start isEmpty. Operand 98286 states and 134321 transitions. [2021-11-12 23:29:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-12 23:29:59,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:59,915 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:59,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:00,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:00,134 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:30:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1206012490, now seen corresponding path program 1 times [2021-11-12 23:30:00,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:00,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420766481] [2021-11-12 23:30:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:00,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:00,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:00,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:30:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:02,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:30:02,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-12 23:30:04,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2021-11-12 23:30:05,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:05,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420766481] [2021-11-12 23:30:05,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420766481] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:30:05,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:30:05,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-12 23:30:05,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876837125] [2021-11-12 23:30:05,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:05,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:30:05,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:30:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:30:05,665 INFO L87 Difference]: Start difference. First operand 98286 states and 134321 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 23:30:09,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:09,391 INFO L93 Difference]: Finished difference Result 98292 states and 134326 transitions. [2021-11-12 23:30:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:30:09,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2021-11-12 23:30:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:09,959 INFO L225 Difference]: With dead ends: 98292 [2021-11-12 23:30:09,959 INFO L226 Difference]: Without dead ends: 98290 [2021-11-12 23:30:09,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:30:10,000 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 3092 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 9464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.39ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.28ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:10,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3105 Valid, 9464 Invalid, 23 Unknown, 0 Unchecked, 21.39ms Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 141.28ms Time] [2021-11-12 23:30:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98290 states. [2021-11-12 23:30:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98290 to 98290. [2021-11-12 23:30:15,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98290 states, 66829 states have (on average 1.235646201499349) internal successors, (82577), 68064 states have internal predecessors, (82577), 25518 states have call successors, (25518), 6184 states have call predecessors, (25518), 5940 states have return successors, (26229), 24833 states have call predecessors, (26229), 25515 states have call successors, (26229) [2021-11-12 23:30:15,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98290 states to 98290 states and 134324 transitions. [2021-11-12 23:30:15,672 INFO L78 Accepts]: Start accepts. Automaton has 98290 states and 134324 transitions. Word has length 224 [2021-11-12 23:30:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:15,673 INFO L470 AbstractCegarLoop]: Abstraction has 98290 states and 134324 transitions. [2021-11-12 23:30:15,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-12 23:30:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 98290 states and 134324 transitions. [2021-11-12 23:30:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-12 23:30:15,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:15,682 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:15,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:15,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:15,908 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-12 23:30:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1923579839, now seen corresponding path program 1 times [2021-11-12 23:30:15,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:15,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505136858] [2021-11-12 23:30:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:15,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:15,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:15,912 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:15,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a61557d-29de-4bb3-a4bd-60de2f23079c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:30:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:18,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:30:18,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-12 23:30:18,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2021-11-12 23:30:19,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:19,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505136858] [2021-11-12 23:30:19,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505136858] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:19,756 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:19,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:30:19,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718243317] [2021-11-12 23:30:19,757 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:19,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:30:19,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:19,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:30:19,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:30:19,759 INFO L87 Difference]: Start difference. First operand 98290 states and 134324 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-12 23:30:22,022 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 []