./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:23:46,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:23:46,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:23:46,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:23:46,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:23:46,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:23:46,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:23:46,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:23:46,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:23:46,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:23:46,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:23:46,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:23:46,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:23:46,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:23:46,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:23:46,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:23:46,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:23:46,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:23:46,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:23:46,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:23:46,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:23:46,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:23:46,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:23:46,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:23:46,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:23:46,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:23:46,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:23:46,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:23:46,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:23:46,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:23:46,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:23:46,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:23:46,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:23:46,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:23:46,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:23:46,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:23:46,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:23:46,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:23:46,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:23:46,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:23:46,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:23:46,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:23:46,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:23:46,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:23:46,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:23:46,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:23:46,899 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:23:46,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:23:46,899 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:23:46,900 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:23:46,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:23:46,901 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:23:46,901 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:23:46,901 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:23:46,902 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:23:46,902 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:23:46,902 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:23:46,903 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:23:46,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:23:46,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:23:46,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:23:46,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:23:46,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:23:46,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:23:46,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:23:46,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:23:46,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:23:46,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:23:46,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:23:46,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:23:46,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:23:46,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:23:46,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:23:46,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:23:46,910 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:23:46,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:23:46,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:23:46,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:23:46,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:23:46,911 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_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2021-11-19 14:23:47,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:23:47,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:23:47,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:23:47,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:23:47,282 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:23:47,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-19 14:23:47,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/8abdb9c96/256d028fd1b64e37badd475ce6a96a30/FLAG289857f96 [2021-11-19 14:23:48,789 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:23:48,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-19 14:23:48,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/8abdb9c96/256d028fd1b64e37badd475ce6a96a30/FLAG289857f96 [2021-11-19 14:23:49,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/8abdb9c96/256d028fd1b64e37badd475ce6a96a30 [2021-11-19 14:23:49,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:23:49,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:23:49,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:23:49,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:23:49,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:23:49,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:23:49" (1/1) ... [2021-11-19 14:23:49,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c413fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:23:49, skipping insertion in model container [2021-11-19 14:23:49,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:23:49" (1/1) ... [2021-11-19 14:23:49,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:23:49,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:23:55,213 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:55,411 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:55,593 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:55,593 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:56,034 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:56,045 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:23:58,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-19 14:23:58,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-19 14:23:58,834 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-19 14:23:58,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-19 14:23:58,896 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:23:59,014 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:23:59,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b323c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:23:59, skipping insertion in model container [2021-11-19 14:23:59,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:23:59,015 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:23:59,018 INFO L158 Benchmark]: Toolchain (without parser) took 9644.32ms. Allocated memory was 113.2MB in the beginning and 220.2MB in the end (delta: 107.0MB). Free memory was 68.9MB in the beginning and 124.7MB in the end (delta: -55.8MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2021-11-19 14:23:59,020 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:23:59,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 9635.75ms. Allocated memory was 113.2MB in the beginning and 220.2MB in the end (delta: 107.0MB). Free memory was 68.6MB in the beginning and 124.7MB in the end (delta: -56.1MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2021-11-19 14:23:59,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 70.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 9635.75ms. Allocated memory was 113.2MB in the beginning and 220.2MB in the end (delta: 107.0MB). Free memory was 68.6MB in the beginning and 124.7MB in the end (delta: -56.1MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7129]: 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_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:24:01,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:24:01,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:24:01,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:24:01,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:24:01,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:24:01,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:24:01,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:24:01,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:24:01,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:24:01,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:24:01,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:24:01,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:24:01,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:24:01,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:24:01,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:24:01,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:24:01,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:24:01,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:24:01,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:24:01,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:24:01,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:24:01,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:24:01,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:24:01,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:24:01,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:24:01,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:24:01,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:24:01,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:24:01,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:24:01,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:24:01,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:24:01,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:24:01,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:24:01,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:24:01,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:24:01,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:24:01,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:24:01,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:24:01,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:24:01,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:24:01,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:24:02,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:24:02,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:24:02,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:24:02,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:24:02,020 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:24:02,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:24:02,021 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:24:02,021 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:24:02,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:24:02,021 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:24:02,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:24:02,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:24:02,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:24:02,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:24:02,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:24:02,027 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:24:02,027 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:24:02,027 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:24:02,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:24:02,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:24:02,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:24:02,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:24:02,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:24:02,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:24:02,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:24:02,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:24:02,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:24:02,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:24:02,031 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:24:02,031 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:02,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:24:02,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:24:02,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:24:02,033 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_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2021-11-19 14:24:02,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:24:02,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:24:02,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:24:02,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:24:02,544 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:24:02,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-19 14:24:02,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/c770c5b2f/35a1aceaac20433592c77886aed80ceb/FLAGdbc78c834 [2021-11-19 14:24:04,152 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:24:04,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-19 14:24:04,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/c770c5b2f/35a1aceaac20433592c77886aed80ceb/FLAGdbc78c834 [2021-11-19 14:24:04,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/data/c770c5b2f/35a1aceaac20433592c77886aed80ceb [2021-11-19 14:24:04,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:24:04,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:24:04,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:24:04,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:24:04,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:24:04,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:04" (1/1) ... [2021-11-19 14:24:04,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:04, skipping insertion in model container [2021-11-19 14:24:04,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:04" (1/1) ... [2021-11-19 14:24:04,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:24:05,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:24:13,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-19 14:24:13,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-19 14:24:13,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-19 14:24:13,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-19 14:24:13,989 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:14,156 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:24:14,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:24:15,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-19 14:24:15,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-19 14:24:15,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-19 14:24:15,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-19 14:24:15,221 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:15,281 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:24:16,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2021-11-19 14:24:16,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2021-11-19 14:24:16,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2021-11-19 14:24:16,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2021-11-19 14:24:16,424 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:17,244 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:24:17,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17 WrapperNode [2021-11-19 14:24:17,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:24:17,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:24:17,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:24:17,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:24:17,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:17,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,143 INFO L137 Inliner]: procedures = 839, calls = 5679, calls flagged for inlining = 430, calls inlined = 371, statements flattened = 11100 [2021-11-19 14:24:18,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:24:18,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:24:18,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:24:18,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:24:18,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:24:18,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:24:18,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:24:18,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:24:18,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (1/1) ... [2021-11-19 14:24:18,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:24:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:24:18,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:24:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:24:18,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:24:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:24:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-19 14:24:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-19 14:24:18,860 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-19 14:24:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-19 14:24:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-19 14:24:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-19 14:24:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:24:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:24:18,861 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-19 14:24:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-19 14:24:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-19 14:24:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-19 14:24:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:24:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:24:18,862 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-19 14:24:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-19 14:24:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:24:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:24:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-19 14:24:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-19 14:24:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:24:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:24:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-19 14:24:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-19 14:24:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-19 14:24:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-19 14:24:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:24:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:24:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:24:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:24:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-19 14:24:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-19 14:24:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:24:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:24:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:24:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:24:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-19 14:24:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-19 14:24:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-19 14:24:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-19 14:24:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 14:24:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 14:24:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-19 14:24:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-19 14:24:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:24:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:24:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:24:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:24:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-19 14:24:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-19 14:24:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:24:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 14:24:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-19 14:24:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-19 14:24:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-19 14:24:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-19 14:24:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-19 14:24:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-19 14:24:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:24:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:24:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-19 14:24:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-19 14:24:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 14:24:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 14:24:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:24:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:24:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:24:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:24:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-19 14:24:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-19 14:24:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-19 14:24:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-19 14:24:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:24:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:24:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:24:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:24:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:24:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:24:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:24:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-19 14:24:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-19 14:24:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 14:24:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 14:24:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:24:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:24:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-19 14:24:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-19 14:24:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-19 14:24:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-19 14:24:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:24:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:24:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:24:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-19 14:24:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-19 14:24:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-19 14:24:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-19 14:24:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-19 14:24:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-19 14:24:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:24:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:24:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:24:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:24:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:24:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:24:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-19 14:24:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-19 14:24:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 14:24:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 14:24:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:24:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 14:24:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-19 14:24:18,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-19 14:24:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-19 14:24:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-19 14:24:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 14:24:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 14:24:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:24:18,878 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:24:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-19 14:24:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-19 14:24:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:24:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:24:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-19 14:24:18,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-19 14:24:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:24:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:24:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-19 14:24:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-19 14:24:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:24:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:24:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-19 14:24:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-19 14:24:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:24:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:24:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-19 14:24:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-19 14:24:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-19 14:24:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-19 14:24:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:24:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-19 14:24:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-19 14:24:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-19 14:24:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-19 14:24:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:24:18,882 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:24:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-19 14:24:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-19 14:24:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-19 14:24:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-19 14:24:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-19 14:24:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:24:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:24:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-19 14:24:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-19 14:24:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-19 14:24:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-19 14:24:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:24:18,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:24:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-19 14:24:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-19 14:24:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-19 14:24:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-19 14:24:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-19 14:24:18,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-19 14:24:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:24:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:24:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 14:24:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 14:24:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 14:24:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 14:24:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-19 14:24:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-19 14:24:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 14:24:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 14:24:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-19 14:24:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-19 14:24:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-19 14:24:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-19 14:24:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-19 14:24:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-19 14:24:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-19 14:24:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-19 14:24:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:24:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:24:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:24:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:24:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-19 14:24:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-19 14:24:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-19 14:24:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-19 14:24:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-19 14:24:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-19 14:24:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:24:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:24:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-19 14:24:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-19 14:24:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:24:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:24:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-19 14:24:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-19 14:24:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:24:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:24:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-19 14:24:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-19 14:24:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 14:24:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 14:24:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-19 14:24:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-19 14:24:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-19 14:24:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-19 14:24:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:24:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:24:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:24:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:24:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2021-11-19 14:24:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2021-11-19 14:24:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:24:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-19 14:24:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-19 14:24:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:24:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:24:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:24:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:24:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:24:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-19 14:24:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-19 14:24:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-19 14:24:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-19 14:24:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-19 14:24:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-19 14:24:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-19 14:24:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-19 14:24:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 14:24:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 14:24:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-19 14:24:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-19 14:24:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-19 14:24:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-19 14:24:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:24:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:24:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:24:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:24:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-19 14:24:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-19 14:24:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-19 14:24:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-19 14:24:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:24:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:24:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:24:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:24:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-19 14:24:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-19 14:24:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-19 14:24:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-19 14:24:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-19 14:24:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-19 14:24:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:24:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:24:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-19 14:24:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-19 14:24:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-19 14:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-19 14:24:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:24:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-19 14:24:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-19 14:24:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 14:24:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 14:24:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-19 14:24:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-19 14:24:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:24:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:24:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:24:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:24:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-19 14:24:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-19 14:24:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:24:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-19 14:24:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-19 14:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-19 14:24:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-19 14:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 14:24:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 14:24:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-19 14:24:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-19 14:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:24:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:24:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-19 14:24:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-19 14:24:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-19 14:24:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-19 14:24:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:24:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:24:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2021-11-19 14:24:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2021-11-19 14:24:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:24:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:24:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:24:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:24:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:24:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:24:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-19 14:24:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-19 14:24:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-19 14:24:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-19 14:24:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-19 14:24:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-19 14:24:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-19 14:24:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-19 14:24:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:24:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:24:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:24:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:24:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:24:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-19 14:24:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-19 14:24:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 14:24:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2021-11-19 14:24:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-19 14:24:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-19 14:24:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-19 14:24:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-19 14:24:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 14:24:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 14:24:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-19 14:24:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-19 14:24:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-19 14:24:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-19 14:24:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-19 14:24:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-19 14:24:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:24:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-19 14:24:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:24:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:24:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:24:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-19 14:24:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-19 14:24:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:24:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:24:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-19 14:24:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-19 14:24:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-19 14:24:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-19 14:24:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-19 14:24:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-19 14:24:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-19 14:24:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-19 14:24:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-19 14:24:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-19 14:24:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-19 14:24:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-19 14:24:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 14:24:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 14:24:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 14:24:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 14:24:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-19 14:24:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-19 14:24:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-19 14:24:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-19 14:24:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-19 14:24:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-19 14:24:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-19 14:24:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-19 14:24:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-19 14:24:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-19 14:24:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-19 14:24:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-19 14:24:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-19 14:24:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-19 14:24:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-19 14:24:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-19 14:24:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:24:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:24:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 14:24:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 14:24:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:24:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:24:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:24:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:24:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:24:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:24:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:24:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-19 14:24:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-19 14:24:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-19 14:24:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-19 14:24:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 14:24:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 14:24:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-19 14:24:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-19 14:24:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-19 14:24:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-19 14:24:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:24:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:24:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-19 14:24:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-19 14:24:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-19 14:24:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-19 14:24:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:24:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:24:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-19 14:24:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-19 14:24:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-19 14:24:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-19 14:24:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-19 14:24:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-19 14:24:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:24:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:24:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-19 14:24:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-19 14:24:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-19 14:24:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-19 14:24:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 14:24:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 14:24:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-19 14:24:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-19 14:24:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:24:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:24:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-19 14:24:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-19 14:24:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-19 14:24:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-19 14:24:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:24:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:24:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-19 14:24:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-19 14:24:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-19 14:24:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-19 14:24:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-19 14:24:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-19 14:24:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-19 14:24:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-19 14:24:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:24:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:24:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:24:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:24:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-19 14:24:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-19 14:24:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-19 14:24:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-19 14:24:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-19 14:24:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-19 14:24:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 14:24:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 14:24:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-19 14:24:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-19 14:24:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-19 14:24:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-19 14:24:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:24:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:24:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-19 14:24:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-19 14:24:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-19 14:24:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-19 14:24:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 14:24:20,887 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:24:20,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:24:21,174 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:25:42,102 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:25:42,295 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:25:42,356 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:25:42,356 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-19 14:25:42,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:25:42 BoogieIcfgContainer [2021-11-19 14:25:42,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:25:42,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:25:42,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:25:42,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:25:42,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:24:04" (1/3) ... [2021-11-19 14:25:42,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e268f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:25:42, skipping insertion in model container [2021-11-19 14:25:42,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:17" (2/3) ... [2021-11-19 14:25:42,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e268f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:25:42, skipping insertion in model container [2021-11-19 14:25:42,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:25:42" (3/3) ... [2021-11-19 14:25:42,384 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-19 14:25:42,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:25:42,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:25:42,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:25:42,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:25:42,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:25:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 4377 states, 2916 states have (on average 1.2908093278463648) internal successors, (3764), 2997 states have internal predecessors, (3764), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2021-11-19 14:25:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-19 14:25:42,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:42,711 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:25:42,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:25:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:42,719 INFO L85 PathProgramCache]: Analyzing trace with hash -881809036, now seen corresponding path program 1 times [2021-11-19 14:25:42,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:42,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460072157] [2021-11-19 14:25:42,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:42,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:42,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:42,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:25:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:52,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 4756 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:25:52,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-19 14:25:53,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-19 14:25:54,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:54,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460072157] [2021-11-19 14:25:54,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460072157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:25:54,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:25:54,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:25:54,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338417559] [2021-11-19 14:25:54,927 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:25:54,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:25:54,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:25:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:25:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:25:54,992 INFO L87 Difference]: Start difference. First operand has 4377 states, 2916 states have (on average 1.2908093278463648) internal successors, (3764), 2997 states have internal predecessors, (3764), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 14:25:56,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:26:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:25,339 INFO L93 Difference]: Finished difference Result 16898 states and 24529 transitions. [2021-11-19 14:26:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:26:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 382 [2021-11-19 14:26:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:25,528 INFO L225 Difference]: With dead ends: 16898 [2021-11-19 14:26:25,529 INFO L226 Difference]: Without dead ends: 12562 [2021-11-19 14:26:25,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:25,587 INFO L933 BasicCegarLoop]: 8487 mSDtfsCounter, 11926 mSDsluCounter, 15320 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11926 SdHoareTripleChecker+Valid, 23807 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:25,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11926 Valid, 23807 Invalid, 2538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 29.0s Time] [2021-11-19 14:26:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12562 states. [2021-11-19 14:26:26,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12562 to 12533. [2021-11-19 14:26:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12533 states, 8347 states have (on average 1.279262010303103) internal successors, (10678), 8586 states have internal predecessors, (10678), 3545 states have call successors, (3545), 639 states have call predecessors, (3545), 638 states have return successors, (3541), 3466 states have call predecessors, (3541), 3541 states have call successors, (3541) [2021-11-19 14:26:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12533 states to 12533 states and 17764 transitions. [2021-11-19 14:26:26,959 INFO L78 Accepts]: Start accepts. Automaton has 12533 states and 17764 transitions. Word has length 382 [2021-11-19 14:26:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:26,968 INFO L470 AbstractCegarLoop]: Abstraction has 12533 states and 17764 transitions. [2021-11-19 14:26:26,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-11-19 14:26:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 12533 states and 17764 transitions. [2021-11-19 14:26:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-11-19 14:26:27,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:27,002 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:27,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:27,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:27,227 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:26:27,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash 265039906, now seen corresponding path program 1 times [2021-11-19 14:26:27,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:27,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631236241] [2021-11-19 14:26:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:27,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:27,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:27,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:27,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:26:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:36,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 4910 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:26:36,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-19 14:26:38,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-19 14:26:39,811 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:39,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631236241] [2021-11-19 14:26:39,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631236241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:39,812 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:26:39,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:26:39,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773879482] [2021-11-19 14:26:39,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:39,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:26:39,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:39,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:26:39,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:26:39,818 INFO L87 Difference]: Start difference. First operand 12533 states and 17764 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:26:41,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:08,743 INFO L93 Difference]: Finished difference Result 39748 states and 56261 transitions. [2021-11-19 14:27:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:08,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 415 [2021-11-19 14:27:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:09,020 INFO L225 Difference]: With dead ends: 39748 [2021-11-19 14:27:09,021 INFO L226 Difference]: Without dead ends: 27284 [2021-11-19 14:27:09,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:09,125 INFO L933 BasicCegarLoop]: 8333 mSDtfsCounter, 11442 mSDsluCounter, 10130 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11442 SdHoareTripleChecker+Valid, 18463 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:09,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11442 Valid, 18463 Invalid, 2584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2021-11-19 14:27:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27284 states. [2021-11-19 14:27:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27284 to 27228. [2021-11-19 14:27:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27228 states, 18096 states have (on average 1.2766357206012378) internal successors, (23102), 18610 states have internal predecessors, (23102), 7686 states have call successors, (7686), 1446 states have call predecessors, (7686), 1443 states have return successors, (7682), 7502 states have call predecessors, (7682), 7682 states have call successors, (7682) [2021-11-19 14:27:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27228 states to 27228 states and 38470 transitions. [2021-11-19 14:27:11,356 INFO L78 Accepts]: Start accepts. Automaton has 27228 states and 38470 transitions. Word has length 415 [2021-11-19 14:27:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:11,360 INFO L470 AbstractCegarLoop]: Abstraction has 27228 states and 38470 transitions. [2021-11-19 14:27:11,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:27:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 27228 states and 38470 transitions. [2021-11-19 14:27:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-11-19 14:27:11,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:11,383 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:11,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:11,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:11,585 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:27:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:11,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1488171700, now seen corresponding path program 1 times [2021-11-19 14:27:11,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:11,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392751766] [2021-11-19 14:27:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:11,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:11,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:11,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:27:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:20,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 4911 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:20,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-19 14:27:21,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-19 14:27:23,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:23,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392751766] [2021-11-19 14:27:23,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392751766] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:23,117 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:23,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:23,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948914763] [2021-11-19 14:27:23,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:23,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:23,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:23,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:23,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:23,121 INFO L87 Difference]: Start difference. First operand 27228 states and 38470 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:27:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:57,559 INFO L93 Difference]: Finished difference Result 104947 states and 148389 transitions. [2021-11-19 14:27:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:57,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 416 [2021-11-19 14:27:57,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:58,133 INFO L225 Difference]: With dead ends: 104947 [2021-11-19 14:27:58,133 INFO L226 Difference]: Without dead ends: 77788 [2021-11-19 14:27:58,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 828 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:58,311 INFO L933 BasicCegarLoop]: 10158 mSDtfsCounter, 14093 mSDsluCounter, 9228 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 1883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14093 SdHoareTripleChecker+Valid, 19386 SdHoareTripleChecker+Invalid, 4493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1883 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:58,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14093 Valid, 19386 Invalid, 4493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1883 Valid, 2610 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2021-11-19 14:27:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77788 states. [2021-11-19 14:28:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77788 to 77704. [2021-11-19 14:28:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77704 states, 51454 states have (on average 1.2751583939052358) internal successors, (65612), 52930 states have internal predecessors, (65612), 22048 states have call successors, (22048), 4206 states have call predecessors, (22048), 4199 states have return successors, (22044), 21526 states have call predecessors, (22044), 22044 states have call successors, (22044) [2021-11-19 14:28:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77704 states to 77704 states and 109704 transitions. [2021-11-19 14:28:05,057 INFO L78 Accepts]: Start accepts. Automaton has 77704 states and 109704 transitions. Word has length 416 [2021-11-19 14:28:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:05,059 INFO L470 AbstractCegarLoop]: Abstraction has 77704 states and 109704 transitions. [2021-11-19 14:28:05,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:28:05,059 INFO L276 IsEmpty]: Start isEmpty. Operand 77704 states and 109704 transitions. [2021-11-19 14:28:05,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-19 14:28:05,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:05,084 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:05,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:05,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:05,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:05,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash -265364845, now seen corresponding path program 1 times [2021-11-19 14:28:05,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:05,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649759706] [2021-11-19 14:28:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:05,316 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:05,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:05,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:05,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:28:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:14,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 4862 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:14,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4464 trivial. 0 not checked. [2021-11-19 14:28:15,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4560 trivial. 0 not checked. [2021-11-19 14:28:17,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:17,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649759706] [2021-11-19 14:28:17,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649759706] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:17,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:17,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:28:17,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945851721] [2021-11-19 14:28:17,011 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:17,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:28:17,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:17,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:28:17,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:28:17,016 INFO L87 Difference]: Start difference. First operand 77704 states and 109704 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-19 14:28:18,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:24,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:24,670 INFO L93 Difference]: Finished difference Result 201322 states and 283119 transitions. [2021-11-19 14:28:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:24,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 418 [2021-11-19 14:28:24,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:25,763 INFO L225 Difference]: With dead ends: 201322 [2021-11-19 14:28:25,764 INFO L226 Difference]: Without dead ends: 123687 [2021-11-19 14:28:26,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 833 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:28:26,346 INFO L933 BasicCegarLoop]: 7111 mSDtfsCounter, 4549 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 13088 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:26,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4549 Valid, 13088 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 14:28:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123687 states. [2021-11-19 14:28:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123687 to 123643. [2021-11-19 14:28:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123643 states, 80470 states have (on average 1.2639492978749844) internal successors, (101710), 82846 states have internal predecessors, (101710), 35810 states have call successors, (35810), 7383 states have call predecessors, (35810), 7360 states have return successors, (35836), 34944 states have call predecessors, (35836), 35806 states have call successors, (35836) [2021-11-19 14:28:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123643 states to 123643 states and 173356 transitions. [2021-11-19 14:28:34,598 INFO L78 Accepts]: Start accepts. Automaton has 123643 states and 173356 transitions. Word has length 418 [2021-11-19 14:28:34,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:34,601 INFO L470 AbstractCegarLoop]: Abstraction has 123643 states and 173356 transitions. [2021-11-19 14:28:34,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-11-19 14:28:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 123643 states and 173356 transitions. [2021-11-19 14:28:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-11-19 14:28:34,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:34,619 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:35,254 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2021-11-19 14:28:35,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:35,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:35,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:28:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1842911201, now seen corresponding path program 1 times [2021-11-19 14:28:35,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:35,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899784420] [2021-11-19 14:28:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:35,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:35,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:35,302 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:35,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acab77a-3b65-424c-bb54-5da3709e8c86/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:28:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:44,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 4965 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:44,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4468 trivial. 0 not checked. [2021-11-19 14:28:46,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:48,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4564 trivial. 0 not checked. [2021-11-19 14:28:48,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:48,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899784420] [2021-11-19 14:28:48,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899784420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:48,053 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:48,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:28:48,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650310364] [2021-11-19 14:28:48,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:48,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:28:48,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:28:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:28:48,057 INFO L87 Difference]: Start difference. First operand 123643 states and 173356 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 14:28:49,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:58,503 INFO L93 Difference]: Finished difference Result 349582 states and 490151 transitions. [2021-11-19 14:28:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 443 [2021-11-19 14:28:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:59,819 INFO L225 Difference]: With dead ends: 349582 [2021-11-19 14:28:59,819 INFO L226 Difference]: Without dead ends: 226008 [2021-11-19 14:29:00,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:29:00,590 INFO L933 BasicCegarLoop]: 7763 mSDtfsCounter, 5877 mSDsluCounter, 6058 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5877 SdHoareTripleChecker+Valid, 13821 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:00,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5877 Valid, 13821 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 14:29:00,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226008 states.