./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:31,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:31,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:31,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:31,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:31,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:31,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:31,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:31,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:31,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:31,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:31,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:31,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:31,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:31,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:31,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:31,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:31,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:31,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:31,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:31,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:31,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:31,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:31,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:31,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:31,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:31,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:31,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:31,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:31,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:31,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:31,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:31,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:31,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:31,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:31,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:31,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:31,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:31,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:31,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:31,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:31,981 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:39:32,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:32,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:32,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:32,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:32,013 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:32,013 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:32,014 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:32,014 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:39:32,014 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:32,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:32,015 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:39:32,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:39:32,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:32,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:39:32,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:39:32,017 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:39:32,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:32,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:39:32,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:32,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:32,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:32,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:32,021 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:32,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:32,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:32,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:32,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:32,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:32,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:32,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:32,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:32,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:32,024 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:39:32,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:39:32,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:32,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:32,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:32,025 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2021-11-19 14:39:32,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:32,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:32,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:32,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:32,341 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:32,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-19 14:39:32,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/6a7ad171a/b38f819efb954fae8f893ab77fa2190b/FLAGa3e827a28 [2021-11-19 14:39:33,669 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:33,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-19 14:39:33,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/6a7ad171a/b38f819efb954fae8f893ab77fa2190b/FLAGa3e827a28 [2021-11-19 14:39:33,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/6a7ad171a/b38f819efb954fae8f893ab77fa2190b [2021-11-19 14:39:33,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:33,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:33,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:33,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:33,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:33,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:33" (1/1) ... [2021-11-19 14:39:33,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640d845d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:33, skipping insertion in model container [2021-11-19 14:39:33,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:33" (1/1) ... [2021-11-19 14:39:33,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:34,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:36,121 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 14:39:36,133 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 14:39:36,142 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 14:39:36,149 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 14:39:36,206 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 14:39:36,218 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 14:39:36,229 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 14:39:36,244 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 14:39:36,252 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 14:39:36,265 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 14:39:36,273 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 14:39:36,281 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 14:39:37,134 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 14:39:38,001 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-19 14:39:38,005 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-19 14:39:38,006 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-19 14:39:38,006 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-19 14:39:38,021 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:38,063 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 14:39:38,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66fd4d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:38, skipping insertion in model container [2021-11-19 14:39:38,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:38,065 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:39:38,067 INFO L158 Benchmark]: Toolchain (without parser) took 4154.77ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 95.9MB in the beginning and 115.8MB in the end (delta: -19.9MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2021-11-19 14:39:38,068 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:39:38,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4149.90ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 95.2MB in the beginning and 115.8MB in the end (delta: -20.5MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2021-11-19 14:39:38,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4149.90ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 95.2MB in the beginning and 115.8MB in the end (delta: -20.5MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5655]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:39:40,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:39:40,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:39:40,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:39:40,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:39:40,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:39:40,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:39:40,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:39:40,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:39:40,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:39:40,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:39:40,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:39:40,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:39:40,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:39:40,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:39:40,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:39:40,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:39:40,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:39:40,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:39:40,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:39:40,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:39:40,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:39:40,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:39:40,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:39:40,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:39:40,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:39:40,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:39:40,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:39:40,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:39:40,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:39:40,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:39:40,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:39:40,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:39:40,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:39:40,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:39:40,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:39:40,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:39:40,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:39:40,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:39:40,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:39:40,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:39:40,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:39:40,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:39:40,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:39:40,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:39:40,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:39:40,771 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:39:40,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:39:40,771 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:39:40,771 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:39:40,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:39:40,772 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:39:40,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:39:40,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:39:40,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:39:40,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:39:40,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:39:40,774 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:39:40,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:39:40,774 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:39:40,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:39:40,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:39:40,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:39:40,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:39:40,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:39:40,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:39:40,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:40,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:39:40,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:39:40,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:39:40,777 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:39:40,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:39:40,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:39:40,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:39:40,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:39:40,778 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2021-11-19 14:39:41,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:39:41,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:39:41,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:39:41,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:39:41,284 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:39:41,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-19 14:39:41,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/736d20adc/35336708951944e4926e53657623f939/FLAG824f01e20 [2021-11-19 14:39:42,557 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:39:42,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-19 14:39:42,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/736d20adc/35336708951944e4926e53657623f939/FLAG824f01e20 [2021-11-19 14:39:42,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/data/736d20adc/35336708951944e4926e53657623f939 [2021-11-19 14:39:42,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:39:42,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:39:42,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:42,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:39:42,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:39:42,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:42" (1/1) ... [2021-11-19 14:39:42,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e547e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:42, skipping insertion in model container [2021-11-19 14:39:42,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:39:42" (1/1) ... [2021-11-19 14:39:42,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:39:43,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:47,045 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-19 14:39:47,049 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-19 14:39:47,050 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-19 14:39:47,059 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-19 14:39:47,089 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:47,149 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:39:47,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:39:47,777 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-19 14:39:47,778 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-19 14:39:47,779 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-19 14:39:47,780 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-19 14:39:47,788 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:47,864 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:39:48,523 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2021-11-19 14:39:48,524 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2021-11-19 14:39:48,524 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2021-11-19 14:39:48,525 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_e387d2e9-de0a-4f04-9ce1-38e6807b5456/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2021-11-19 14:39:48,530 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:39:48,846 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:39:48,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48 WrapperNode [2021-11-19 14:39:48,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:39:48,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:48,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:39:48,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:39:48,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,276 INFO L137 Inliner]: procedures = 465, calls = 2315, calls flagged for inlining = 231, calls inlined = 218, statements flattened = 6190 [2021-11-19 14:39:49,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:39:49,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:39:49,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:39:49,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:39:49,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:39:49,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:39:49,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:39:49,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:39:49,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (1/1) ... [2021-11-19 14:39:49,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:39:49,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:39:49,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:39:49,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:39:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2021-11-19 14:39:49,869 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2021-11-19 14:39:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 14:39:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2021-11-19 14:39:49,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2021-11-19 14:39:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:39:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:39:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:39:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:39:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:39:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:39:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:39:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:39:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-11-19 14:39:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-11-19 14:39:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-19 14:39:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-19 14:39:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:39:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:39:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-19 14:39:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-19 14:39:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:39:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:39:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:39:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:39:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-11-19 14:39:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-11-19 14:39:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:39:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2021-11-19 14:39:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2021-11-19 14:39:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:39:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:39:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:39:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:39:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2021-11-19 14:39:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2021-11-19 14:39:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:39:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:39:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-19 14:39:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-19 14:39:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:39:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 14:39:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 14:39:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:39:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:39:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:39:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2021-11-19 14:39:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2021-11-19 14:39:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:39:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:39:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 14:39:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 14:39:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:39:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:39:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:39:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:39:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2021-11-19 14:39:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2021-11-19 14:39:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:39:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:39:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2021-11-19 14:39:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2021-11-19 14:39:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:39:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:39:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:39:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:39:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:39:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:39:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:39:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 14:39:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 14:39:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2021-11-19 14:39:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2021-11-19 14:39:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:39:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:39:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:39:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:39:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:39:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:39:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:39:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-19 14:39:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-19 14:39:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:39:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:39:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:39:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2021-11-19 14:39:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2021-11-19 14:39:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2021-11-19 14:39:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2021-11-19 14:39:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2021-11-19 14:39:49,892 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2021-11-19 14:39:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-19 14:39:49,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-19 14:39:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2021-11-19 14:39:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2021-11-19 14:39:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-19 14:39:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-19 14:39:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2021-11-19 14:39:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2021-11-19 14:39:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-19 14:39:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-19 14:39:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2021-11-19 14:39:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2021-11-19 14:39:49,896 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2021-11-19 14:39:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2021-11-19 14:39:49,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:39:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-11-19 14:39:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-11-19 14:39:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:39:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:39:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:39:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2021-11-19 14:39:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2021-11-19 14:39:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:39:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:39:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:39:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:39:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:39:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2021-11-19 14:39:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2021-11-19 14:39:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:39:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:39:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2021-11-19 14:39:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2021-11-19 14:39:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-19 14:39:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-19 14:39:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:39:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:39:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:39:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:39:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-19 14:39:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-19 14:39:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:39:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:39:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:39:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:39:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2021-11-19 14:39:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2021-11-19 14:39:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:39:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:39:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2021-11-19 14:39:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2021-11-19 14:39:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:39:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:39:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:39:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:39:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-19 14:39:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-19 14:39:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:39:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:39:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:39:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:39:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:39:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:39:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:39:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:39:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:39:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-19 14:39:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-19 14:39:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:39:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:39:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2021-11-19 14:39:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2021-11-19 14:39:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:39:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:39:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-19 14:39:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-19 14:39:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:39:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:39:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:39:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:39:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2021-11-19 14:39:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2021-11-19 14:39:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:39:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:39:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:39:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:39:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:39:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:39:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2021-11-19 14:39:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2021-11-19 14:39:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2021-11-19 14:39:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2021-11-19 14:39:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-19 14:39:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-19 14:39:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2021-11-19 14:39:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2021-11-19 14:39:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:39:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:39:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2021-11-19 14:39:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2021-11-19 14:39:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2021-11-19 14:39:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2021-11-19 14:39:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2021-11-19 14:39:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2021-11-19 14:39:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2021-11-19 14:39:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2021-11-19 14:39:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:39:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:39:51,078 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:39:51,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:40:00,933 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:40:32,690 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:40:32,759 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:40:32,782 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:40:32,783 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:40:32,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:32 BoogieIcfgContainer [2021-11-19 14:40:32,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:40:32,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:40:32,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:40:32,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:40:32,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:39:42" (1/3) ... [2021-11-19 14:40:32,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308428eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:32, skipping insertion in model container [2021-11-19 14:40:32,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:39:48" (2/3) ... [2021-11-19 14:40:32,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308428eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:32, skipping insertion in model container [2021-11-19 14:40:32,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:32" (3/3) ... [2021-11-19 14:40:32,799 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2021-11-19 14:40:32,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:40:32,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:40:32,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:40:32,885 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 14:40:32,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:40:32,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) [2021-11-19 14:40:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-19 14:40:32,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:32,997 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:32,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash 820136742, now seen corresponding path program 1 times [2021-11-19 14:40:33,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:33,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278910572] [2021-11-19 14:40:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:33,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:33,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:33,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:33,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:40:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:35,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:35,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-19 14:40:36,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-19 14:40:38,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:38,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278910572] [2021-11-19 14:40:38,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278910572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:38,114 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:38,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:38,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416261802] [2021-11-19 14:40:38,117 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:38,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:38,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:38,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:38,183 INFO L87 Difference]: Start difference. First operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:40:40,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:40:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:52,651 INFO L93 Difference]: Finished difference Result 8096 states and 11895 transitions. [2021-11-19 14:40:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:40:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 457 [2021-11-19 14:40:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:52,737 INFO L225 Difference]: With dead ends: 8096 [2021-11-19 14:40:52,737 INFO L226 Difference]: Without dead ends: 5980 [2021-11-19 14:40:52,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 912 GetRequests, 910 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 14:40:52,765 INFO L933 BasicCegarLoop]: 4126 mSDtfsCounter, 7455 mSDsluCounter, 4777 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 959 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7455 SdHoareTripleChecker+Valid, 8903 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 959 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:52,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7455 Valid, 8903 Invalid, 2100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [959 Valid, 1140 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2021-11-19 14:40:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-11-19 14:40:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 5928. [2021-11-19 14:40:53,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 4229 states have (on average 1.3057460392527784) internal successors, (5522), 4269 states have internal predecessors, (5522), 1459 states have call successors, (1459), 238 states have call predecessors, (1459), 237 states have return successors, (1545), 1447 states have call predecessors, (1545), 1455 states have call successors, (1545) [2021-11-19 14:40:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8526 transitions. [2021-11-19 14:40:53,239 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8526 transitions. Word has length 457 [2021-11-19 14:40:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:53,242 INFO L470 AbstractCegarLoop]: Abstraction has 5928 states and 8526 transitions. [2021-11-19 14:40:53,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:40:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8526 transitions. [2021-11-19 14:40:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-19 14:40:53,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:53,254 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:53,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:53,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:53,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:53,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash -113970776, now seen corresponding path program 1 times [2021-11-19 14:40:53,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:53,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494184895] [2021-11-19 14:40:53,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:53,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:53,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:53,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:53,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:40:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:55,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1926 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:40:55,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-19 14:40:56,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-19 14:40:57,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:57,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494184895] [2021-11-19 14:40:57,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494184895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:57,357 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:57,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:40:57,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023266475] [2021-11-19 14:40:57,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:57,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:40:57,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:40:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:40:57,374 INFO L87 Difference]: Start difference. First operand 5928 states and 8526 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:40:59,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:41:08,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:08,479 INFO L93 Difference]: Finished difference Result 23001 states and 33149 transitions. [2021-11-19 14:41:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 457 [2021-11-19 14:41:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:08,636 INFO L225 Difference]: With dead ends: 23001 [2021-11-19 14:41:08,636 INFO L226 Difference]: Without dead ends: 17156 [2021-11-19 14:41:08,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 912 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:08,672 INFO L933 BasicCegarLoop]: 4054 mSDtfsCounter, 5734 mSDsluCounter, 5765 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5734 SdHoareTripleChecker+Valid, 9819 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:08,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5734 Valid, 9819 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1034 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2021-11-19 14:41:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17156 states. [2021-11-19 14:41:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17156 to 17130. [2021-11-19 14:41:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17130 states, 12257 states have (on average 1.3126376764297951) internal successors, (16089), 12355 states have internal predecessors, (16089), 4167 states have call successors, (4167), 704 states have call predecessors, (4167), 703 states have return successors, (4433), 4151 states have call predecessors, (4433), 4163 states have call successors, (4433) [2021-11-19 14:41:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17130 states to 17130 states and 24689 transitions. [2021-11-19 14:41:09,818 INFO L78 Accepts]: Start accepts. Automaton has 17130 states and 24689 transitions. Word has length 457 [2021-11-19 14:41:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:09,821 INFO L470 AbstractCegarLoop]: Abstraction has 17130 states and 24689 transitions. [2021-11-19 14:41:09,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-11-19 14:41:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 17130 states and 24689 transitions. [2021-11-19 14:41:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-11-19 14:41:09,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:09,838 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:09,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:10,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:10,056 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 14:41:10,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:10,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1620499840, now seen corresponding path program 1 times [2021-11-19 14:41:10,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:10,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054684303] [2021-11-19 14:41:10,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:10,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:10,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:10,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:10,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:41:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:11,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:11,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-19 14:41:12,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-19 14:41:13,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:13,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054684303] [2021-11-19 14:41:13,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054684303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:13,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:13,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:41:13,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998614820] [2021-11-19 14:41:13,560 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:13,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:41:13,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:13,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:41:13,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:41:13,562 INFO L87 Difference]: Start difference. First operand 17130 states and 24689 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:41:15,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:41:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:16,878 INFO L93 Difference]: Finished difference Result 50171 states and 73076 transitions. [2021-11-19 14:41:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:41:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 466 [2021-11-19 14:41:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:17,107 INFO L225 Difference]: With dead ends: 50171 [2021-11-19 14:41:17,107 INFO L226 Difference]: Without dead ends: 33124 [2021-11-19 14:41:17,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:41:17,203 INFO L933 BasicCegarLoop]: 3589 mSDtfsCounter, 2799 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:17,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2799 Valid, 6648 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:41:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33124 states. [2021-11-19 14:41:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33124 to 33081. [2021-11-19 14:41:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33081 states, 23618 states have (on average 1.3122618341942587) internal successors, (30993), 23830 states have internal predecessors, (30993), 8073 states have call successors, (8073), 1397 states have call predecessors, (8073), 1387 states have return successors, (9347), 8006 states have call predecessors, (9347), 8069 states have call successors, (9347) [2021-11-19 14:41:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33081 states to 33081 states and 48413 transitions. [2021-11-19 14:41:19,413 INFO L78 Accepts]: Start accepts. Automaton has 33081 states and 48413 transitions. Word has length 466 [2021-11-19 14:41:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:19,414 INFO L470 AbstractCegarLoop]: Abstraction has 33081 states and 48413 transitions. [2021-11-19 14:41:19,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:41:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33081 states and 48413 transitions. [2021-11-19 14:41:19,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2021-11-19 14:41:19,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:19,432 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:19,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:19,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:19,649 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 14:41:19,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:19,649 INFO L85 PathProgramCache]: Analyzing trace with hash -78835710, now seen corresponding path program 1 times [2021-11-19 14:41:19,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:19,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088098272] [2021-11-19 14:41:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:19,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:19,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:19,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:41:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:21,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:21,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-19 14:41:22,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-19 14:41:23,583 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:23,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088098272] [2021-11-19 14:41:23,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088098272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:23,583 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:23,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:23,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409580094] [2021-11-19 14:41:23,584 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:23,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:23,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:23,587 INFO L87 Difference]: Start difference. First operand 33081 states and 48413 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:41:25,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:41:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:34,923 INFO L93 Difference]: Finished difference Result 108497 states and 158705 transitions. [2021-11-19 14:41:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:41:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 484 [2021-11-19 14:41:34,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:35,481 INFO L225 Difference]: With dead ends: 108497 [2021-11-19 14:41:35,481 INFO L226 Difference]: Without dead ends: 75499 [2021-11-19 14:41:35,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 966 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:35,624 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 5751 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5751 SdHoareTripleChecker+Valid, 9589 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:35,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5751 Valid, 9589 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-19 14:41:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75499 states. [2021-11-19 14:41:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75499 to 75429. [2021-11-19 14:41:39,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75429 states, 53936 states have (on average 1.3103493028774844) internal successors, (70675), 54452 states have internal predecessors, (70675), 18281 states have call successors, (18281), 3243 states have call predecessors, (18281), 3209 states have return successors, (21144), 18090 states have call predecessors, (21144), 18277 states have call successors, (21144) [2021-11-19 14:41:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75429 states to 75429 states and 110100 transitions. [2021-11-19 14:41:40,562 INFO L78 Accepts]: Start accepts. Automaton has 75429 states and 110100 transitions. Word has length 484 [2021-11-19 14:41:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:40,565 INFO L470 AbstractCegarLoop]: Abstraction has 75429 states and 110100 transitions. [2021-11-19 14:41:40,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2021-11-19 14:41:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 75429 states and 110100 transitions. [2021-11-19 14:41:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-19 14:41:40,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:40,592 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:41:40,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:40,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:40,806 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 14:41:40,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1698188113, now seen corresponding path program 1 times [2021-11-19 14:41:40,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:40,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800537614] [2021-11-19 14:41:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:40,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:40,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:40,809 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:40,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:41:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:42,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:41:42,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2021-11-19 14:41:43,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2021-11-19 14:41:44,872 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:44,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800537614] [2021-11-19 14:41:44,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800537614] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:41:44,873 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:41:44,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:41:44,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000495815] [2021-11-19 14:41:44,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:44,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:41:44,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:41:44,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:41:44,876 INFO L87 Difference]: Start difference. First operand 75429 states and 110100 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 14:41:47,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:42:01,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:01,417 INFO L93 Difference]: Finished difference Result 243766 states and 353460 transitions. [2021-11-19 14:42:01,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:42:01,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 486 [2021-11-19 14:42:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:02,639 INFO L225 Difference]: With dead ends: 243766 [2021-11-19 14:42:02,639 INFO L226 Difference]: Without dead ends: 168420 [2021-11-19 14:42:02,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 968 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:42:02,866 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 5655 mSDsluCounter, 5377 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 10146 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:02,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 10146 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1244 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-19 14:42:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168420 states. [2021-11-19 14:42:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168420 to 168322. [2021-11-19 14:42:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168322 states, 119354 states have (on average 1.3069775625450342) internal successors, (155993), 120612 states have internal predecessors, (155993), 41466 states have call successors, (41466), 7584 states have call predecessors, (41466), 7499 states have return successors, (44800), 40941 states have call predecessors, (44800), 41462 states have call successors, (44800) [2021-11-19 14:42:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168322 states to 168322 states and 242259 transitions. [2021-11-19 14:42:11,024 INFO L78 Accepts]: Start accepts. Automaton has 168322 states and 242259 transitions. Word has length 486 [2021-11-19 14:42:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:11,025 INFO L470 AbstractCegarLoop]: Abstraction has 168322 states and 242259 transitions. [2021-11-19 14:42:11,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 14:42:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 168322 states and 242259 transitions. [2021-11-19 14:42:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-11-19 14:42:11,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:11,034 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:42:11,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:11,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:11,235 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:42:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash -600721175, now seen corresponding path program 1 times [2021-11-19 14:42:11,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:11,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668240971] [2021-11-19 14:42:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:11,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:11,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:11,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e387d2e9-de0a-4f04-9ce1-38e6807b5456/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:42:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:12,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:12,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2021-11-19 14:42:18,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2021-11-19 14:42:20,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:20,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668240971] [2021-11-19 14:42:20,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668240971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:42:20,967 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:42:20,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:42:20,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037521148] [2021-11-19 14:42:20,968 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:20,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:42:20,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:20,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:42:20,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:20,971 INFO L87 Difference]: Start difference. First operand 168322 states and 242259 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2021-11-19 14:42:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:26,278 INFO L93 Difference]: Finished difference Result 168328 states and 242264 transitions. [2021-11-19 14:42:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 513 [2021-11-19 14:42:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:27,317 INFO L225 Difference]: With dead ends: 168328 [2021-11-19 14:42:27,318 INFO L226 Difference]: Without dead ends: 168326 [2021-11-19 14:42:27,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:27,376 INFO L933 BasicCegarLoop]: 3066 mSDtfsCounter, 2894 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:27,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2905 Valid, 9186 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:42:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168326 states.