./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.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_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/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_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/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_24ef2a46-b48a-425e-9248-580ce8d81fc2/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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:20,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:20,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:20,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:20,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:20,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:20,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:20,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:20,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:20,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:20,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:20,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:20,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:20,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:20,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:20,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:20,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:20,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:20,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:20,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:20,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:20,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:20,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:20,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:20,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:20,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:20,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:20,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:20,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:20,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:20,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:20,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:20,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:20,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:20,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:20,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:20,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:20,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:20,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:20,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:20,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:20,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:30:20,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:20,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:20,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:20,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:20,365 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:20,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:20,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:20,366 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:30:20,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:20,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:20,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:30:20,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:30:20,375 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:20,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:30:20,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:30:20,375 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:30:20,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:20,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:30:20,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:20,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:20,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:20,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:20,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:20,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:20,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:20,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:20,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:20,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:20,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:20,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:20,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:20,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:20,383 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:30:20,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:30:20,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:20,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:20,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:20,384 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2021-11-19 14:30:20,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:20,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:20,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:20,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:20,814 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:20,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:30:20,902 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/a275f3c5c/cc641c7539294a4388ec27d67800a37f/FLAGc5936135f [2021-11-19 14:30:22,381 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:22,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:30:22,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/a275f3c5c/cc641c7539294a4388ec27d67800a37f/FLAGc5936135f [2021-11-19 14:30:22,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/a275f3c5c/cc641c7539294a4388ec27d67800a37f [2021-11-19 14:30:22,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:22,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:22,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:22,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:22,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:22,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:22" (1/1) ... [2021-11-19 14:30:22,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67393a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:22, skipping insertion in model container [2021-11-19 14:30:22,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:22" (1/1) ... [2021-11-19 14:30:22,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:22,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:24,530 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 14:30:25,519 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 14:30:26,138 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 14:30:26,159 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 14:30:26,160 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 14:30:26,171 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 14:30:26,173 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 14:30:26,202 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 14:30:26,203 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 14:30:26,285 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 14:30:26,286 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 14:30:26,288 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 14:30:26,292 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 14:30:26,295 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 14:30:26,295 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 14:30:26,296 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 14:30:26,337 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 14:30:26,347 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 14:30:28,863 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-19 14:30:28,866 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-19 14:30:28,867 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-19 14:30:28,868 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-19 14:30:28,904 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:29,067 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 14:30:29,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b01e31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:29, skipping insertion in model container [2021-11-19 14:30:29,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:29,069 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:30:29,071 INFO L158 Benchmark]: Toolchain (without parser) took 6588.96ms. Allocated memory was 98.6MB in the beginning and 234.9MB in the end (delta: 136.3MB). Free memory was 65.9MB in the beginning and 120.3MB in the end (delta: -54.4MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2021-11-19 14:30:29,072 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:30:29,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6583.01ms. Allocated memory was 98.6MB in the beginning and 234.9MB in the end (delta: 136.3MB). Free memory was 65.9MB in the beginning and 120.3MB in the end (delta: -54.4MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2021-11-19 14:30:29,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6583.01ms. Allocated memory was 98.6MB in the beginning and 234.9MB in the end (delta: 136.3MB). Free memory was 65.9MB in the beginning and 120.3MB in the end (delta: -54.4MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5970]: 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/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_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/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_24ef2a46-b48a-425e-9248-580ce8d81fc2/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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:32,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:32,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:32,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:32,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:32,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:32,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:32,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:32,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:32,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:32,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:32,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:32,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:32,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:32,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:32,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:32,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:32,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:32,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:32,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:32,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:32,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:32,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:32,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:32,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:32,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:32,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:32,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:32,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:32,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:32,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:32,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:32,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:32,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:32,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:32,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:32,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:32,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:32,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:32,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:32,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:32,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:30:32,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:32,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:32,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:32,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:32,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:32,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:32,293 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:32,293 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:32,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:32,294 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:32,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:32,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:32,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:32,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:32,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:32,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:32,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:30:32,299 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:30:32,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:32,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:32,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:32,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:32,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:30:32,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:32,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:32,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:32,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:32,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:32,303 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:30:32,303 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:32,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:32,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:32,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:32,304 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2021-11-19 14:30:32,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:32,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:32,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:32,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:32,815 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:32,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:30:32,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/c5ed39499/0dbd2234ed46462faf3786e025f5a9cb/FLAG14b5c1699 [2021-11-19 14:30:34,428 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:34,429 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:30:34,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/c5ed39499/0dbd2234ed46462faf3786e025f5a9cb/FLAG14b5c1699 [2021-11-19 14:30:34,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/data/c5ed39499/0dbd2234ed46462faf3786e025f5a9cb [2021-11-19 14:30:34,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:34,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:34,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:34,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:34,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:34,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:34" (1/1) ... [2021-11-19 14:30:34,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669dd585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:34, skipping insertion in model container [2021-11-19 14:30:34,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:34" (1/1) ... [2021-11-19 14:30:34,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:35,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:41,189 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-19 14:30:41,199 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-19 14:30:41,200 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-19 14:30:41,201 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-19 14:30:41,245 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:41,448 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:30:41,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:42,263 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-19 14:30:42,264 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-19 14:30:42,265 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-19 14:30:42,265 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-19 14:30:42,275 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:42,336 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:30:43,257 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-19 14:30:43,258 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-19 14:30:43,259 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-19 14:30:43,259 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_24ef2a46-b48a-425e-9248-580ce8d81fc2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-19 14:30:43,290 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:43,808 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:30:43,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43 WrapperNode [2021-11-19 14:30:43,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:43,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:43,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:30:43,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:30:43,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,515 INFO L137 Inliner]: procedures = 593, calls = 6324, calls flagged for inlining = 254, calls inlined = 233, statements flattened = 8453 [2021-11-19 14:30:44,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:44,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:30:44,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:30:44,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:30:44,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:44,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:45,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:45,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:45,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:30:45,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:30:45,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:30:45,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:30:45,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (1/1) ... [2021-11-19 14:30:45,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:45,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:45,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:30:45,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:30:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-19 14:30:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-19 14:30:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-11-19 14:30:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-11-19 14:30:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 14:30:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:30:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:30:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:30:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:30:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-11-19 14:30:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-11-19 14:30:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:30:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:30:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:30:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:30:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2021-11-19 14:30:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2021-11-19 14:30:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-11-19 14:30:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-11-19 14:30:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:30:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:30:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:30:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:30:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-19 14:30:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-19 14:30:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 14:30:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-11-19 14:30:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2021-11-19 14:30:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2021-11-19 14:30:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-11-19 14:30:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-11-19 14:30:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-19 14:30:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-19 14:30:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:30:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-11-19 14:30:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-11-19 14:30:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 14:30:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 14:30:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:30:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:30:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 14:30:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 14:30:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:30:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:30:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-11-19 14:30:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-11-19 14:30:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:30:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:30:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:30:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2021-11-19 14:30:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:30:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:30:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 14:30:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 14:30:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:30:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:30:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2021-11-19 14:30:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2021-11-19 14:30:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-11-19 14:30:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-11-19 14:30:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:30:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:30:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-11-19 14:30:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-11-19 14:30:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:30:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:30:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-19 14:30:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-19 14:30:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-19 14:30:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-19 14:30:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:30:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:30:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:30:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:30:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:30:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:30:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:30:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:30:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:30:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:30:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2021-11-19 14:30:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2021-11-19 14:30:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-11-19 14:30:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-11-19 14:30:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:30:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:30:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:30:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:30:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:30:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 14:30:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 14:30:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 14:30:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 14:30:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-11-19 14:30:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-11-19 14:30:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 14:30:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 14:30:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:30:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:30:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:30:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:30:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:30:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:30:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:30:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:30:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:30:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:30:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:30:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:30:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 14:30:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 14:30:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:30:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:30:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:30:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:30:45,287 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:30:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:30:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:30:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:30:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:30:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:30:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-19 14:30:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-19 14:30:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:30:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:30:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 14:30:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 14:30:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:30:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-11-19 14:30:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-11-19 14:30:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-11-19 14:30:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-11-19 14:30:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:30:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:30:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:30:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:30:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-19 14:30:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-19 14:30:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-19 14:30:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-19 14:30:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:30:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-19 14:30:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-19 14:30:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-11-19 14:30:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-11-19 14:30:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:30:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2021-11-19 14:30:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2021-11-19 14:30:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:30:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:30:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:30:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:30:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:30:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:30:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:30:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:30:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:30:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:30:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 14:30:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 14:30:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2021-11-19 14:30:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2021-11-19 14:30:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-11-19 14:30:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-11-19 14:30:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-19 14:30:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-19 14:30:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:30:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:30:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:30:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:30:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:30:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:30:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:30:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:30:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-19 14:30:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-19 14:30:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 14:30:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 14:30:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 14:30:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 14:30:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:30:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:30:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:30:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-11-19 14:30:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-11-19 14:30:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-11-19 14:30:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-11-19 14:30:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:30:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2021-11-19 14:30:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2021-11-19 14:30:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-19 14:30:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-19 14:30:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:30:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-19 14:30:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-19 14:30:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:30:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:30:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:30:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:30:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2021-11-19 14:30:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2021-11-19 14:30:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 14:30:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 14:30:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2021-11-19 14:30:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2021-11-19 14:30:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:30:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:30:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:30:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:30:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 14:30:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 14:30:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:30:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:30:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-11-19 14:30:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-11-19 14:30:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-11-19 14:30:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-11-19 14:30:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:30:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:30:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:30:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:30:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-19 14:30:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-19 14:30:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:30:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:30:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 14:30:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 14:30:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-11-19 14:30:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-11-19 14:30:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 14:30:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 14:30:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:30:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:30:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:30:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:30:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-11-19 14:30:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-11-19 14:30:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-11-19 14:30:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-11-19 14:30:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2021-11-19 14:30:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2021-11-19 14:30:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:30:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:30:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-11-19 14:30:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-11-19 14:30:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-19 14:30:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-19 14:30:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-19 14:30:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:30:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:30:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-11-19 14:30:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-11-19 14:30:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-11-19 14:30:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-11-19 14:30:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 14:30:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 14:30:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-11-19 14:30:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-11-19 14:30:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-19 14:30:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-19 14:30:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:30:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:30:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:30:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:30:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:30:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:30:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-19 14:30:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-19 14:30:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-11-19 14:30:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-11-19 14:30:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-19 14:30:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-19 14:30:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 14:30:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 14:30:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:30:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:30:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-19 14:30:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-19 14:30:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-11-19 14:30:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-11-19 14:30:46,560 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:30:46,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:30:50,574 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:31:58,394 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:32:02,321 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:32:02,364 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:32:02,365 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:32:02,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:02 BoogieIcfgContainer [2021-11-19 14:32:02,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:32:02,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:32:02,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:32:02,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:32:02,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:30:34" (1/3) ... [2021-11-19 14:32:02,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c7556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:02, skipping insertion in model container [2021-11-19 14:32:02,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:43" (2/3) ... [2021-11-19 14:32:02,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c7556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:32:02, skipping insertion in model container [2021-11-19 14:32:02,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:32:02" (3/3) ... [2021-11-19 14:32:02,388 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-19 14:32:02,395 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:32:02,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:32:02,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:32:02,509 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 14:32:02,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:32:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 2399 states, 1649 states have (on average 1.2941176470588236) internal successors, (2134), 1700 states have internal predecessors, (2134), 620 states have call successors, (620), 128 states have call predecessors, (620), 127 states have return successors, (614), 594 states have call predecessors, (614), 614 states have call successors, (614) [2021-11-19 14:32:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 14:32:02,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:02,608 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:02,609 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 14:32:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:02,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2143999495, now seen corresponding path program 1 times [2021-11-19 14:32:02,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:02,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476789096] [2021-11-19 14:32:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:02,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:02,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:02,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:02,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:32:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:11,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 5187 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:32:11,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:32:11,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:32:12,128 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:12,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476789096] [2021-11-19 14:32:12,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476789096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:32:12,129 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:32:12,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:32:12,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488558828] [2021-11-19 14:32:12,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:12,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:32:12,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:12,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:32:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:32:12,180 INFO L87 Difference]: Start difference. First operand has 2399 states, 1649 states have (on average 1.2941176470588236) internal successors, (2134), 1700 states have internal predecessors, (2134), 620 states have call successors, (620), 128 states have call predecessors, (620), 127 states have return successors, (614), 594 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:32:14,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:32:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:32:22,665 INFO L93 Difference]: Finished difference Result 8832 states and 12796 transitions. [2021-11-19 14:32:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:32:22,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2021-11-19 14:32:22,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:32:22,768 INFO L225 Difference]: With dead ends: 8832 [2021-11-19 14:32:22,768 INFO L226 Difference]: Without dead ends: 6418 [2021-11-19 14:32:22,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 174 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 14:32:22,817 INFO L933 BasicCegarLoop]: 4360 mSDtfsCounter, 5627 mSDsluCounter, 7736 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5627 SdHoareTripleChecker+Valid, 12096 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:32:22,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5627 Valid, 12096 Invalid, 1090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 14:32:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2021-11-19 14:32:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 6364. [2021-11-19 14:32:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6364 states, 4389 states have (on average 1.2665755297334245) internal successors, (5559), 4536 states have internal predecessors, (5559), 1612 states have call successors, (1612), 363 states have call predecessors, (1612), 360 states have return successors, (1612), 1536 states have call predecessors, (1612), 1608 states have call successors, (1612) [2021-11-19 14:32:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 8783 transitions. [2021-11-19 14:32:23,604 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 8783 transitions. Word has length 89 [2021-11-19 14:32:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:23,609 INFO L470 AbstractCegarLoop]: Abstraction has 6364 states and 8783 transitions. [2021-11-19 14:32:23,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:32:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 8783 transitions. [2021-11-19 14:32:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:32:23,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:23,629 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:23,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:23,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:32:23,849 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 14:32:23,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:23,850 INFO L85 PathProgramCache]: Analyzing trace with hash -926596189, now seen corresponding path program 1 times [2021-11-19 14:32:23,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:23,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873584515] [2021-11-19 14:32:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:23,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:23,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:23,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:32:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:31,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 5160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:32:31,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:32:32,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:32:32,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:32,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873584515] [2021-11-19 14:32:32,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873584515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:32:32,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:32:32,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:32:32,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779457080] [2021-11-19 14:32:32,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:32,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:32:32,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:32,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:32:32,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:32:32,632 INFO L87 Difference]: Start difference. First operand 6364 states and 8783 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:32:35,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:32:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:32:46,906 INFO L93 Difference]: Finished difference Result 24919 states and 34402 transitions. [2021-11-19 14:32:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:32:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2021-11-19 14:32:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:32:47,104 INFO L225 Difference]: With dead ends: 24919 [2021-11-19 14:32:47,104 INFO L226 Difference]: Without dead ends: 18572 [2021-11-19 14:32:47,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 184 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 14:32:47,164 INFO L933 BasicCegarLoop]: 4484 mSDtfsCounter, 8385 mSDsluCounter, 5151 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 1180 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8385 SdHoareTripleChecker+Valid, 9635 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1180 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:32:47,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8385 Valid, 9635 Invalid, 2431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1180 Valid, 1250 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2021-11-19 14:32:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18572 states. [2021-11-19 14:32:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18572 to 18546. [2021-11-19 14:32:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18546 states, 12779 states have (on average 1.267235307927068) internal successors, (16194), 13198 states have internal predecessors, (16194), 4692 states have call successors, (4692), 1079 states have call predecessors, (4692), 1072 states have return successors, (4700), 4484 states have call predecessors, (4700), 4688 states have call successors, (4700) [2021-11-19 14:32:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18546 states to 18546 states and 25586 transitions. [2021-11-19 14:32:48,794 INFO L78 Accepts]: Start accepts. Automaton has 18546 states and 25586 transitions. Word has length 94 [2021-11-19 14:32:48,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:32:48,795 INFO L470 AbstractCegarLoop]: Abstraction has 18546 states and 25586 transitions. [2021-11-19 14:32:48,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-19 14:32:48,796 INFO L276 IsEmpty]: Start isEmpty. Operand 18546 states and 25586 transitions. [2021-11-19 14:32:48,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 14:32:48,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:32:48,802 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:48,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:32:49,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:32:49,003 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 14:32:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:32:49,005 INFO L85 PathProgramCache]: Analyzing trace with hash 463962046, now seen corresponding path program 1 times [2021-11-19 14:32:49,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:32:49,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692791485] [2021-11-19 14:32:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:32:49,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:32:49,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:32:49,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:32:49,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:32:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:32:57,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 5198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:32:57,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 14:32:57,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-19 14:32:57,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:32:57,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692791485] [2021-11-19 14:32:57,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692791485] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:32:57,996 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:32:57,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:32:57,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959840231] [2021-11-19 14:32:57,997 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:57,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:32:57,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:58,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:32:58,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:32:58,001 INFO L87 Difference]: Start difference. First operand 18546 states and 25586 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:33:00,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:02,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:02,017 INFO L93 Difference]: Finished difference Result 54068 states and 74570 transitions. [2021-11-19 14:33:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:33:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2021-11-19 14:33:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:02,369 INFO L225 Difference]: With dead ends: 54068 [2021-11-19 14:33:02,369 INFO L226 Difference]: Without dead ends: 35539 [2021-11-19 14:33:02,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 14:33:02,469 INFO L933 BasicCegarLoop]: 3868 mSDtfsCounter, 3060 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:02,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3060 Valid, 7073 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:33:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35539 states. [2021-11-19 14:33:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35539 to 35490. [2021-11-19 14:33:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35490 states, 24413 states have (on average 1.266825052226273) internal successors, (30927), 25243 states have internal predecessors, (30927), 8979 states have call successors, (8979), 2120 states have call predecessors, (8979), 2095 states have return successors, (8999), 8531 states have call predecessors, (8999), 8975 states have call successors, (8999) [2021-11-19 14:33:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35490 states to 35490 states and 48905 transitions. [2021-11-19 14:33:05,046 INFO L78 Accepts]: Start accepts. Automaton has 35490 states and 48905 transitions. Word has length 99 [2021-11-19 14:33:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:05,048 INFO L470 AbstractCegarLoop]: Abstraction has 35490 states and 48905 transitions. [2021-11-19 14:33:05,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:33:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 35490 states and 48905 transitions. [2021-11-19 14:33:05,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:33:05,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:05,072 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2021-11-19 14:33:05,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 14:33:05,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:05,287 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 14:33:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash 836421759, now seen corresponding path program 1 times [2021-11-19 14:33:05,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:05,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726817744] [2021-11-19 14:33:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:05,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:05,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:05,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:05,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:33:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:13,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 5301 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:33:13,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:33:14,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:33:15,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:15,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726817744] [2021-11-19 14:33:15,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726817744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:15,733 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:15,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:33:15,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824211017] [2021-11-19 14:33:15,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:15,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:33:15,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:33:15,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:33:15,736 INFO L87 Difference]: Start difference. First operand 35490 states and 48905 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:33:17,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:17,528 INFO L93 Difference]: Finished difference Result 35496 states and 48910 transitions. [2021-11-19 14:33:17,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:17,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 166 [2021-11-19 14:33:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:17,759 INFO L225 Difference]: With dead ends: 35496 [2021-11-19 14:33:17,760 INFO L226 Difference]: Without dead ends: 35494 [2021-11-19 14:33:17,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 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 14:33:17,784 INFO L933 BasicCegarLoop]: 3290 mSDtfsCounter, 3196 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 16425 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:17,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3207 Valid, 16425 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35494 states. [2021-11-19 14:33:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35494 to 35494. [2021-11-19 14:33:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35494 states, 24416 states have (on average 1.2667922673656618) internal successors, (30930), 25246 states have internal predecessors, (30930), 8979 states have call successors, (8979), 2121 states have call predecessors, (8979), 2096 states have return successors, (8999), 8531 states have call predecessors, (8999), 8975 states have call successors, (8999) [2021-11-19 14:33:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35494 states to 35494 states and 48908 transitions. [2021-11-19 14:33:20,566 INFO L78 Accepts]: Start accepts. Automaton has 35494 states and 48908 transitions. Word has length 166 [2021-11-19 14:33:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:20,569 INFO L470 AbstractCegarLoop]: Abstraction has 35494 states and 48908 transitions. [2021-11-19 14:33:20,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:33:20,569 INFO L276 IsEmpty]: Start isEmpty. Operand 35494 states and 48908 transitions. [2021-11-19 14:33:20,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:33:20,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:20,586 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 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] [2021-11-19 14:33:20,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:20,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:20,799 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:33:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash 449362951, now seen corresponding path program 1 times [2021-11-19 14:33:20,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:20,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51790827] [2021-11-19 14:33:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:20,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:20,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:20,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:20,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:33:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:28,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 5308 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:33:28,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:33:30,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-19 14:33:31,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:31,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51790827] [2021-11-19 14:33:31,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51790827] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:33:31,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:33:31,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:33:31,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217226930] [2021-11-19 14:33:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:31,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:33:31,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:33:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:33:31,476 INFO L87 Difference]: Start difference. First operand 35494 states and 48908 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:33:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:33,239 INFO L93 Difference]: Finished difference Result 35500 states and 48913 transitions. [2021-11-19 14:33:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2021-11-19 14:33:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:33,617 INFO L225 Difference]: With dead ends: 35500 [2021-11-19 14:33:33,617 INFO L226 Difference]: Without dead ends: 35498 [2021-11-19 14:33:33,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:33:33,633 INFO L933 BasicCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:33,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3230 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:33,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35498 states. [2021-11-19 14:33:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35498 to 35498. [2021-11-19 14:33:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35498 states, 24419 states have (on average 1.266759490560629) internal successors, (30933), 25249 states have internal predecessors, (30933), 8979 states have call successors, (8979), 2122 states have call predecessors, (8979), 2097 states have return successors, (8999), 8531 states have call predecessors, (8999), 8975 states have call successors, (8999) [2021-11-19 14:33:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35498 states to 35498 states and 48911 transitions. [2021-11-19 14:33:35,769 INFO L78 Accepts]: Start accepts. Automaton has 35498 states and 48911 transitions. Word has length 171 [2021-11-19 14:33:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:35,770 INFO L470 AbstractCegarLoop]: Abstraction has 35498 states and 48911 transitions. [2021-11-19 14:33:35,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:33:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 35498 states and 48911 transitions. [2021-11-19 14:33:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-19 14:33:35,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:35,783 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 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] [2021-11-19 14:33:35,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:35,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:35,997 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 14:33:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1338692927, now seen corresponding path program 1 times [2021-11-19 14:33:36,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:36,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53574164] [2021-11-19 14:33:36,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:36,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:36,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:36,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:36,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:33:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 5315 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:33:44,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:33:45,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-19 14:33:46,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:46,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53574164] [2021-11-19 14:33:46,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53574164] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:33:46,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:33:46,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:33:46,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585349179] [2021-11-19 14:33:46,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:46,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:33:46,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:33:46,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:33:46,713 INFO L87 Difference]: Start difference. First operand 35498 states and 48911 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:33:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:48,527 INFO L93 Difference]: Finished difference Result 35504 states and 48916 transitions. [2021-11-19 14:33:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2021-11-19 14:33:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:48,742 INFO L225 Difference]: With dead ends: 35504 [2021-11-19 14:33:48,743 INFO L226 Difference]: Without dead ends: 35502 [2021-11-19 14:33:48,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:33:48,761 INFO L933 BasicCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:48,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3229 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35502 states. [2021-11-19 14:33:50,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35502 to 35502. [2021-11-19 14:33:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35502 states, 24422 states have (on average 1.2667267218082057) internal successors, (30936), 25252 states have internal predecessors, (30936), 8979 states have call successors, (8979), 2123 states have call predecessors, (8979), 2098 states have return successors, (8999), 8531 states have call predecessors, (8999), 8975 states have call successors, (8999) [2021-11-19 14:33:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35502 states to 35502 states and 48914 transitions. [2021-11-19 14:33:51,015 INFO L78 Accepts]: Start accepts. Automaton has 35502 states and 48914 transitions. Word has length 176 [2021-11-19 14:33:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:51,016 INFO L470 AbstractCegarLoop]: Abstraction has 35502 states and 48914 transitions. [2021-11-19 14:33:51,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-19 14:33:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 35502 states and 48914 transitions. [2021-11-19 14:33:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-19 14:33:51,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:51,036 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 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] [2021-11-19 14:33:51,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 14:33:51,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:51,253 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 14:33:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash -738129333, now seen corresponding path program 1 times [2021-11-19 14:33:51,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:51,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293294996] [2021-11-19 14:33:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:51,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:51,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:51,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:51,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:33:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:59,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 5373 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:59,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-11-19 14:33:59,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-19 14:34:00,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:00,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293294996] [2021-11-19 14:34:00,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293294996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:00,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:00,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:34:00,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777695326] [2021-11-19 14:34:00,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:00,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:34:00,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:34:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:34:00,137 INFO L87 Difference]: Start difference. First operand 35502 states and 48914 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:34:02,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:34:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:11,339 INFO L93 Difference]: Finished difference Result 71169 states and 97997 transitions. [2021-11-19 14:34:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:11,340 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 193 [2021-11-19 14:34:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:11,602 INFO L225 Difference]: With dead ends: 71169 [2021-11-19 14:34:11,602 INFO L226 Difference]: Without dead ends: 47274 [2021-11-19 14:34:11,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 382 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 14:34:11,720 INFO L933 BasicCegarLoop]: 7000 mSDtfsCounter, 6419 mSDsluCounter, 5806 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6419 SdHoareTripleChecker+Valid, 12806 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:11,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6419 Valid, 12806 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1256 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2021-11-19 14:34:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47274 states. [2021-11-19 14:34:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47274 to 47206. [2021-11-19 14:34:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47206 states, 32466 states have (on average 1.2651697160105957) internal successors, (41075), 33566 states have internal predecessors, (41075), 11937 states have call successors, (11937), 2833 states have call predecessors, (11937), 2800 states have return successors, (11965), 11346 states have call predecessors, (11965), 11933 states have call successors, (11965) [2021-11-19 14:34:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47206 states to 47206 states and 64977 transitions. [2021-11-19 14:34:14,742 INFO L78 Accepts]: Start accepts. Automaton has 47206 states and 64977 transitions. Word has length 193 [2021-11-19 14:34:14,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:14,743 INFO L470 AbstractCegarLoop]: Abstraction has 47206 states and 64977 transitions. [2021-11-19 14:34:14,743 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-19 14:34:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 47206 states and 64977 transitions. [2021-11-19 14:34:14,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 14:34:14,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:14,758 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 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] [2021-11-19 14:34:14,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-19 14:34:14,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:14,973 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 14:34:14,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:14,974 INFO L85 PathProgramCache]: Analyzing trace with hash -186853689, now seen corresponding path program 1 times [2021-11-19 14:34:14,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:14,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886880204] [2021-11-19 14:34:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:14,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:14,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:14,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:14,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:34:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:22,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 5322 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:22,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-19 14:34:24,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-11-19 14:34:25,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:25,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886880204] [2021-11-19 14:34:25,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886880204] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:34:25,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:34:25,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:34:25,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75785010] [2021-11-19 14:34:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:25,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:25,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:25,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:34:25,199 INFO L87 Difference]: Start difference. First operand 47206 states and 64977 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:34:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:27,492 INFO L93 Difference]: Finished difference Result 47212 states and 64982 transitions. [2021-11-19 14:34:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:34:27,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 181 [2021-11-19 14:34:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:27,736 INFO L225 Difference]: With dead ends: 47212 [2021-11-19 14:34:27,736 INFO L226 Difference]: Without dead ends: 47210 [2021-11-19 14:34:27,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:34:27,761 INFO L933 BasicCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:27,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3228 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:34:27,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47210 states. [2021-11-19 14:34:30,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47210 to 47210. [2021-11-19 14:34:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47210 states, 32469 states have (on average 1.2651452154362623) internal successors, (41078), 33569 states have internal predecessors, (41078), 11937 states have call successors, (11937), 2834 states have call predecessors, (11937), 2801 states have return successors, (11965), 11346 states have call predecessors, (11965), 11933 states have call successors, (11965) [2021-11-19 14:34:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47210 states to 47210 states and 64980 transitions. [2021-11-19 14:34:30,766 INFO L78 Accepts]: Start accepts. Automaton has 47210 states and 64980 transitions. Word has length 181 [2021-11-19 14:34:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:30,767 INFO L470 AbstractCegarLoop]: Abstraction has 47210 states and 64980 transitions. [2021-11-19 14:34:30,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:34:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 47210 states and 64980 transitions. [2021-11-19 14:34:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 14:34:30,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:30,784 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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] [2021-11-19 14:34:30,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:31,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:31,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 14:34:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:31,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1209246207, now seen corresponding path program 1 times [2021-11-19 14:34:31,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:31,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054887129] [2021-11-19 14:34:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:31,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:31,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:31,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:31,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:34:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:38,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 5329 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:38,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-11-19 14:34:40,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-11-19 14:34:40,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:40,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054887129] [2021-11-19 14:34:40,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054887129] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:34:40,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:34:40,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:34:40,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324872617] [2021-11-19 14:34:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:40,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:40,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:34:40,950 INFO L87 Difference]: Start difference. First operand 47210 states and 64980 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:34:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:43,650 INFO L93 Difference]: Finished difference Result 47216 states and 64985 transitions. [2021-11-19 14:34:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:34:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2021-11-19 14:34:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:43,839 INFO L225 Difference]: With dead ends: 47216 [2021-11-19 14:34:43,839 INFO L226 Difference]: Without dead ends: 47214 [2021-11-19 14:34:43,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:34:43,860 INFO L933 BasicCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:43,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3227 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:34:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47214 states. [2021-11-19 14:34:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47214 to 47214. [2021-11-19 14:34:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47214 states, 32472 states have (on average 1.2651207193890122) internal successors, (41081), 33572 states have internal predecessors, (41081), 11937 states have call successors, (11937), 2835 states have call predecessors, (11937), 2802 states have return successors, (11965), 11346 states have call predecessors, (11965), 11933 states have call successors, (11965) [2021-11-19 14:34:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47214 states to 47214 states and 64983 transitions. [2021-11-19 14:34:46,747 INFO L78 Accepts]: Start accepts. Automaton has 47214 states and 64983 transitions. Word has length 186 [2021-11-19 14:34:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:46,748 INFO L470 AbstractCegarLoop]: Abstraction has 47214 states and 64983 transitions. [2021-11-19 14:34:46,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-19 14:34:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 47214 states and 64983 transitions. [2021-11-19 14:34:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-19 14:34:46,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:46,764 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2021-11-19 14:34:46,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:46,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:46,989 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 14:34:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash 410470082, now seen corresponding path program 1 times [2021-11-19 14:34:46,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:46,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577740867] [2021-11-19 14:34:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:46,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:47,000 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:47,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:34:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:55,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 5386 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:34:55,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-19 14:34:56,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-19 14:34:56,630 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:56,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577740867] [2021-11-19 14:34:56,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577740867] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:56,631 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:56,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:34:56,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576029374] [2021-11-19 14:34:56,631 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:56,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:34:56,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:34:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:34:56,633 INFO L87 Difference]: Start difference. First operand 47214 states and 64983 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 14:34:59,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:11,850 INFO L93 Difference]: Finished difference Result 106155 states and 146095 transitions. [2021-11-19 14:35:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:11,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 202 [2021-11-19 14:35:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:12,452 INFO L225 Difference]: With dead ends: 106155 [2021-11-19 14:35:12,452 INFO L226 Difference]: Without dead ends: 70548 [2021-11-19 14:35:12,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 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 14:35:12,602 INFO L933 BasicCegarLoop]: 6990 mSDtfsCounter, 6395 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 590 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 12202 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:12,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6395 Valid, 12202 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 1251 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2021-11-19 14:35:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70548 states. [2021-11-19 14:35:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70548 to 70502. [2021-11-19 14:35:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70502 states, 48464 states have (on average 1.2652071640805547) internal successors, (61317), 50104 states have internal predecessors, (61317), 17841 states have call successors, (17841), 4243 states have call predecessors, (17841), 4194 states have return successors, (17885), 16964 states have call predecessors, (17885), 17837 states have call successors, (17885) [2021-11-19 14:35:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70502 states to 70502 states and 97043 transitions. [2021-11-19 14:35:17,326 INFO L78 Accepts]: Start accepts. Automaton has 70502 states and 97043 transitions. Word has length 202 [2021-11-19 14:35:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:17,327 INFO L470 AbstractCegarLoop]: Abstraction has 70502 states and 97043 transitions. [2021-11-19 14:35:17,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-19 14:35:17,328 INFO L276 IsEmpty]: Start isEmpty. Operand 70502 states and 97043 transitions. [2021-11-19 14:35:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-19 14:35:17,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:17,343 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2021-11-19 14:35:17,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:17,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:17,557 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 14:35:17,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:17,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1309684103, now seen corresponding path program 1 times [2021-11-19 14:35:17,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:17,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363957053] [2021-11-19 14:35:17,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:17,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:17,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:17,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:17,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24ef2a46-b48a-425e-9248-580ce8d81fc2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:35:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:25,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 5336 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:25,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-19 14:35:26,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-19 14:35:27,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:27,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363957053] [2021-11-19 14:35:27,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363957053] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:35:27,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:35:27,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:35:27,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740003148] [2021-11-19 14:35:27,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:27,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:27,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:27,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:27,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:35:27,662 INFO L87 Difference]: Start difference. First operand 70502 states and 97043 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:35:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:31,438 INFO L93 Difference]: Finished difference Result 70508 states and 97048 transitions. [2021-11-19 14:35:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:35:31,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2021-11-19 14:35:31,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted.