./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.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_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/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_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/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_88a01447-c8f7-4a48-9dc5-c0acade1a010/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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:37:37,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:37:37,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:37:37,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:37:37,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:37:37,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:37:37,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:37:37,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:37:37,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:37:37,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:37:37,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:37:37,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:37:37,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:37:37,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:37:37,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:37:37,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:37:37,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:37:37,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:37:37,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:37:37,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:37:37,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:37:37,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:37:37,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:37:37,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:37:37,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:37:37,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:37:37,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:37:37,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:37:37,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:37:37,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:37:37,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:37:37,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:37:37,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:37:37,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:37:37,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:37:37,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:37:37,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:37:37,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:37:37,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:37:37,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:37:37,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:37:37,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:37:37,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:37:37,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:37:37,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:37:37,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:37:37,513 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:37:37,513 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:37:37,513 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:37:37,514 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:37:37,514 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:37:37,514 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:37:37,515 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:37:37,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:37:37,516 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:37:37,516 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:37:37,516 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:37:37,516 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:37:37,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:37:37,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:37:37,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:37:37,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:37:37,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:37:37,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:37:37,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:37:37,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:37:37,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:37:37,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:37:37,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:37:37,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:37:37,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:37:37,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:37:37,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:37:37,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:37:37,523 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:37:37,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:37:37,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:37:37,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:37:37,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:37:37,524 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2021-11-19 14:37:37,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:37:37,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:37:37,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:37:37,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:37:37,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:37:37,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-19 14:37:37,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/087d05e50/4606f62bedd14a9688e757f71b146c7b/FLAG411f453b2 [2021-11-19 14:37:39,245 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:37:39,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-19 14:37:39,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/087d05e50/4606f62bedd14a9688e757f71b146c7b/FLAG411f453b2 [2021-11-19 14:37:39,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/087d05e50/4606f62bedd14a9688e757f71b146c7b [2021-11-19 14:37:39,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:37:39,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:37:39,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:37:39,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:37:39,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:37:39,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:39" (1/1) ... [2021-11-19 14:37:39,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a321b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:39, skipping insertion in model container [2021-11-19 14:37:39,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:39" (1/1) ... [2021-11-19 14:37:39,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:37:39,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:37:41,146 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 14:37:41,322 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 14:37:41,345 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 14:37:41,368 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 14:37:41,374 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 14:37:41,400 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 14:37:41,409 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 14:37:41,446 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 14:37:41,458 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 14:37:41,470 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 14:37:41,494 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 14:37:41,509 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 14:37:41,559 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 14:37:41,567 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 14:37:41,575 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 14:37:41,583 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 14:37:41,594 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 14:37:41,607 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 14:37:41,616 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 14:37:41,624 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 14:37:41,639 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 14:37:41,647 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 14:37:41,655 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 14:37:41,663 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 14:37:41,673 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 14:37:41,682 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 14:37:41,690 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 14:37:41,699 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 14:37:41,961 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 14:37:41,994 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 14:37:42,005 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 14:37:42,013 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 14:37:42,330 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 14:37:42,331 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 14:37:42,331 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 14:37:42,332 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 14:37:42,343 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 14:37:42,344 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 14:37:42,345 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 14:37:42,370 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 14:37:42,393 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 14:37:42,401 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 14:37:42,410 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 14:37:42,412 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 14:37:42,429 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 14:37:42,437 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 14:37:42,490 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 14:37:42,508 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 14:37:42,550 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 14:37:42,556 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 14:37:42,558 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 14:37:42,974 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 14:37:43,047 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 14:37:43,095 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 14:37:43,097 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 14:37:43,099 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 14:37:43,100 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 14:37:43,115 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 14:37:43,129 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 14:37:43,752 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2021-11-19 14:37:43,755 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2021-11-19 14:37:43,757 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2021-11-19 14:37:43,758 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2021-11-19 14:37:43,788 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:37:43,817 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 14:37:43,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@202ec1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:43, skipping insertion in model container [2021-11-19 14:37:43,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:37:43,818 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:37:43,821 INFO L158 Benchmark]: Toolchain (without parser) took 4389.63ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 70.0MB in the beginning and 101.4MB in the end (delta: -31.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2021-11-19 14:37:43,821 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:37:43,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4386.56ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 70.0MB in the beginning and 101.4MB in the end (delta: -31.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2021-11-19 14:37:43,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4386.56ms. Allocated memory was 102.8MB in the beginning and 192.9MB in the end (delta: 90.2MB). Free memory was 70.0MB in the beginning and 101.4MB in the end (delta: -31.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4487]: 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/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_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/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_88a01447-c8f7-4a48-9dc5-c0acade1a010/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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:37:46,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:37:46,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:37:46,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:37:46,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:37:46,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:37:46,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:37:46,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:37:46,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:37:46,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:37:46,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:37:46,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:37:46,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:37:46,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:37:46,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:37:46,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:37:46,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:37:46,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:37:46,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:37:46,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:37:46,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:37:46,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:37:46,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:37:46,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:37:46,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:37:46,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:37:46,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:37:46,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:37:46,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:37:46,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:37:46,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:37:46,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:37:46,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:37:46,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:37:46,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:37:46,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:37:46,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:37:46,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:37:46,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:37:46,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:37:46,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:37:46,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:37:46,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:37:46,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:37:46,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:37:46,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:37:46,484 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:37:46,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:37:46,484 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:37:46,484 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:37:46,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:37:46,485 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:37:46,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:37:46,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:37:46,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:37:46,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:37:46,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:37:46,489 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:37:46,489 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:37:46,489 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:37:46,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:37:46,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:37:46,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:37:46,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:37:46,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:37:46,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:37:46,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:37:46,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:37:46,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:37:46,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:37:46,492 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:37:46,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:46,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:37:46,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:37:46,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:37:46,493 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2021-11-19 14:37:46,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:37:46,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:37:46,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:37:46,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:37:46,971 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:37:46,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-19 14:37:47,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/7f9744ae6/8d3f454d5f5042c89c2a8a257fc6395d/FLAG591e3f5e7 [2021-11-19 14:37:48,279 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:37:48,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-19 14:37:48,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/7f9744ae6/8d3f454d5f5042c89c2a8a257fc6395d/FLAG591e3f5e7 [2021-11-19 14:37:48,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/data/7f9744ae6/8d3f454d5f5042c89c2a8a257fc6395d [2021-11-19 14:37:48,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:37:48,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:37:48,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:37:48,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:37:48,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:37:48,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:48" (1/1) ... [2021-11-19 14:37:48,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9044ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:48, skipping insertion in model container [2021-11-19 14:37:48,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:48" (1/1) ... [2021-11-19 14:37:48,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:37:48,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:37:52,886 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2021-11-19 14:37:52,894 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2021-11-19 14:37:52,895 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2021-11-19 14:37:52,896 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2021-11-19 14:37:52,928 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:37:52,972 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:37:53,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:37:53,683 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2021-11-19 14:37:53,684 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2021-11-19 14:37:53,684 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2021-11-19 14:37:53,685 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2021-11-19 14:37:53,691 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:37:53,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:37:54,694 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2021-11-19 14:37:54,695 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2021-11-19 14:37:54,696 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2021-11-19 14:37:54,698 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_88a01447-c8f7-4a48-9dc5-c0acade1a010/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2021-11-19 14:37:54,704 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:37:55,090 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:37:55,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55 WrapperNode [2021-11-19 14:37:55,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:37:55,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:37:55,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:37:55,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:37:55,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:55,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:55,704 INFO L137 Inliner]: procedures = 407, calls = 6166, calls flagged for inlining = 164, calls inlined = 141, statements flattened = 13420 [2021-11-19 14:37:55,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:37:55,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:37:55,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:37:55,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:37:55,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:55,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:55,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:55,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:56,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:56,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:56,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:56,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:37:56,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:37:56,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:37:56,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:37:56,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2021-11-19 14:37:56,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:37:56,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:37:56,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:37:56,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:37:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-19 14:37:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-19 14:37:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure to_sd [2021-11-19 14:37:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sd [2021-11-19 14:37:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_tuner [2021-11-19 14:37:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_tuner [2021-11-19 14:37:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:37:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:37:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2388x [2021-11-19 14:37:56,393 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2388x [2021-11-19 14:37:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_tuner [2021-11-19 14:37:56,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_tuner [2021-11-19 14:37:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2583x [2021-11-19 14:37:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2583x [2021-11-19 14:37:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:37:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:37:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure to_ir_state [2021-11-19 14:37:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure to_ir_state [2021-11-19 14:37:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_ns [2021-11-19 14:37:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_ns [2021-11-19 14:37:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2021-11-19 14:37:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2021-11-19 14:37:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:37:56,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:37:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-19 14:37:56,396 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-19 14:37:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2021-11-19 14:37:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2021-11-19 14:37:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-19 14:37:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-19 14:37:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:37:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:37:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_sliced_fmt [2021-11-19 14:37:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_sliced_fmt [2021-11-19 14:37:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:37:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:37:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:37:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-11-19 14:37:56,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-11-19 14:37:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_resolution [2021-11-19 14:37:56,400 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_resolution [2021-11-19 14:37:56,401 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-19 14:37:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-19 14:37:56,402 INFO L130 BoogieDeclarations]: Found specification of procedure cx25836_initialize [2021-11-19 14:37:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25836_initialize [2021-11-19 14:37:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write4 [2021-11-19 14:37:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write4 [2021-11-19 14:37:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ext_ctrls [2021-11-19 14:37:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ext_ctrls [2021-11-19 14:37:56,404 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_frequency [2021-11-19 14:37:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_frequency [2021-11-19 14:37:56,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:37:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:37:56,405 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_std_setup [2021-11-19 14:37:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_std_setup [2021-11-19 14:37:56,406 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2021-11-19 14:37:56,406 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2021-11-19 14:37:56,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:37:56,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:37:56,407 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_modulation_enable [2021-11-19 14:37:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_modulation_enable [2021-11-19 14:37:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure cx23885_initialize [2021-11-19 14:37:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23885_initialize [2021-11-19 14:37:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_raw_fmt [2021-11-19 14:37:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_raw_fmt [2021-11-19 14:37:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or [2021-11-19 14:37:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or [2021-11-19 14:37:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ctrl [2021-11-19 14:37:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ctrl [2021-11-19 14:37:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure set_audclk_freq [2021-11-19 14:37:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure set_audclk_freq [2021-11-19 14:37:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_g_parameters [2021-11-19 14:37:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_g_parameters [2021-11-19 14:37:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_initialize [2021-11-19 14:37:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_initialize [2021-11-19 14:37:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:37:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:37:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_input_status [2021-11-19 14:37:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_input_status [2021-11-19 14:37:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure lpf_count_to_ns [2021-11-19 14:37:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure lpf_count_to_ns [2021-11-19 14:37:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:37:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-19 14:37:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_set_audclk_freq [2021-11-19 14:37:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_set_audclk_freq [2021-11-19 14:37:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:37:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_us [2021-11-19 14:37:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_us [2021-11-19 14:37:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:37:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:37:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:37:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:37:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:37:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:37:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:37:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:37:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:37:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2021-11-19 14:37:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2021-11-19 14:37:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:37:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_decode_vbi_line [2021-11-19 14:37:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_decode_vbi_line [2021-11-19 14:37:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_clocks_to_clock_divider [2021-11-19 14:37:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_clocks_to_clock_divider [2021-11-19 14:37:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx231xx [2021-11-19 14:37:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx231xx [2021-11-19 14:37:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-19 14:37:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-19 14:37:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_probe [2021-11-19 14:37:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_probe [2021-11-19 14:37:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:37:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:37:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-19 14:37:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-19 14:37:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure odd_parity [2021-11-19 14:37:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure odd_parity [2021-11-19 14:37:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_enable [2021-11-19 14:37:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_enable [2021-11-19 14:37:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:37:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:37:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure filter_rx_s_min_width [2021-11-19 14:37:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_rx_s_min_width [2021-11-19 14:37:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:37:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_shutdown [2021-11-19 14:37:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_shutdown [2021-11-19 14:37:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:37:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:37:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:37:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:37:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:37:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:37:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ctrl [2021-11-19 14:37:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ctrl [2021-11-19 14:37:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:37:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_s_parameters [2021-11-19 14:37:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_s_parameters [2021-11-19 14:37:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:37:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:37:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_change [2021-11-19 14:37:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure input_change [2021-11-19 14:37:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_g_parameters [2021-11-19 14:37:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_g_parameters [2021-11-19 14:37:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_querymenu [2021-11-19 14:37:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_querymenu [2021-11-19 14:37:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:37:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:37:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:37:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:37:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_probe [2021-11-19 14:37:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_probe [2021-11-19 14:37:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-19 14:37:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-19 14:37:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_shutdown [2021-11-19 14:37:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_shutdown [2021-11-19 14:37:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:37:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:37:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_enable [2021-11-19 14:37:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_enable [2021-11-19 14:37:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:37:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:37:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:37:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:37:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_freq_to_clock_divider [2021-11-19 14:37:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_freq_to_clock_divider [2021-11-19 14:37:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_demodulation_enable [2021-11-19 14:37:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_demodulation_enable [2021-11-19 14:37:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 14:37:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 14:37:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:37:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:37:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:37:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write [2021-11-19 14:37:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write [2021-11-19 14:37:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:37:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_mbus_fmt [2021-11-19 14:37:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_mbus_fmt [2021-11-19 14:37:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure set_volume [2021-11-19 14:37:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure set_volume [2021-11-19 14:37:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure cx231xx_initialize [2021-11-19 14:37:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cx231xx_initialize [2021-11-19 14:37:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:37:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ext_ctrls [2021-11-19 14:37:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ext_ctrls [2021-11-19 14:37:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:37:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:37:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:37:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:37:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:37:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:37:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 14:37:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 14:37:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:37:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:37:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-19 14:37:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-19 14:37:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_try_ext_ctrls [2021-11-19 14:37:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_try_ext_ctrls [2021-11-19 14:37:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata___0 [2021-11-19 14:37:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata___0 [2021-11-19 14:37:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_tx [2021-11-19 14:37:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_tx [2021-11-19 14:37:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_queryctrl [2021-11-19 14:37:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_queryctrl [2021-11-19 14:37:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_freq [2021-11-19 14:37:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_freq [2021-11-19 14:37:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_std [2021-11-19 14:37:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_std [2021-11-19 14:37:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_s_parameters [2021-11-19 14:37:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_s_parameters [2021-11-19 14:37:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure to_state [2021-11-19 14:37:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure to_state [2021-11-19 14:37:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_register [2021-11-19 14:37:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_register [2021-11-19 14:37:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_register [2021-11-19 14:37:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_register [2021-11-19 14:37:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure set_input [2021-11-19 14:37:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure set_input [2021-11-19 14:37:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:37:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:37:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure cx23888_std_setup [2021-11-19 14:37:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23888_std_setup [2021-11-19 14:37:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:37:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-19 14:37:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-19 14:37:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:37:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_rx [2021-11-19 14:37:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_rx [2021-11-19 14:37:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or4 [2021-11-19 14:37:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or4 [2021-11-19 14:37:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read [2021-11-19 14:37:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read [2021-11-19 14:37:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_sliced_fmt [2021-11-19 14:37:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_sliced_fmt [2021-11-19 14:37:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2021-11-19 14:37:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2021-11-19 14:37:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_adapter_id [2021-11-19 14:37:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_adapter_id [2021-11-19 14:37:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_carrier_freq [2021-11-19 14:37:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_carrier_freq [2021-11-19 14:37:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:37:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:37:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_s_edge_detection [2021-11-19 14:37:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_s_edge_detection [2021-11-19 14:37:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-19 14:37:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-19 14:37:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read4 [2021-11-19 14:37:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read4 [2021-11-19 14:37:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-19 14:37:56,470 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-19 14:37:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:37:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:37:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2021-11-19 14:37:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2021-11-19 14:37:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23885 [2021-11-19 14:37:56,471 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23885 [2021-11-19 14:37:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_pulse_clocks [2021-11-19 14:37:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_pulse_clocks [2021-11-19 14:37:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23888 [2021-11-19 14:37:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23888 [2021-11-19 14:37:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23887 [2021-11-19 14:37:56,472 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23887 [2021-11-19 14:37:58,226 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:37:58,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:38:02,181 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:40:45,638 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:40:45,707 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:40:45,708 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:40:45,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:45 BoogieIcfgContainer [2021-11-19 14:40:45,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:40:45,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:40:45,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:40:45,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:40:45,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:37:48" (1/3) ... [2021-11-19 14:40:45,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79997493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:45, skipping insertion in model container [2021-11-19 14:40:45,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (2/3) ... [2021-11-19 14:40:45,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79997493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:45, skipping insertion in model container [2021-11-19 14:40:45,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:45" (3/3) ... [2021-11-19 14:40:45,731 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2021-11-19 14:40:45,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:40:45,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 14:40:45,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:40:45,887 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:40:45,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 14:40:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) [2021-11-19 14:40:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-19 14:40:46,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:46,128 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 14:40:46,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash 848135627, now seen corresponding path program 1 times [2021-11-19 14:40:46,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:46,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977609902] [2021-11-19 14:40:46,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:46,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:46,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:46,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:40:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:48,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:40:48,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:40:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:40:50,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:40:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:40:51,098 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:40:51,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977609902] [2021-11-19 14:40:51,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977609902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:51,099 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:51,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:40:51,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342908661] [2021-11-19 14:40:51,102 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:51,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:40:51,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:40:51,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:40:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:40:51,166 INFO L87 Difference]: Start difference. First operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:40:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:53,057 INFO L93 Difference]: Finished difference Result 16844 states and 25111 transitions. [2021-11-19 14:40:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 48 [2021-11-19 14:40:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:53,203 INFO L225 Difference]: With dead ends: 16844 [2021-11-19 14:40:53,203 INFO L226 Difference]: Without dead ends: 8426 [2021-11-19 14:40:53,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:40:53,314 INFO L933 BasicCegarLoop]: 12539 mSDtfsCounter, 12510 mSDsluCounter, 37607 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12518 SdHoareTripleChecker+Valid, 50146 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:53,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12518 Valid, 50146 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:40:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8426 states. [2021-11-19 14:40:59,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8426. [2021-11-19 14:40:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8426 states, 4828 states have (on average 1.1555509527754764) internal successors, (5579), 4854 states have internal predecessors, (5579), 3479 states have call successors, (3479), 117 states have call predecessors, (3479), 116 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:40:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 12534 transitions. [2021-11-19 14:40:59,208 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 12534 transitions. Word has length 48 [2021-11-19 14:40:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 8426 states and 12534 transitions. [2021-11-19 14:40:59,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:40:59,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 12534 transitions. [2021-11-19 14:40:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-19 14:40:59,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:59,217 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 14:40:59,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:40:59,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:40:59,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-19 14:40:59,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1552207272, now seen corresponding path program 1 times [2021-11-19 14:40:59,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:40:59,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822931781] [2021-11-19 14:40:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:59,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:40:59,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:40:59,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:40:59,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:41:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:01,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:01,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:41:03,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:41:04,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:04,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822931781] [2021-11-19 14:41:04,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822931781] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:04,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:04,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:04,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930866424] [2021-11-19 14:41:04,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:04,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:04,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:04,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:04,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:04,140 INFO L87 Difference]: Start difference. First operand 8426 states and 12534 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:41:05,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:05,684 INFO L93 Difference]: Finished difference Result 8432 states and 12539 transitions. [2021-11-19 14:41:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:05,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-11-19 14:41:05,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:05,781 INFO L225 Difference]: With dead ends: 8432 [2021-11-19 14:41:05,781 INFO L226 Difference]: Without dead ends: 8430 [2021-11-19 14:41:05,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:05,795 INFO L933 BasicCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12513 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:05,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12513 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:41:05,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2021-11-19 14:41:10,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8430. [2021-11-19 14:41:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 4831 states have (on average 1.1554543572759264) internal successors, (5582), 4857 states have internal predecessors, (5582), 3479 states have call successors, (3479), 118 states have call predecessors, (3479), 117 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:41:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12537 transitions. [2021-11-19 14:41:10,676 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12537 transitions. Word has length 53 [2021-11-19 14:41:10,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:10,677 INFO L470 AbstractCegarLoop]: Abstraction has 8430 states and 12537 transitions. [2021-11-19 14:41:10,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:41:10,678 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12537 transitions. [2021-11-19 14:41:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 14:41:10,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:10,690 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 14:41:10,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:10,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:10,905 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 14:41:10,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash 821128619, now seen corresponding path program 1 times [2021-11-19 14:41:10,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:10,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379593758] [2021-11-19 14:41:10,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:10,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:10,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:10,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:10,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:41:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:13,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:13,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:41:14,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:41:15,820 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:15,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379593758] [2021-11-19 14:41:15,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379593758] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:15,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:15,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:15,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688364206] [2021-11-19 14:41:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:15,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:15,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:15,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:15,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:15,823 INFO L87 Difference]: Start difference. First operand 8430 states and 12537 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:41:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:17,155 INFO L93 Difference]: Finished difference Result 8436 states and 12542 transitions. [2021-11-19 14:41:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:17,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-19 14:41:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:17,281 INFO L225 Difference]: With dead ends: 8436 [2021-11-19 14:41:17,282 INFO L226 Difference]: Without dead ends: 8434 [2021-11-19 14:41:17,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:17,297 INFO L933 BasicCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12512 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:17,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12512 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:41:17,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2021-11-19 14:41:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 8434. [2021-11-19 14:41:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8434 states, 4834 states have (on average 1.1553578816714936) internal successors, (5585), 4860 states have internal predecessors, (5585), 3479 states have call successors, (3479), 119 states have call predecessors, (3479), 118 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:41:22,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8434 states to 8434 states and 12540 transitions. [2021-11-19 14:41:22,983 INFO L78 Accepts]: Start accepts. Automaton has 8434 states and 12540 transitions. Word has length 58 [2021-11-19 14:41:22,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:22,984 INFO L470 AbstractCegarLoop]: Abstraction has 8434 states and 12540 transitions. [2021-11-19 14:41:22,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:41:22,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8434 states and 12540 transitions. [2021-11-19 14:41:22,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 14:41:22,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:22,988 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 14:41:23,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:23,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:23,213 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 14:41:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:23,214 INFO L85 PathProgramCache]: Analyzing trace with hash -655923720, now seen corresponding path program 1 times [2021-11-19 14:41:23,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:23,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963790137] [2021-11-19 14:41:23,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:23,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:23,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:23,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:23,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:41:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:24,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:24,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:41:26,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:41:27,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:27,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963790137] [2021-11-19 14:41:27,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963790137] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:27,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:27,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:27,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393653865] [2021-11-19 14:41:27,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:27,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:27,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:27,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:27,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:27,862 INFO L87 Difference]: Start difference. First operand 8434 states and 12540 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:41:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:29,101 INFO L93 Difference]: Finished difference Result 8440 states and 12545 transitions. [2021-11-19 14:41:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:29,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2021-11-19 14:41:29,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:29,178 INFO L225 Difference]: With dead ends: 8440 [2021-11-19 14:41:29,178 INFO L226 Difference]: Without dead ends: 8438 [2021-11-19 14:41:29,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:29,190 INFO L933 BasicCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12511 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:29,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12511 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:41:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2021-11-19 14:41:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 8438. [2021-11-19 14:41:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8438 states, 4837 states have (on average 1.1552615257390946) internal successors, (5588), 4863 states have internal predecessors, (5588), 3479 states have call successors, (3479), 120 states have call predecessors, (3479), 119 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:41:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8438 states to 8438 states and 12543 transitions. [2021-11-19 14:41:35,386 INFO L78 Accepts]: Start accepts. Automaton has 8438 states and 12543 transitions. Word has length 63 [2021-11-19 14:41:35,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:35,387 INFO L470 AbstractCegarLoop]: Abstraction has 8438 states and 12543 transitions. [2021-11-19 14:41:35,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:41:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 8438 states and 12543 transitions. [2021-11-19 14:41:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:41:35,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:35,391 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2021-11-19 14:41:35,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:35,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:35,617 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 14:41:35,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1754354293, now seen corresponding path program 1 times [2021-11-19 14:41:35,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:35,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709674437] [2021-11-19 14:41:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:35,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:35,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:35,626 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:35,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:41:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:37,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:37,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:41:39,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:41:40,340 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:40,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709674437] [2021-11-19 14:41:40,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709674437] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:40,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:40,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:40,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583468515] [2021-11-19 14:41:40,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:40,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:40,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:40,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:40,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:40,341 INFO L87 Difference]: Start difference. First operand 8438 states and 12543 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:41:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:41,533 INFO L93 Difference]: Finished difference Result 8444 states and 12548 transitions. [2021-11-19 14:41:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2021-11-19 14:41:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:41,600 INFO L225 Difference]: With dead ends: 8444 [2021-11-19 14:41:41,600 INFO L226 Difference]: Without dead ends: 8442 [2021-11-19 14:41:41,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:41,611 INFO L933 BasicCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12510 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:41,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12510 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:41:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2021-11-19 14:41:46,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 8442. [2021-11-19 14:41:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8442 states, 4840 states have (on average 1.1551652892561983) internal successors, (5591), 4866 states have internal predecessors, (5591), 3479 states have call successors, (3479), 121 states have call predecessors, (3479), 120 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:41:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8442 states to 8442 states and 12546 transitions. [2021-11-19 14:41:46,637 INFO L78 Accepts]: Start accepts. Automaton has 8442 states and 12546 transitions. Word has length 68 [2021-11-19 14:41:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:46,637 INFO L470 AbstractCegarLoop]: Abstraction has 8442 states and 12546 transitions. [2021-11-19 14:41:46,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:41:46,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8442 states and 12546 transitions. [2021-11-19 14:41:46,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:41:46,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:46,640 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2021-11-19 14:41:46,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:46,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:46,865 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 14:41:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:46,866 INFO L85 PathProgramCache]: Analyzing trace with hash -128892520, now seen corresponding path program 1 times [2021-11-19 14:41:46,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:46,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924917078] [2021-11-19 14:41:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:46,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:46,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:46,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:46,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:41:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:48,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:41:48,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 14:41:50,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 14:41:51,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:41:51,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924917078] [2021-11-19 14:41:51,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924917078] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:51,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:41:51,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:41:51,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479703625] [2021-11-19 14:41:51,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:41:51,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:41:51,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:41:51,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:41:51,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:41:51,757 INFO L87 Difference]: Start difference. First operand 8442 states and 12546 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 14:41:52,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:52,878 INFO L93 Difference]: Finished difference Result 8448 states and 12551 transitions. [2021-11-19 14:41:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:41:52,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2021-11-19 14:41:52,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:52,946 INFO L225 Difference]: With dead ends: 8448 [2021-11-19 14:41:52,946 INFO L226 Difference]: Without dead ends: 8446 [2021-11-19 14:41:52,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:41:52,959 INFO L933 BasicCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12509 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:52,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12509 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:41:52,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2021-11-19 14:41:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 8446. [2021-11-19 14:41:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 4843 states have (on average 1.155069172000826) internal successors, (5594), 4869 states have internal predecessors, (5594), 3479 states have call successors, (3479), 122 states have call predecessors, (3479), 121 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:41:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 12549 transitions. [2021-11-19 14:41:58,950 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 12549 transitions. Word has length 73 [2021-11-19 14:41:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:58,951 INFO L470 AbstractCegarLoop]: Abstraction has 8446 states and 12549 transitions. [2021-11-19 14:41:58,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-19 14:41:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 12549 transitions. [2021-11-19 14:41:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 14:41:58,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:58,953 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2021-11-19 14:41:59,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:59,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:41:59,169 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 14:41:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2016888171, now seen corresponding path program 1 times [2021-11-19 14:41:59,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:41:59,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600686477] [2021-11-19 14:41:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:59,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:41:59,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:41:59,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:41:59,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:42:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:01,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:01,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-19 14:42:03,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-19 14:42:04,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:04,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600686477] [2021-11-19 14:42:04,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600686477] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:04,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:42:04,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-19 14:42:04,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462175812] [2021-11-19 14:42:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:04,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:04,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:04,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:04,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:42:04,466 INFO L87 Difference]: Start difference. First operand 8446 states and 12549 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:42:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:05,883 INFO L93 Difference]: Finished difference Result 8459 states and 12559 transitions. [2021-11-19 14:42:05,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:05,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2021-11-19 14:42:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:06,019 INFO L225 Difference]: With dead ends: 8459 [2021-11-19 14:42:06,019 INFO L226 Difference]: Without dead ends: 8455 [2021-11-19 14:42:06,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:42:06,025 INFO L933 BasicCegarLoop]: 12533 mSDtfsCounter, 12465 mSDsluCounter, 25096 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12466 SdHoareTripleChecker+Valid, 37629 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:06,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12466 Valid, 37629 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:42:06,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2021-11-19 14:42:11,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 8455. [2021-11-19 14:42:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 4850 states have (on average 1.1546391752577319) internal successors, (5600), 4875 states have internal predecessors, (5600), 3479 states have call successors, (3479), 125 states have call predecessors, (3479), 123 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2021-11-19 14:42:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 12555 transitions. [2021-11-19 14:42:11,150 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 12555 transitions. Word has length 78 [2021-11-19 14:42:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:11,151 INFO L470 AbstractCegarLoop]: Abstraction has 8455 states and 12555 transitions. [2021-11-19 14:42:11,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:42:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 12555 transitions. [2021-11-19 14:42:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 14:42:11,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:11,154 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:42:11,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:11,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:42:11,377 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 14:42:11,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:11,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1666222725, now seen corresponding path program 1 times [2021-11-19 14:42:11,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:11,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686474535] [2021-11-19 14:42:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:11,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:11,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:11,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:11,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:42:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:13,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:42:13,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-19 14:42:17,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 14:42:21,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:21,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686474535] [2021-11-19 14:42:21,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686474535] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:42:21,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1476610963] [2021-11-19 14:42:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:21,227 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:42:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:42:21,229 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:42:21,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-19 14:42:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:23,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:42:23,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 14:42:26,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 14:42:28,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1476610963] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:42:28,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:42:28,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 15, 4] total 23 [2021-11-19 14:42:28,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424590160] [2021-11-19 14:42:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:42:28,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:42:28,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:42:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:42:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:42:28,760 INFO L87 Difference]: Start difference. First operand 8455 states and 12555 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 14:42:30,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:42:30,569 INFO L93 Difference]: Finished difference Result 8455 states and 12555 transitions. [2021-11-19 14:42:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:42:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2021-11-19 14:42:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:42:30,630 INFO L225 Difference]: With dead ends: 8455 [2021-11-19 14:42:30,631 INFO L226 Difference]: Without dead ends: 8307 [2021-11-19 14:42:30,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:42:30,643 INFO L933 BasicCegarLoop]: 12529 mSDtfsCounter, 12496 mSDsluCounter, 25046 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12496 SdHoareTripleChecker+Valid, 37575 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:42:30,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12496 Valid, 37575 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:42:30,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2021-11-19 14:42:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 8307. [2021-11-19 14:42:34,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8307 states, 4752 states have (on average 1.154040404040404) internal successors, (5484), 4774 states have internal predecessors, (5484), 3439 states have call successors, (3439), 114 states have call predecessors, (3439), 114 states have return successors, (3439), 3427 states have call predecessors, (3439), 3439 states have call successors, (3439) [2021-11-19 14:42:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 12362 transitions. [2021-11-19 14:42:34,929 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 12362 transitions. Word has length 93 [2021-11-19 14:42:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:42:34,929 INFO L470 AbstractCegarLoop]: Abstraction has 8307 states and 12362 transitions. [2021-11-19 14:42:34,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 14:42:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 12362 transitions. [2021-11-19 14:42:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:42:34,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:42:34,941 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:42:34,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:42:35,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-11-19 14:42:35,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:42:35,357 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 14:42:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:42:35,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1686225453, now seen corresponding path program 1 times [2021-11-19 14:42:35,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:42:35,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219488504] [2021-11-19 14:42:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:35,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:42:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:42:35,361 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:42:35,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:42:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:37,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1974 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:42:37,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-19 14:42:41,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:42:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-19 14:42:45,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:42:45,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219488504] [2021-11-19 14:42:45,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219488504] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:42:45,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [46746326] [2021-11-19 14:42:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:42:45,659 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:42:45,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:42:45,660 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:42:45,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-19 14:42:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:42:52,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1974 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:42:52,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:42:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 14:42:57,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:43:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 14:43:00,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [46746326] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:43:00,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:43:00,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [15, 15] total 23 [2021-11-19 14:43:00,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303976946] [2021-11-19 14:43:00,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:43:00,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:43:00,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:43:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:43:00,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:43:00,860 INFO L87 Difference]: Start difference. First operand 8307 states and 12362 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:43:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:43:02,165 INFO L93 Difference]: Finished difference Result 8307 states and 12362 transitions. [2021-11-19 14:43:02,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:43:02,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 166 [2021-11-19 14:43:02,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:43:02,222 INFO L225 Difference]: With dead ends: 8307 [2021-11-19 14:43:02,222 INFO L226 Difference]: Without dead ends: 8305 [2021-11-19 14:43:02,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:43:02,235 INFO L933 BasicCegarLoop]: 12354 mSDtfsCounter, 12214 mSDsluCounter, 37103 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12215 SdHoareTripleChecker+Valid, 49457 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:43:02,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12215 Valid, 49457 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:43:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2021-11-19 14:43:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 8305. [2021-11-19 14:43:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8305 states, 4751 states have (on average 1.1538623447695222) internal successors, (5482), 4772 states have internal predecessors, (5482), 3439 states have call successors, (3439), 114 states have call predecessors, (3439), 114 states have return successors, (3439), 3427 states have call predecessors, (3439), 3439 states have call successors, (3439) [2021-11-19 14:43:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8305 states to 8305 states and 12360 transitions. [2021-11-19 14:43:07,995 INFO L78 Accepts]: Start accepts. Automaton has 8305 states and 12360 transitions. Word has length 166 [2021-11-19 14:43:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:43:07,996 INFO L470 AbstractCegarLoop]: Abstraction has 8305 states and 12360 transitions. [2021-11-19 14:43:07,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:43:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8305 states and 12360 transitions. [2021-11-19 14:43:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-19 14:43:08,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:43:08,008 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:43:08,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:08,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-19 14:43:08,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:43:08,433 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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 14:43:08,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:43:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1974010187, now seen corresponding path program 1 times [2021-11-19 14:43:08,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:43:08,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651752540] [2021-11-19 14:43:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:43:08,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:43:08,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:43:08,439 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:43:08,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:43:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:43:10,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2034 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:43:10,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:43:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-19 14:43:15,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:43:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-19 14:43:19,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:43:19,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651752540] [2021-11-19 14:43:19,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651752540] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:43:19,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1409270746] [2021-11-19 14:43:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:43:19,996 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:43:19,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:43:19,997 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:43:19,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-19 14:43:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:43:27,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2034 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:43:27,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:43:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-19 14:43:29,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:43:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-19 14:43:31,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1409270746] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:43:31,705 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:43:31,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [15, 15] total 23 [2021-11-19 14:43:31,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126356180] [2021-11-19 14:43:31,706 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:43:31,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:43:31,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:43:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:43:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:43:31,707 INFO L87 Difference]: Start difference. First operand 8305 states and 12360 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-19 14:43:33,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:43:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:43:35,259 INFO L93 Difference]: Finished difference Result 8305 states and 12360 transitions. [2021-11-19 14:43:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:43:35,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 192 [2021-11-19 14:43:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:43:35,260 INFO L225 Difference]: With dead ends: 8305 [2021-11-19 14:43:35,261 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:43:35,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:43:35,330 INFO L933 BasicCegarLoop]: 12353 mSDtfsCounter, 35 mSDsluCounter, 49367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 61720 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:43:35,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 61720 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:43:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:43:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:43:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:43:35,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:43:35,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2021-11-19 14:43:35,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:43:35,337 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:43:35,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-19 14:43:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:43:35,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:43:35,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-19 14:43:35,341 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-19 14:43:35,342 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-19 14:43:35,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:35,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:43:35,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88a01447-c8f7-4a48-9dc5-c0acade1a010/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:43:35,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.