./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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 668079de19bf0a3b986283cdf2026e08e0cc89de10c7b91fb412db22c303859d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:21:34,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:21:34,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:21:34,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:21:34,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:21:34,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:21:34,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:21:34,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:21:34,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:21:34,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:21:34,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:21:34,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:21:34,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:21:34,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:21:34,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:21:34,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:21:34,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:21:34,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:21:34,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:21:34,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:21:34,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:21:34,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:21:34,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:21:34,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:21:34,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:21:34,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:21:34,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:21:34,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:21:34,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:21:34,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:21:34,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:21:34,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:21:34,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:21:34,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:21:34,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:21:34,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:21:34,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:21:34,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:21:34,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:21:34,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:21:34,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:21:34,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:21:34,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:21:34,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:21:34,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:21:34,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:21:34,332 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:21:34,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:21:34,333 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:21:34,333 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:21:34,333 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:21:34,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:21:34,334 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:21:34,334 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:21:34,334 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:21:34,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:21:34,335 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:21:34,335 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:21:34,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:21:34,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:21:34,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:21:34,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:21:34,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:21:34,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:21:34,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:21:34,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:21:34,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:21:34,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:21:34,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:21:34,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:21:34,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:34,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:21:34,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:21:34,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:21:34,340 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:21:34,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:21:34,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:21:34,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:21:34,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:21:34,341 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 668079de19bf0a3b986283cdf2026e08e0cc89de10c7b91fb412db22c303859d [2021-11-19 13:21:34,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:21:34,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:21:34,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:21:34,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:21:34,673 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:21:34,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i [2021-11-19 13:21:34,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/25a9682f8/4cb11846011a426fa48b4fb7b927dc74/FLAG0b84ea191 [2021-11-19 13:21:36,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:21:36,046 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i [2021-11-19 13:21:36,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/25a9682f8/4cb11846011a426fa48b4fb7b927dc74/FLAG0b84ea191 [2021-11-19 13:21:36,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/25a9682f8/4cb11846011a426fa48b4fb7b927dc74 [2021-11-19 13:21:36,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:21:36,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:21:36,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:36,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:21:36,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:21:36,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:36" (1/1) ... [2021-11-19 13:21:36,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68de64a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:36, skipping insertion in model container [2021-11-19 13:21:36,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:36" (1/1) ... [2021-11-19 13:21:36,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:21:36,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:39,220 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 13:21:39,247 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 13:21:39,251 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 13:21:39,262 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 13:21:39,265 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:39,268 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 13:21:39,269 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 13:21:39,271 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 13:21:39,272 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 13:21:39,293 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 13:21:39,294 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 13:21:39,325 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 13:21:39,363 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 13:21:39,366 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 13:21:39,425 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 13:21:39,428 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 13:21:39,433 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 13:21:39,435 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 13:21:39,437 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 13:21:39,439 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 13:21:39,462 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 13:21:39,478 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 13:21:39,506 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 13:21:39,527 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 13:21:39,579 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 13:21:39,580 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 13:21:39,584 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 13:21:39,629 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 13:21:39,632 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 13:21:39,641 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 13:21:39,648 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 13:21:39,678 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 13:21:39,680 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 13:21:39,681 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 13:21:39,682 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 13:21:39,702 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 13:21:39,706 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 13:21:39,735 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 13:21:39,741 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 13:21:39,748 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 13:21:40,720 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 13:21:40,721 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 13:21:40,722 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 13:21:40,729 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 13:21:41,306 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 13:21:41,648 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 13:21:41,650 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 13:21:41,652 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 13:21:41,654 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 13:21:41,658 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 13:21:41,658 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 13:21:41,659 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 13:21:41,661 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 13:21:41,662 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 13:21:41,664 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 13:21:41,665 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 13:21:41,666 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 13:21:41,860 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 13:21:41,862 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 13:21:41,909 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 13:21:41,910 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 13:21:41,917 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 13:21:41,918 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 13:21:42,039 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 13:21:42,041 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 13:21:42,058 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 13:21:42,067 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 13:21:42,068 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 13:21:42,091 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 13:21:42,093 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 13:21:42,094 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 13:21:42,102 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 13:21:42,104 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 13:21:42,244 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:42,245 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 13:21:42,259 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 13:21:42,260 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 13:21:42,261 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 13:21:42,276 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 13:21:42,276 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 13:21:42,277 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 13:21:42,278 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 13:21:42,285 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:42,285 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:42,286 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:21:44,182 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575119,575132] [2021-11-19 13:21:44,185 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575264,575277] [2021-11-19 13:21:44,186 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575410,575423] [2021-11-19 13:21:44,186 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575575,575588] [2021-11-19 13:21:44,187 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575733,575746] [2021-11-19 13:21:44,188 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575891,575904] [2021-11-19 13:21:44,188 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576049,576062] [2021-11-19 13:21:44,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576209,576222] [2021-11-19 13:21:44,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576368,576381] [2021-11-19 13:21:44,190 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576507,576520] [2021-11-19 13:21:44,190 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576649,576662] [2021-11-19 13:21:44,191 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576798,576811] [2021-11-19 13:21:44,191 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576937,576950] [2021-11-19 13:21:44,192 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577092,577105] [2021-11-19 13:21:44,192 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577252,577265] [2021-11-19 13:21:44,193 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577403,577416] [2021-11-19 13:21:44,193 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577554,577567] [2021-11-19 13:21:44,194 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577706,577719] [2021-11-19 13:21:44,194 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577855,577868] [2021-11-19 13:21:44,195 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578003,578016] [2021-11-19 13:21:44,195 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578160,578173] [2021-11-19 13:21:44,196 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578309,578322] [2021-11-19 13:21:44,197 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578465,578478] [2021-11-19 13:21:44,197 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578618,578631] [2021-11-19 13:21:44,198 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578764,578777] [2021-11-19 13:21:44,198 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578907,578920] [2021-11-19 13:21:44,198 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579059,579072] [2021-11-19 13:21:44,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579205,579218] [2021-11-19 13:21:44,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579350,579363] [2021-11-19 13:21:44,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579504,579517] [2021-11-19 13:21:44,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579655,579668] [2021-11-19 13:21:44,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579810,579823] [2021-11-19 13:21:44,202 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579962,579975] [2021-11-19 13:21:44,202 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580117,580130] [2021-11-19 13:21:44,203 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580281,580294] [2021-11-19 13:21:44,203 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580437,580450] [2021-11-19 13:21:44,204 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580601,580614] [2021-11-19 13:21:44,204 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580743,580756] [2021-11-19 13:21:44,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580901,580914] [2021-11-19 13:21:44,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581068,581081] [2021-11-19 13:21:44,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581227,581240] [2021-11-19 13:21:44,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581386,581399] [2021-11-19 13:21:44,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581535,581548] [2021-11-19 13:21:44,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581682,581695] [2021-11-19 13:21:44,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581821,581834] [2021-11-19 13:21:44,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581984,581997] [2021-11-19 13:21:44,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582150,582163] [2021-11-19 13:21:44,209 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582314,582327] [2021-11-19 13:21:44,209 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582479,582492] [2021-11-19 13:21:44,210 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582644,582657] [2021-11-19 13:21:44,210 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582810,582823] [2021-11-19 13:21:44,211 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582975,582988] [2021-11-19 13:21:44,211 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583142,583155] [2021-11-19 13:21:44,212 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583302,583315] [2021-11-19 13:21:44,212 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583464,583477] [2021-11-19 13:21:44,213 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583623,583636] [2021-11-19 13:21:44,213 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583769,583782] [2021-11-19 13:21:44,214 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583912,583925] [2021-11-19 13:21:44,214 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584056,584069] [2021-11-19 13:21:44,215 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584199,584212] [2021-11-19 13:21:44,216 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584343,584356] [2021-11-19 13:21:44,216 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584484,584497] [2021-11-19 13:21:44,217 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584622,584635] [2021-11-19 13:21:44,217 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584780,584793] [2021-11-19 13:21:44,218 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584939,584952] [2021-11-19 13:21:44,218 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585095,585108] [2021-11-19 13:21:44,219 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585244,585257] [2021-11-19 13:21:44,219 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585396,585409] [2021-11-19 13:21:44,220 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585547,585560] [2021-11-19 13:21:44,220 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585696,585709] [2021-11-19 13:21:44,220 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585848,585861] [2021-11-19 13:21:44,221 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585996,586009] [2021-11-19 13:21:44,222 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586149,586162] [2021-11-19 13:21:44,222 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586300,586313] [2021-11-19 13:21:44,222 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586450,586463] [2021-11-19 13:21:44,223 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586597,586610] [2021-11-19 13:21:44,223 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586748,586761] [2021-11-19 13:21:44,224 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586899,586912] [2021-11-19 13:21:44,224 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587047,587060] [2021-11-19 13:21:44,225 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587213,587226] [2021-11-19 13:21:44,225 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587382,587395] [2021-11-19 13:21:44,226 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587549,587562] [2021-11-19 13:21:44,226 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587717,587730] [2021-11-19 13:21:44,227 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587867,587880] [2021-11-19 13:21:44,227 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588014,588027] [2021-11-19 13:21:44,228 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588175,588188] [2021-11-19 13:21:44,228 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588345,588358] [2021-11-19 13:21:44,229 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588507,588520] [2021-11-19 13:21:44,250 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:44,308 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 13:21:44,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29d6ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:44, skipping insertion in model container [2021-11-19 13:21:44,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:44,311 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:21:44,317 INFO L158 Benchmark]: Toolchain (without parser) took 7666.77ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 67.0MB in the beginning and 61.4MB in the end (delta: 5.6MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2021-11-19 13:21:44,318 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:21:44,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7663.83ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 66.7MB in the beginning and 61.4MB in the end (delta: 5.3MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2021-11-19 13:21:44,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7663.83ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 66.7MB in the beginning and 61.4MB in the end (delta: 5.3MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4849]: 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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 668079de19bf0a3b986283cdf2026e08e0cc89de10c7b91fb412db22c303859d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:21:46,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:21:46,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:21:46,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:21:46,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:21:46,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:21:46,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:21:46,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:21:46,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:21:46,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:21:46,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:21:46,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:21:46,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:21:46,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:21:46,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:21:46,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:21:46,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:21:46,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:21:46,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:21:46,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:21:46,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:21:46,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:21:46,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:21:46,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:21:46,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:21:46,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:21:46,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:21:46,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:21:46,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:21:46,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:21:46,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:21:46,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:21:46,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:21:46,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:21:46,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:21:46,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:21:46,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:21:46,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:21:46,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:21:46,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:21:46,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:21:46,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:21:46,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:21:46,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:21:46,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:21:46,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:21:46,882 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:21:46,882 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:21:46,882 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:21:46,882 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:21:46,883 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:21:46,883 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:21:46,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:21:46,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:21:46,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:21:46,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:21:46,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:21:46,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:21:46,885 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:21:46,885 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:21:46,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:21:46,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:21:46,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:21:46,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:21:46,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:21:46,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:21:46,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:46,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:21:46,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:21:46,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:21:46,887 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:21:46,888 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:21:46,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:21:46,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:21:46,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:21:46,888 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 668079de19bf0a3b986283cdf2026e08e0cc89de10c7b91fb412db22c303859d [2021-11-19 13:21:47,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:21:47,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:21:47,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:21:47,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:21:47,334 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:21:47,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i [2021-11-19 13:21:47,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/978b29194/481c0b79dfcd41b8a0ae4d7f3f5684a7/FLAG6e6f698f7 [2021-11-19 13:21:48,594 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:21:48,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i [2021-11-19 13:21:48,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/978b29194/481c0b79dfcd41b8a0ae4d7f3f5684a7/FLAG6e6f698f7 [2021-11-19 13:21:48,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/data/978b29194/481c0b79dfcd41b8a0ae4d7f3f5684a7 [2021-11-19 13:21:48,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:21:48,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:21:48,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:48,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:21:48,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:21:48,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:48" (1/1) ... [2021-11-19 13:21:48,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d315d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:48, skipping insertion in model container [2021-11-19 13:21:48,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:21:48" (1/1) ... [2021-11-19 13:21:48,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:21:49,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:56,091 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575119,575132] [2021-11-19 13:21:56,094 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575264,575277] [2021-11-19 13:21:56,095 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575410,575423] [2021-11-19 13:21:56,096 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575575,575588] [2021-11-19 13:21:56,096 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575733,575746] [2021-11-19 13:21:56,097 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575891,575904] [2021-11-19 13:21:56,097 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576049,576062] [2021-11-19 13:21:56,098 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576209,576222] [2021-11-19 13:21:56,098 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576368,576381] [2021-11-19 13:21:56,099 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576507,576520] [2021-11-19 13:21:56,099 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576649,576662] [2021-11-19 13:21:56,100 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576798,576811] [2021-11-19 13:21:56,100 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576937,576950] [2021-11-19 13:21:56,101 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577092,577105] [2021-11-19 13:21:56,101 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577252,577265] [2021-11-19 13:21:56,102 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577403,577416] [2021-11-19 13:21:56,102 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577554,577567] [2021-11-19 13:21:56,103 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577706,577719] [2021-11-19 13:21:56,104 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577855,577868] [2021-11-19 13:21:56,104 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578003,578016] [2021-11-19 13:21:56,105 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578160,578173] [2021-11-19 13:21:56,105 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578309,578322] [2021-11-19 13:21:56,106 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578465,578478] [2021-11-19 13:21:56,106 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578618,578631] [2021-11-19 13:21:56,107 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578764,578777] [2021-11-19 13:21:56,107 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578907,578920] [2021-11-19 13:21:56,108 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579059,579072] [2021-11-19 13:21:56,108 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579205,579218] [2021-11-19 13:21:56,109 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579350,579363] [2021-11-19 13:21:56,109 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579504,579517] [2021-11-19 13:21:56,110 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579655,579668] [2021-11-19 13:21:56,110 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579810,579823] [2021-11-19 13:21:56,111 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579962,579975] [2021-11-19 13:21:56,111 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580117,580130] [2021-11-19 13:21:56,112 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580281,580294] [2021-11-19 13:21:56,112 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580437,580450] [2021-11-19 13:21:56,113 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580601,580614] [2021-11-19 13:21:56,114 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580743,580756] [2021-11-19 13:21:56,114 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580901,580914] [2021-11-19 13:21:56,115 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581068,581081] [2021-11-19 13:21:56,115 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581227,581240] [2021-11-19 13:21:56,116 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581386,581399] [2021-11-19 13:21:56,129 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581535,581548] [2021-11-19 13:21:56,129 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581682,581695] [2021-11-19 13:21:56,130 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581821,581834] [2021-11-19 13:21:56,130 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581984,581997] [2021-11-19 13:21:56,131 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582150,582163] [2021-11-19 13:21:56,131 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582314,582327] [2021-11-19 13:21:56,132 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582479,582492] [2021-11-19 13:21:56,132 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582644,582657] [2021-11-19 13:21:56,133 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582810,582823] [2021-11-19 13:21:56,133 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582975,582988] [2021-11-19 13:21:56,134 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583142,583155] [2021-11-19 13:21:56,134 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583302,583315] [2021-11-19 13:21:56,135 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583464,583477] [2021-11-19 13:21:56,135 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583623,583636] [2021-11-19 13:21:56,136 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583769,583782] [2021-11-19 13:21:56,136 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583912,583925] [2021-11-19 13:21:56,137 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584056,584069] [2021-11-19 13:21:56,137 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584199,584212] [2021-11-19 13:21:56,138 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584343,584356] [2021-11-19 13:21:56,138 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584484,584497] [2021-11-19 13:21:56,139 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584622,584635] [2021-11-19 13:21:56,139 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584780,584793] [2021-11-19 13:21:56,140 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584939,584952] [2021-11-19 13:21:56,140 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585095,585108] [2021-11-19 13:21:56,141 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585244,585257] [2021-11-19 13:21:56,141 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585396,585409] [2021-11-19 13:21:56,142 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585547,585560] [2021-11-19 13:21:56,152 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585696,585709] [2021-11-19 13:21:56,152 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585848,585861] [2021-11-19 13:21:56,153 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585996,586009] [2021-11-19 13:21:56,153 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586149,586162] [2021-11-19 13:21:56,154 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586300,586313] [2021-11-19 13:21:56,154 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586450,586463] [2021-11-19 13:21:56,155 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586597,586610] [2021-11-19 13:21:56,155 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586748,586761] [2021-11-19 13:21:56,156 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586899,586912] [2021-11-19 13:21:56,156 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587047,587060] [2021-11-19 13:21:56,157 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587213,587226] [2021-11-19 13:21:56,157 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587382,587395] [2021-11-19 13:21:56,158 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587549,587562] [2021-11-19 13:21:56,158 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587717,587730] [2021-11-19 13:21:56,159 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587867,587880] [2021-11-19 13:21:56,159 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588014,588027] [2021-11-19 13:21:56,160 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588175,588188] [2021-11-19 13:21:56,160 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588345,588358] [2021-11-19 13:21:56,161 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588507,588520] [2021-11-19 13:21:56,187 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:56,267 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:21:56,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:21:56,930 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575119,575132] [2021-11-19 13:21:56,931 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575264,575277] [2021-11-19 13:21:56,932 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575410,575423] [2021-11-19 13:21:56,932 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575575,575588] [2021-11-19 13:21:56,933 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575733,575746] [2021-11-19 13:21:56,934 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575891,575904] [2021-11-19 13:21:56,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576049,576062] [2021-11-19 13:21:56,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576209,576222] [2021-11-19 13:21:56,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576368,576381] [2021-11-19 13:21:56,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576507,576520] [2021-11-19 13:21:56,937 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576649,576662] [2021-11-19 13:21:56,937 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576798,576811] [2021-11-19 13:21:56,939 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576937,576950] [2021-11-19 13:21:56,940 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577092,577105] [2021-11-19 13:21:56,941 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577252,577265] [2021-11-19 13:21:56,941 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577403,577416] [2021-11-19 13:21:56,942 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577554,577567] [2021-11-19 13:21:56,942 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577706,577719] [2021-11-19 13:21:56,943 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577855,577868] [2021-11-19 13:21:56,944 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578003,578016] [2021-11-19 13:21:56,945 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578160,578173] [2021-11-19 13:21:56,946 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578309,578322] [2021-11-19 13:21:56,947 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578465,578478] [2021-11-19 13:21:56,947 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578618,578631] [2021-11-19 13:21:56,948 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578764,578777] [2021-11-19 13:21:56,948 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578907,578920] [2021-11-19 13:21:56,949 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579059,579072] [2021-11-19 13:21:56,949 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579205,579218] [2021-11-19 13:21:56,950 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579350,579363] [2021-11-19 13:21:56,950 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579504,579517] [2021-11-19 13:21:56,952 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579655,579668] [2021-11-19 13:21:56,952 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579810,579823] [2021-11-19 13:21:56,953 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579962,579975] [2021-11-19 13:21:56,953 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580117,580130] [2021-11-19 13:21:56,954 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580281,580294] [2021-11-19 13:21:56,954 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580437,580450] [2021-11-19 13:21:56,956 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580601,580614] [2021-11-19 13:21:56,957 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580743,580756] [2021-11-19 13:21:56,957 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580901,580914] [2021-11-19 13:21:56,958 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581068,581081] [2021-11-19 13:21:56,959 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581227,581240] [2021-11-19 13:21:56,959 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581386,581399] [2021-11-19 13:21:56,960 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581535,581548] [2021-11-19 13:21:56,961 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581682,581695] [2021-11-19 13:21:56,962 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581821,581834] [2021-11-19 13:21:56,963 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581984,581997] [2021-11-19 13:21:56,963 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582150,582163] [2021-11-19 13:21:56,964 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582314,582327] [2021-11-19 13:21:56,969 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582479,582492] [2021-11-19 13:21:56,970 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582644,582657] [2021-11-19 13:21:56,970 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582810,582823] [2021-11-19 13:21:56,971 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582975,582988] [2021-11-19 13:21:56,972 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583142,583155] [2021-11-19 13:21:56,972 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583302,583315] [2021-11-19 13:21:56,972 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583464,583477] [2021-11-19 13:21:56,973 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583623,583636] [2021-11-19 13:21:56,973 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583769,583782] [2021-11-19 13:21:56,975 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583912,583925] [2021-11-19 13:21:56,976 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584056,584069] [2021-11-19 13:21:56,977 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584199,584212] [2021-11-19 13:21:56,980 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584343,584356] [2021-11-19 13:21:56,981 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584484,584497] [2021-11-19 13:21:56,982 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584622,584635] [2021-11-19 13:21:56,982 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584780,584793] [2021-11-19 13:21:56,983 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584939,584952] [2021-11-19 13:21:56,984 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585095,585108] [2021-11-19 13:21:56,984 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585244,585257] [2021-11-19 13:21:56,985 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585396,585409] [2021-11-19 13:21:56,985 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585547,585560] [2021-11-19 13:21:56,991 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585696,585709] [2021-11-19 13:21:56,992 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585848,585861] [2021-11-19 13:21:56,992 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585996,586009] [2021-11-19 13:21:56,993 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586149,586162] [2021-11-19 13:21:56,993 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586300,586313] [2021-11-19 13:21:56,993 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586450,586463] [2021-11-19 13:21:56,994 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586597,586610] [2021-11-19 13:21:56,994 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586748,586761] [2021-11-19 13:21:56,994 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586899,586912] [2021-11-19 13:21:56,996 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587047,587060] [2021-11-19 13:21:56,997 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587213,587226] [2021-11-19 13:21:56,997 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587382,587395] [2021-11-19 13:21:56,999 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587549,587562] [2021-11-19 13:21:56,999 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587717,587730] [2021-11-19 13:21:56,999 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587867,587880] [2021-11-19 13:21:57,000 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588014,588027] [2021-11-19 13:21:57,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588175,588188] [2021-11-19 13:21:57,002 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588345,588358] [2021-11-19 13:21:57,002 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588507,588520] [2021-11-19 13:21:57,012 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:57,061 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:21:57,723 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575119,575132] [2021-11-19 13:21:57,723 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575264,575277] [2021-11-19 13:21:57,724 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575410,575423] [2021-11-19 13:21:57,724 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575575,575588] [2021-11-19 13:21:57,725 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575733,575746] [2021-11-19 13:21:57,725 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[575891,575904] [2021-11-19 13:21:57,725 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576049,576062] [2021-11-19 13:21:57,726 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576209,576222] [2021-11-19 13:21:57,726 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576368,576381] [2021-11-19 13:21:57,726 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576507,576520] [2021-11-19 13:21:57,727 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576649,576662] [2021-11-19 13:21:57,727 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576798,576811] [2021-11-19 13:21:57,727 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[576937,576950] [2021-11-19 13:21:57,728 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577092,577105] [2021-11-19 13:21:57,728 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577252,577265] [2021-11-19 13:21:57,728 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577403,577416] [2021-11-19 13:21:57,729 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577554,577567] [2021-11-19 13:21:57,729 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577706,577719] [2021-11-19 13:21:57,730 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[577855,577868] [2021-11-19 13:21:57,730 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578003,578016] [2021-11-19 13:21:57,730 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578160,578173] [2021-11-19 13:21:57,731 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578309,578322] [2021-11-19 13:21:57,731 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578465,578478] [2021-11-19 13:21:57,731 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578618,578631] [2021-11-19 13:21:57,732 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578764,578777] [2021-11-19 13:21:57,732 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[578907,578920] [2021-11-19 13:21:57,733 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579059,579072] [2021-11-19 13:21:57,733 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579205,579218] [2021-11-19 13:21:57,733 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579350,579363] [2021-11-19 13:21:57,734 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579504,579517] [2021-11-19 13:21:57,734 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579655,579668] [2021-11-19 13:21:57,734 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579810,579823] [2021-11-19 13:21:57,735 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[579962,579975] [2021-11-19 13:21:57,735 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580117,580130] [2021-11-19 13:21:57,736 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580281,580294] [2021-11-19 13:21:57,736 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580437,580450] [2021-11-19 13:21:57,736 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580601,580614] [2021-11-19 13:21:57,737 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580743,580756] [2021-11-19 13:21:57,737 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[580901,580914] [2021-11-19 13:21:57,737 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581068,581081] [2021-11-19 13:21:57,738 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581227,581240] [2021-11-19 13:21:57,738 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581386,581399] [2021-11-19 13:21:57,738 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581535,581548] [2021-11-19 13:21:57,739 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581682,581695] [2021-11-19 13:21:57,739 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581821,581834] [2021-11-19 13:21:57,739 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[581984,581997] [2021-11-19 13:21:57,740 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582150,582163] [2021-11-19 13:21:57,740 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582314,582327] [2021-11-19 13:21:57,741 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582479,582492] [2021-11-19 13:21:57,741 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582644,582657] [2021-11-19 13:21:57,741 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582810,582823] [2021-11-19 13:21:57,742 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[582975,582988] [2021-11-19 13:21:57,742 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583142,583155] [2021-11-19 13:21:57,743 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583302,583315] [2021-11-19 13:21:57,743 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583464,583477] [2021-11-19 13:21:57,743 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583623,583636] [2021-11-19 13:21:57,744 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583769,583782] [2021-11-19 13:21:57,744 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[583912,583925] [2021-11-19 13:21:57,744 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584056,584069] [2021-11-19 13:21:57,745 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584199,584212] [2021-11-19 13:21:57,745 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584343,584356] [2021-11-19 13:21:57,745 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584484,584497] [2021-11-19 13:21:57,746 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584622,584635] [2021-11-19 13:21:57,747 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584780,584793] [2021-11-19 13:21:57,748 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[584939,584952] [2021-11-19 13:21:57,748 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585095,585108] [2021-11-19 13:21:57,748 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585244,585257] [2021-11-19 13:21:57,749 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585396,585409] [2021-11-19 13:21:57,749 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585547,585560] [2021-11-19 13:21:57,749 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585696,585709] [2021-11-19 13:21:57,750 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585848,585861] [2021-11-19 13:21:57,750 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[585996,586009] [2021-11-19 13:21:57,750 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586149,586162] [2021-11-19 13:21:57,751 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586300,586313] [2021-11-19 13:21:57,751 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586450,586463] [2021-11-19 13:21:57,752 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586597,586610] [2021-11-19 13:21:57,752 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586748,586761] [2021-11-19 13:21:57,768 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[586899,586912] [2021-11-19 13:21:57,769 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587047,587060] [2021-11-19 13:21:57,774 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587213,587226] [2021-11-19 13:21:57,781 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587382,587395] [2021-11-19 13:21:57,781 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587549,587562] [2021-11-19 13:21:57,782 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587717,587730] [2021-11-19 13:21:57,782 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[587867,587880] [2021-11-19 13:21:57,782 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588014,588027] [2021-11-19 13:21:57,783 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588175,588188] [2021-11-19 13:21:57,783 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588345,588358] [2021-11-19 13:21:57,783 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_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i[588507,588520] [2021-11-19 13:21:57,792 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:21:58,393 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:21:58,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58 WrapperNode [2021-11-19 13:21:58,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:21:58,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:58,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:21:58,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:21:58,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:58,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:58,939 INFO L137 Inliner]: procedures = 892, calls = 4922, calls flagged for inlining = 458, calls inlined = 375, statements flattened = 11503 [2021-11-19 13:21:58,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:21:58,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:21:58,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:21:58,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:21:58,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:58,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:21:59,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:21:59,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:21:59,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:21:59,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (1/1) ... [2021-11-19 13:21:59,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:21:59,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:21:59,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:21:59,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:21:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_export_device [2021-11-19 13:21:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_export_device [2021-11-19 13:21:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_vpci_dev_data [2021-11-19 13:21:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_vpci_dev_data [2021-11-19 13:21:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock___0 [2021-11-19 13:21:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock___0 [2021-11-19 13:21:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure HYPERVISOR_physdev_op [2021-11-19 13:21:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure HYPERVISOR_physdev_op [2021-11-19 13:21:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure read_dev_bar [2021-11-19 13:21:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure read_dev_bar [2021-11-19 13:21:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2021-11-19 13:21:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2021-11-19 13:21:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:21:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:21:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_get_pci_dev [2021-11-19 13:21:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_get_pci_dev [2021-11-19 13:21:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:21:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:21:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_write_config_byte [2021-11-19 13:21:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_write_config_byte [2021-11-19 13:21:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_remove [2021-11-19 13:21:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_remove [2021-11-19 13:21:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:21:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:21:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 13:21:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 13:21:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_dev_lock_of_xen_pcibk_device [2021-11-19 13:21:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_dev_lock_of_xen_pcibk_device [2021-11-19 13:21:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_control_isr [2021-11-19 13:21:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_control_isr [2021-11-19 13:21:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure vpd_address_write [2021-11-19 13:21:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vpd_address_write [2021-11-19 13:21:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:21:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:21:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure valid_request [2021-11-19 13:21:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_request [2021-11-19 13:21:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_release_devices___0 [2021-11-19 13:21:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_release_devices___0 [2021-11-19 13:21:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 13:21:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 13:21:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure rom_write [2021-11-19 13:21:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure rom_write [2021-11-19 13:21:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-19 13:21:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-19 13:21:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_read_config_byte [2021-11-19 13:21:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_read_config_byte [2021-11-19 13:21:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:21:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:21:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:21:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:21:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2021-11-19 13:21:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2021-11-19 13:21:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:21:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:21:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_xenbus_remove [2021-11-19 13:21:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_xenbus_remove [2021-11-19 13:21:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:21:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:21:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:21:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:21:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock___0 [2021-11-19 13:21:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock___0 [2021-11-19 13:21:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_get [2021-11-19 13:21:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_get [2021-11-19 13:21:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:21:59,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:21:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:21:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:21:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-19 13:21:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-19 13:21:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_add_fields [2021-11-19 13:21:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_add_fields [2021-11-19 13:21:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-19 13:21:59,641 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-19 13:21:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:21:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:21:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2021-11-19 13:21:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2021-11-19 13:21:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:21:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 13:21:59,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 13:21:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:21:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:21:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:21:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:21:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-19 13:21:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-19 13:21:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-19 13:21:59,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-19 13:21:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2021-11-19 13:21:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2021-11-19 13:21:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure pm_ctrl_init [2021-11-19 13:21:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_ctrl_init [2021-11-19 13:21:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_release [2021-11-19 13:21:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_release [2021-11-19 13:21:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 13:21:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 13:21:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:21:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:21:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_disconnect [2021-11-19 13:21:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_disconnect [2021-11-19 13:21:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_read_config_dword [2021-11-19 13:21:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_read_config_dword [2021-11-19 13:21:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 13:21:59,645 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 13:21:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:21:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:21:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_handle_event [2021-11-19 13:21:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_handle_event [2021-11-19 13:21:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_read [2021-11-19 13:21:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_read [2021-11-19 13:21:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2021-11-19 13:21:59,646 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2021-11-19 13:21:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_init_devices [2021-11-19 13:21:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_init_devices [2021-11-19 13:21:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:21:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:21:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_publish_pci_roots [2021-11-19 13:21:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_publish_pci_roots [2021-11-19 13:21:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_free_dev [2021-11-19 13:21:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_free_dev [2021-11-19 13:21:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:21:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:21:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_init_device [2021-11-19 13:21:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_init_device [2021-11-19 13:21:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 13:21:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 13:21:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:21:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:21:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:21:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:21:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:21:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:21:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:21:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-11-19 13:21:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-11-19 13:21:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure kill_domain_by_device [2021-11-19 13:21:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_domain_by_device [2021-11-19 13:21:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:21:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure xen_find_device_domain_owner [2021-11-19 13:21:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_find_device_domain_owner [2021-11-19 13:21:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure permissive_add [2021-11-19 13:21:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure permissive_add [2021-11-19 13:21:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_read_config_word [2021-11-19 13:21:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_read_config_word [2021-11-19 13:21:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 13:21:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 13:21:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:21:59,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:21:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure bar_init [2021-11-19 13:21:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bar_init [2021-11-19 13:21:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_dev_lock_of_xen_pcibk_device [2021-11-19 13:21:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_dev_lock_of_xen_pcibk_device [2021-11-19 13:21:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_add_field_offset [2021-11-19 13:21:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_add_field_offset [2021-11-19 13:21:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:21:59,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:21:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-19 13:21:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-19 13:21:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:21:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:21:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-19 13:21:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-19 13:21:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:21:59,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:21:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:21:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:21:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:21:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:21:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:21:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:21:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:21:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 13:21:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:21:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:21:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:21:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-19 13:21:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-19 13:21:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_pcistub_devices_lock [2021-11-19 13:21:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_pcistub_devices_lock [2021-11-19 13:21:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure register_capability [2021-11-19 13:21:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure register_capability [2021-11-19 13:21:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-19 13:21:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-19 13:21:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_mask [2021-11-19 13:21:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mask [2021-11-19 13:21:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_error_resume [2021-11-19 13:21:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_error_resume [2021-11-19 13:21:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_domain_nr [2021-11-19 13:21:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_domain_nr [2021-11-19 13:21:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure pm_ctrl_write [2021-11-19 13:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_ctrl_write [2021-11-19 13:21:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_add_pci_dev [2021-11-19 13:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_add_pci_dev [2021-11-19 13:21:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_98 [2021-11-19 13:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_98 [2021-11-19 13:21:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_pcistub_device [2021-11-19 13:21:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_pcistub_device [2021-11-19 13:21:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_passthrough_dev_data [2021-11-19 13:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_passthrough_dev_data [2021-11-19 13:21:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:21:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:21:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_setup_backend [2021-11-19 13:21:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_setup_backend [2021-11-19 13:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2021-11-19 13:21:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2021-11-19 13:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-11-19 13:21:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-11-19 13:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:21:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-19 13:21:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-19 13:21:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_attach [2021-11-19 13:21:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_attach [2021-11-19 13:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibios_err_to_errno [2021-11-19 13:21:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibios_err_to_errno [2021-11-19 13:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_id_add [2021-11-19 13:21:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_id_add [2021-11-19 13:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_get_pci_dev [2021-11-19 13:21:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_get_pci_dev [2021-11-19 13:21:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:21:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:21:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:21:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:21:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:21:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:21:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:21:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:21:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_add_field [2021-11-19 13:21:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_add_field [2021-11-19 13:21:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:21:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure bar_release [2021-11-19 13:21:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bar_release [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_find [2021-11-19 13:21:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_find [2021-11-19 13:21:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 13:21:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 13:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure xen_register_device_domain_owner [2021-11-19 13:21:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_register_device_domain_owner [2021-11-19 13:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-19 13:21:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-19 13:21:59,666 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-19 13:21:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-19 13:21:59,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:21:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:21:59,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 13:21:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 13:21:59,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:21:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:21:59,667 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_xenbus_probe [2021-11-19 13:21:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_xenbus_probe [2021-11-19 13:21:59,667 INFO L130 BoogieDeclarations]: Found specification of procedure bar_read [2021-11-19 13:21:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bar_read [2021-11-19 13:21:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:21:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:21:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:21:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:21:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read_driver_state [2021-11-19 13:21:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read_driver_state [2021-11-19 13:21:59,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:21:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:21:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_release_pci_dev [2021-11-19 13:21:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_release_pci_dev [2021-11-19 13:21:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-19 13:21:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-19 13:21:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-19 13:21:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-19 13:21:59,669 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 13:21:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 13:21:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_reset_function_locked [2021-11-19 13:21:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_reset_function_locked [2021-11-19 13:21:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:21:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:21:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:21:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:21:59,670 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_probe [2021-11-19 13:21:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_probe [2021-11-19 13:21:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:21:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:21:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_get_pcifront_dev [2021-11-19 13:21:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_get_pcifront_dev [2021-11-19 13:21:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_read_vendor [2021-11-19 13:21:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_read_vendor [2021-11-19 13:21:59,671 INFO L130 BoogieDeclarations]: Found specification of procedure interrupt_read [2021-11-19 13:21:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure interrupt_read [2021-11-19 13:21:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:21:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:21:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-19 13:21:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-19 13:21:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_put [2021-11-19 13:21:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_put [2021-11-19 13:21:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:21:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-19 13:21:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-19 13:21:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:21:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_put_pci_dev [2021-11-19 13:21:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_put_pci_dev [2021-11-19 13:21:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:21:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:21:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:21:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:21:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:21:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:21:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-19 13:21:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-19 13:21:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_vpci_dev_data [2021-11-19 13:21:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_vpci_dev_data [2021-11-19 13:21:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure bist_write [2021-11-19 13:21:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bist_write [2021-11-19 13:21:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-19 13:21:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-19 13:21:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_device [2021-11-19 13:21:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_device [2021-11-19 13:21:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_free_dyn_fields [2021-11-19 13:21:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_free_dyn_fields [2021-11-19 13:21:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_device_domain_owner [2021-11-19 13:21:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_device_domain_owner [2021-11-19 13:21:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-19 13:21:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-19 13:21:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pirq_from_irq [2021-11-19 13:21:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pirq_from_irq [2021-11-19 13:21:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure __xen_pcibk_release_devices [2021-11-19 13:21:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __xen_pcibk_release_devices [2021-11-19 13:21:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure command_read [2021-11-19 13:21:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure command_read [2021-11-19 13:21:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_passthrough_dev_data [2021-11-19 13:21:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_passthrough_dev_data [2021-11-19 13:21:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure merge_value [2021-11-19 13:21:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_value [2021-11-19 13:21:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-19 13:21:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-19 13:21:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:21:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:21:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-19 13:21:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:21:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_be_watch [2021-11-19 13:21:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_be_watch [2021-11-19 13:21:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-19 13:21:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-19 13:21:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:21:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:21:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_irq_handler_show [2021-11-19 13:21:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_irq_handler_show [2021-11-19 13:21:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:21:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:21:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure common_process [2021-11-19 13:21:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure common_process [2021-11-19 13:21:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure str_to_slot [2021-11-19 13:21:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure str_to_slot [2021-11-19 13:21:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_exit [2021-11-19 13:21:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_exit [2021-11-19 13:21:59,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:21:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 13:21:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_read_device [2021-11-19 13:21:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_read_device [2021-11-19 13:21:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:21:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:21:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:21:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:21:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:21:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:21:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:21:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:21:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure pcistub_device_get_pci_dev [2021-11-19 13:21:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pcistub_device_get_pci_dev [2021-11-19 13:21:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_reset_device [2021-11-19 13:21:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_reset_device [2021-11-19 13:21:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_test_and_schedule_op [2021-11-19 13:21:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_test_and_schedule_op [2021-11-19 13:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:21:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure rom_init [2021-11-19 13:21:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure rom_init [2021-11-19 13:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_config_add_fields_offset [2021-11-19 13:21:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_config_add_fields_offset [2021-11-19 13:21:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_device [2021-11-19 13:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_device [2021-11-19 13:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_ids_lock [2021-11-19 13:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_ids_lock [2021-11-19 13:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure bar_reset [2021-11-19 13:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bar_reset [2021-11-19 13:21:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:21:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:21:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_enabled [2021-11-19 13:21:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_enabled [2021-11-19 13:21:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure xen_pcibk_publish_pci_roots [2021-11-19 13:21:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_pcibk_publish_pci_roots [2021-11-19 13:21:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure pm_caps_read [2021-11-19 13:21:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_caps_read [2021-11-19 13:22:01,358 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:22:01,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:22:03,852 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:23:08,843 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:23:08,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:23:08,875 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 13:23:08,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:23:08 BoogieIcfgContainer [2021-11-19 13:23:08,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:23:08,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:23:08,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:23:08,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:23:08,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:21:48" (1/3) ... [2021-11-19 13:23:08,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2be04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:23:08, skipping insertion in model container [2021-11-19 13:23:08,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:21:58" (2/3) ... [2021-11-19 13:23:08,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2be04b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:23:08, skipping insertion in model container [2021-11-19 13:23:08,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:23:08" (3/3) ... [2021-11-19 13:23:08,892 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--xen--xen-pciback--xen-pciback.ko.cil.i [2021-11-19 13:23:08,897 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:23:08,897 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-19 13:23:08,996 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:23:09,002 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 13:23:09,002 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-19 13:23:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 3668 states, 2462 states have (on average 1.3058489033306255) internal successors, (3215), 2602 states have internal predecessors, (3215), 985 states have call successors, (985), 192 states have call predecessors, (985), 191 states have return successors, (978), 961 states have call predecessors, (978), 978 states have call successors, (978) [2021-11-19 13:23:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-19 13:23:09,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:09,163 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 13:23:09,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:09,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:09,171 INFO L85 PathProgramCache]: Analyzing trace with hash 494310826, now seen corresponding path program 1 times [2021-11-19 13:23:09,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:09,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312045643] [2021-11-19 13:23:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:09,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:09,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:09,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:23:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:13,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:13,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:14,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:14,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:14,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312045643] [2021-11-19 13:23:14,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312045643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:14,335 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:14,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:23:14,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234694438] [2021-11-19 13:23:14,337 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:14,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:14,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:14,376 INFO L87 Difference]: Start difference. First operand has 3668 states, 2462 states have (on average 1.3058489033306255) internal successors, (3215), 2602 states have internal predecessors, (3215), 985 states have call successors, (985), 192 states have call predecessors, (985), 191 states have return successors, (978), 961 states have call predecessors, (978), 978 states have call successors, (978) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 13:23:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:14,936 INFO L93 Difference]: Finished difference Result 7305 states and 10564 transitions. [2021-11-19 13:23:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:14,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51 [2021-11-19 13:23:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:14,995 INFO L225 Difference]: With dead ends: 7305 [2021-11-19 13:23:14,996 INFO L226 Difference]: Without dead ends: 3647 [2021-11-19 13:23:15,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:15,034 INFO L933 BasicCegarLoop]: 5139 mSDtfsCounter, 5100 mSDsluCounter, 10274 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 15413 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:15,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5102 Valid, 15413 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2021-11-19 13:23:15,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2021-11-19 13:23:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3647 states, 2451 states have (on average 1.2913096695226438) internal successors, (3165), 2585 states have internal predecessors, (3165), 978 states have call successors, (978), 191 states have call predecessors, (978), 190 states have return successors, (976), 959 states have call predecessors, (976), 976 states have call successors, (976) [2021-11-19 13:23:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 5119 transitions. [2021-11-19 13:23:15,418 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 5119 transitions. Word has length 51 [2021-11-19 13:23:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:15,420 INFO L470 AbstractCegarLoop]: Abstraction has 3647 states and 5119 transitions. [2021-11-19 13:23:15,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 13:23:15,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 5119 transitions. [2021-11-19 13:23:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 13:23:15,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:15,431 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:15,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:15,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:15,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:15,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:15,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1766495907, now seen corresponding path program 1 times [2021-11-19 13:23:15,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:15,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420622404] [2021-11-19 13:23:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:15,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:15,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:15,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:15,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:23:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:20,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:20,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:20,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:20,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:20,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420622404] [2021-11-19 13:23:20,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420622404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:20,525 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:20,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:20,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119250388] [2021-11-19 13:23:20,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:20,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:20,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:20,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:20,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:20,528 INFO L87 Difference]: Start difference. First operand 3647 states and 5119 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 13:23:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:20,836 INFO L93 Difference]: Finished difference Result 7288 states and 10230 transitions. [2021-11-19 13:23:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 58 [2021-11-19 13:23:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:20,870 INFO L225 Difference]: With dead ends: 7288 [2021-11-19 13:23:20,871 INFO L226 Difference]: Without dead ends: 3648 [2021-11-19 13:23:20,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:20,891 INFO L933 BasicCegarLoop]: 5118 mSDtfsCounter, 0 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10232 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:20,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10232 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-11-19 13:23:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3648. [2021-11-19 13:23:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 2452 states have (on average 1.2911908646003263) internal successors, (3166), 2586 states have internal predecessors, (3166), 978 states have call successors, (978), 191 states have call predecessors, (978), 190 states have return successors, (976), 959 states have call predecessors, (976), 976 states have call successors, (976) [2021-11-19 13:23:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 5120 transitions. [2021-11-19 13:23:21,104 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 5120 transitions. Word has length 58 [2021-11-19 13:23:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:21,104 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 5120 transitions. [2021-11-19 13:23:21,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 13:23:21,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5120 transitions. [2021-11-19 13:23:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 13:23:21,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:21,107 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:21,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:21,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:21,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1750977189, now seen corresponding path program 1 times [2021-11-19 13:23:21,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:21,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261083767] [2021-11-19 13:23:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:21,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:21,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:21,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:21,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:23:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:25,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:25,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:26,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:27,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:27,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261083767] [2021-11-19 13:23:27,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261083767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:27,279 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:27,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:23:27,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965499988] [2021-11-19 13:23:27,279 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:27,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:27,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:27,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:27,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:27,281 INFO L87 Difference]: Start difference. First operand 3648 states and 5120 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 13:23:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:27,714 INFO L93 Difference]: Finished difference Result 7259 states and 10187 transitions. [2021-11-19 13:23:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:27,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 58 [2021-11-19 13:23:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:27,755 INFO L225 Difference]: With dead ends: 7259 [2021-11-19 13:23:27,756 INFO L226 Difference]: Without dead ends: 3630 [2021-11-19 13:23:27,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:27,779 INFO L933 BasicCegarLoop]: 5087 mSDtfsCounter, 5070 mSDsluCounter, 5087 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 10174 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:27,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5070 Valid, 10174 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2021-11-19 13:23:28,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 3630. [2021-11-19 13:23:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 2435 states have (on average 1.2891170431211498) internal successors, (3139), 2569 states have internal predecessors, (3139), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 5091 transitions. [2021-11-19 13:23:28,163 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 5091 transitions. Word has length 58 [2021-11-19 13:23:28,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:28,165 INFO L470 AbstractCegarLoop]: Abstraction has 3630 states and 5091 transitions. [2021-11-19 13:23:28,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 13:23:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 5091 transitions. [2021-11-19 13:23:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-19 13:23:28,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:28,170 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 13:23:28,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:28,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:28,393 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash 587555756, now seen corresponding path program 1 times [2021-11-19 13:23:28,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:28,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718463863] [2021-11-19 13:23:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:28,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:28,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:28,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:23:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:32,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:32,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:33,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:33,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:33,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718463863] [2021-11-19 13:23:33,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718463863] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:33,370 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:33,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:23:33,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257035525] [2021-11-19 13:23:33,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:33,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:33,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:33,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:33,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:33,372 INFO L87 Difference]: Start difference. First operand 3630 states and 5091 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 13:23:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:33,716 INFO L93 Difference]: Finished difference Result 3630 states and 5091 transitions. [2021-11-19 13:23:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 57 [2021-11-19 13:23:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:33,749 INFO L225 Difference]: With dead ends: 3630 [2021-11-19 13:23:33,749 INFO L226 Difference]: Without dead ends: 3628 [2021-11-19 13:23:33,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:33,755 INFO L933 BasicCegarLoop]: 5086 mSDtfsCounter, 5044 mSDsluCounter, 5084 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 10170 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:33,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5046 Valid, 10170 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2021-11-19 13:23:34,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3628. [2021-11-19 13:23:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 2434 states have (on average 1.288824979457683) internal successors, (3137), 2567 states have internal predecessors, (3137), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 5089 transitions. [2021-11-19 13:23:34,084 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 5089 transitions. Word has length 57 [2021-11-19 13:23:34,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:34,085 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 5089 transitions. [2021-11-19 13:23:34,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 13:23:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 5089 transitions. [2021-11-19 13:23:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 13:23:34,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:34,088 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:34,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:34,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:34,305 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:34,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2072541612, now seen corresponding path program 1 times [2021-11-19 13:23:34,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:34,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420553721] [2021-11-19 13:23:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:34,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:34,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:34,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:34,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:23:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:38,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 3037 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:38,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 13:23:39,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 13:23:39,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:39,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420553721] [2021-11-19 13:23:39,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420553721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:39,324 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:39,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 13:23:39,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720848393] [2021-11-19 13:23:39,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:39,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:39,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:39,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:39,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:39,327 INFO L87 Difference]: Start difference. First operand 3628 states and 5089 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 13:23:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:41,050 INFO L93 Difference]: Finished difference Result 8419 states and 11988 transitions. [2021-11-19 13:23:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:23:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2021-11-19 13:23:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:41,095 INFO L225 Difference]: With dead ends: 8419 [2021-11-19 13:23:41,095 INFO L226 Difference]: Without dead ends: 5035 [2021-11-19 13:23:41,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:23:41,115 INFO L933 BasicCegarLoop]: 6834 mSDtfsCounter, 1825 mSDsluCounter, 18145 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 24979 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:41,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 24979 Invalid, 907 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [865 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 13:23:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2021-11-19 13:23:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 3631. [2021-11-19 13:23:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 2437 states have (on average 1.2884694296265902) internal successors, (3140), 2570 states have internal predecessors, (3140), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 5092 transitions. [2021-11-19 13:23:41,464 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 5092 transitions. Word has length 68 [2021-11-19 13:23:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:41,466 INFO L470 AbstractCegarLoop]: Abstraction has 3631 states and 5092 transitions. [2021-11-19 13:23:41,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 13:23:41,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 5092 transitions. [2021-11-19 13:23:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 13:23:41,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:41,468 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 13:23:41,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:41,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:41,693 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:41,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:41,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1616429192, now seen corresponding path program 1 times [2021-11-19 13:23:41,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:41,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612595199] [2021-11-19 13:23:41,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:41,696 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:41,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:41,697 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:41,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:23:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:45,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2927 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:45,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:46,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:46,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:46,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612595199] [2021-11-19 13:23:46,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612595199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:46,533 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:46,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:23:46,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855054270] [2021-11-19 13:23:46,533 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:46,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:46,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:46,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:46,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:46,534 INFO L87 Difference]: Start difference. First operand 3631 states and 5092 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:23:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:46,809 INFO L93 Difference]: Finished difference Result 3631 states and 5092 transitions. [2021-11-19 13:23:46,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:46,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 63 [2021-11-19 13:23:46,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:46,845 INFO L225 Difference]: With dead ends: 3631 [2021-11-19 13:23:46,846 INFO L226 Difference]: Without dead ends: 3629 [2021-11-19 13:23:46,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:46,850 INFO L933 BasicCegarLoop]: 5084 mSDtfsCounter, 5033 mSDsluCounter, 10164 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 15248 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:46,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5035 Valid, 15248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2021-11-19 13:23:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2021-11-19 13:23:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 2436 states have (on average 1.2881773399014778) internal successors, (3138), 2568 states have internal predecessors, (3138), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5090 transitions. [2021-11-19 13:23:47,194 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 5090 transitions. Word has length 63 [2021-11-19 13:23:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:47,194 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 5090 transitions. [2021-11-19 13:23:47,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:23:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 5090 transitions. [2021-11-19 13:23:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 13:23:47,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:47,197 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-11-19 13:23:47,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:47,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:47,421 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:47,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:47,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1250050088, now seen corresponding path program 1 times [2021-11-19 13:23:47,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:47,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693441302] [2021-11-19 13:23:47,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:47,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:47,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:47,424 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:47,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:23:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:51,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:23:51,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:51,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:52,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:23:52,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:52,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693441302] [2021-11-19 13:23:52,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693441302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:52,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:52,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:23:52,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577262482] [2021-11-19 13:23:52,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:52,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:23:52,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:23:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:23:52,276 INFO L87 Difference]: Start difference. First operand 3629 states and 5090 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:52,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:52,551 INFO L93 Difference]: Finished difference Result 3629 states and 5090 transitions. [2021-11-19 13:23:52,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:23:52,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 69 [2021-11-19 13:23:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:52,581 INFO L225 Difference]: With dead ends: 3629 [2021-11-19 13:23:52,581 INFO L226 Difference]: Without dead ends: 3627 [2021-11-19 13:23:52,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:23:52,585 INFO L933 BasicCegarLoop]: 5082 mSDtfsCounter, 5028 mSDsluCounter, 5080 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 10162 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:52,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5030 Valid, 10162 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:23:52,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2021-11-19 13:23:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3627. [2021-11-19 13:23:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 2435 states have (on average 1.2878850102669404) internal successors, (3136), 2566 states have internal predecessors, (3136), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 5088 transitions. [2021-11-19 13:23:52,862 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 5088 transitions. Word has length 69 [2021-11-19 13:23:52,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:52,863 INFO L470 AbstractCegarLoop]: Abstraction has 3627 states and 5088 transitions. [2021-11-19 13:23:52,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:23:52,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 5088 transitions. [2021-11-19 13:23:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 13:23:52,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:52,865 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:52,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:53,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:53,081 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:53,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1431027412, now seen corresponding path program 1 times [2021-11-19 13:23:53,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:53,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276567987] [2021-11-19 13:23:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:53,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:53,085 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:53,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:23:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:23:57,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 3058 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:23:57,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:23:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 13:23:57,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:23:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 13:23:57,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:23:57,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276567987] [2021-11-19 13:23:57,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276567987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:23:57,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:23:57,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:23:57,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613092] [2021-11-19 13:23:57,887 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:23:57,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:23:57,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:23:57,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:23:57,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:57,888 INFO L87 Difference]: Start difference. First operand 3627 states and 5088 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 13:23:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:23:58,285 INFO L93 Difference]: Finished difference Result 7965 states and 11290 transitions. [2021-11-19 13:23:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:23:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 80 [2021-11-19 13:23:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:23:58,317 INFO L225 Difference]: With dead ends: 7965 [2021-11-19 13:23:58,317 INFO L226 Difference]: Without dead ends: 4563 [2021-11-19 13:23:58,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:23:58,336 INFO L933 BasicCegarLoop]: 6367 mSDtfsCounter, 734 mSDsluCounter, 5377 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:23:58,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 11744 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:23:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2021-11-19 13:23:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 3633. [2021-11-19 13:23:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 2441 states have (on average 1.2871773863170832) internal successors, (3142), 2572 states have internal predecessors, (3142), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:23:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 5094 transitions. [2021-11-19 13:23:58,639 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 5094 transitions. Word has length 80 [2021-11-19 13:23:58,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:23:58,640 INFO L470 AbstractCegarLoop]: Abstraction has 3633 states and 5094 transitions. [2021-11-19 13:23:58,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-19 13:23:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 5094 transitions. [2021-11-19 13:23:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-19 13:23:58,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:23:58,642 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:23:58,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:23:58,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:23:58,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:23:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:23:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1662563453, now seen corresponding path program 1 times [2021-11-19 13:23:58,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:23:58,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71018449] [2021-11-19 13:23:58,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:23:58,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:23:58,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:23:58,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:23:58,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:24:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:02,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:02,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:03,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:03,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:03,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71018449] [2021-11-19 13:24:03,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71018449] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:03,740 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:03,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:03,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158995530] [2021-11-19 13:24:03,741 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:03,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:03,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:03,742 INFO L87 Difference]: Start difference. First operand 3633 states and 5094 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:24:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:04,069 INFO L93 Difference]: Finished difference Result 3633 states and 5094 transitions. [2021-11-19 13:24:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 75 [2021-11-19 13:24:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:04,085 INFO L225 Difference]: With dead ends: 3633 [2021-11-19 13:24:04,085 INFO L226 Difference]: Without dead ends: 3631 [2021-11-19 13:24:04,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:04,088 INFO L933 BasicCegarLoop]: 5080 mSDtfsCounter, 5017 mSDsluCounter, 10156 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5019 SdHoareTripleChecker+Valid, 15236 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:04,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5019 Valid, 15236 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2021-11-19 13:24:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3631. [2021-11-19 13:24:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 2440 states have (on average 1.2868852459016393) internal successors, (3140), 2570 states have internal predecessors, (3140), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 5092 transitions. [2021-11-19 13:24:04,377 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 5092 transitions. Word has length 75 [2021-11-19 13:24:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:04,378 INFO L470 AbstractCegarLoop]: Abstraction has 3631 states and 5092 transitions. [2021-11-19 13:24:04,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:24:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 5092 transitions. [2021-11-19 13:24:04,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 13:24:04,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:04,380 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:24:04,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:04,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:04,604 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash -771942157, now seen corresponding path program 1 times [2021-11-19 13:24:04,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:04,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048234816] [2021-11-19 13:24:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:04,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:04,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:04,610 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:04,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:24:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:08,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:08,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:09,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:09,627 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:09,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048234816] [2021-11-19 13:24:09,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048234816] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:09,628 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:09,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:09,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945299193] [2021-11-19 13:24:09,628 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:09,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:09,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:09,629 INFO L87 Difference]: Start difference. First operand 3631 states and 5092 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:24:09,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:09,867 INFO L93 Difference]: Finished difference Result 3631 states and 5092 transitions. [2021-11-19 13:24:09,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:09,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 81 [2021-11-19 13:24:09,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:09,880 INFO L225 Difference]: With dead ends: 3631 [2021-11-19 13:24:09,880 INFO L226 Difference]: Without dead ends: 3629 [2021-11-19 13:24:09,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:09,883 INFO L933 BasicCegarLoop]: 5078 mSDtfsCounter, 5012 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:09,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5014 Valid, 10154 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2021-11-19 13:24:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2021-11-19 13:24:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 2439 states have (on average 1.2865928659286592) internal successors, (3138), 2568 states have internal predecessors, (3138), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 5090 transitions. [2021-11-19 13:24:10,182 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 5090 transitions. Word has length 81 [2021-11-19 13:24:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:10,183 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 5090 transitions. [2021-11-19 13:24:10,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:24:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 5090 transitions. [2021-11-19 13:24:10,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-19 13:24:10,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:10,184 INFO L514 BasicCegarLoop]: trace histogram [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, 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 13:24:10,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:10,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:10,389 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:10,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash 261564548, now seen corresponding path program 1 times [2021-11-19 13:24:10,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:10,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213804598] [2021-11-19 13:24:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:10,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:10,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:10,394 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:10,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:24:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:14,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 2963 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:14,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:15,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:15,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:15,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213804598] [2021-11-19 13:24:15,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213804598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:15,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:15,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:15,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106653627] [2021-11-19 13:24:15,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:15,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:15,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:15,573 INFO L87 Difference]: Start difference. First operand 3629 states and 5090 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:24:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:15,859 INFO L93 Difference]: Finished difference Result 3629 states and 5090 transitions. [2021-11-19 13:24:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:15,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 87 [2021-11-19 13:24:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:15,875 INFO L225 Difference]: With dead ends: 3629 [2021-11-19 13:24:15,875 INFO L226 Difference]: Without dead ends: 3627 [2021-11-19 13:24:15,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:15,878 INFO L933 BasicCegarLoop]: 5076 mSDtfsCounter, 5001 mSDsluCounter, 10148 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 15224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:15,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5003 Valid, 15224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2021-11-19 13:24:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3627. [2021-11-19 13:24:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3627 states, 2438 states have (on average 1.2863002461033635) internal successors, (3136), 2566 states have internal predecessors, (3136), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 5088 transitions. [2021-11-19 13:24:16,186 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 5088 transitions. Word has length 87 [2021-11-19 13:24:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:16,186 INFO L470 AbstractCegarLoop]: Abstraction has 3627 states and 5088 transitions. [2021-11-19 13:24:16,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:24:16,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 5088 transitions. [2021-11-19 13:24:16,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 13:24:16,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:16,189 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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 13:24:16,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:16,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:16,405 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:16,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:16,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1794277237, now seen corresponding path program 1 times [2021-11-19 13:24:16,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:16,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132976248] [2021-11-19 13:24:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:16,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:16,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:16,411 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:16,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:24:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:20,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:20,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:21,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:21,803 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:21,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132976248] [2021-11-19 13:24:21,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132976248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:21,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:21,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:21,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907027105] [2021-11-19 13:24:21,804 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:21,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:21,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:21,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:21,805 INFO L87 Difference]: Start difference. First operand 3627 states and 5088 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:22,121 INFO L93 Difference]: Finished difference Result 3627 states and 5088 transitions. [2021-11-19 13:24:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:22,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 93 [2021-11-19 13:24:22,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:22,137 INFO L225 Difference]: With dead ends: 3627 [2021-11-19 13:24:22,137 INFO L226 Difference]: Without dead ends: 3625 [2021-11-19 13:24:22,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:22,141 INFO L933 BasicCegarLoop]: 5074 mSDtfsCounter, 4997 mSDsluCounter, 10136 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4999 SdHoareTripleChecker+Valid, 15210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:22,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4999 Valid, 15210 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:22,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2021-11-19 13:24:22,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3625. [2021-11-19 13:24:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3625 states, 2437 states have (on average 1.2860073861304884) internal successors, (3134), 2564 states have internal predecessors, (3134), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3625 states to 3625 states and 5086 transitions. [2021-11-19 13:24:22,457 INFO L78 Accepts]: Start accepts. Automaton has 3625 states and 5086 transitions. Word has length 93 [2021-11-19 13:24:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:22,458 INFO L470 AbstractCegarLoop]: Abstraction has 3625 states and 5086 transitions. [2021-11-19 13:24:22,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3625 states and 5086 transitions. [2021-11-19 13:24:22,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 13:24:22,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:22,465 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 13:24:22,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:22,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:22,689 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2018309234, now seen corresponding path program 1 times [2021-11-19 13:24:22,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:22,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617358236] [2021-11-19 13:24:22,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:22,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:22,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:22,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:22,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:24:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:26,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2975 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:26,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:27,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:27,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:27,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617358236] [2021-11-19 13:24:27,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617358236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:27,968 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:27,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:27,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094578491] [2021-11-19 13:24:27,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:27,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:27,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:27,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:27,970 INFO L87 Difference]: Start difference. First operand 3625 states and 5086 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:28,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:28,334 INFO L93 Difference]: Finished difference Result 3625 states and 5086 transitions. [2021-11-19 13:24:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:28,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 95 [2021-11-19 13:24:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:28,350 INFO L225 Difference]: With dead ends: 3625 [2021-11-19 13:24:28,350 INFO L226 Difference]: Without dead ends: 3623 [2021-11-19 13:24:28,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:28,354 INFO L933 BasicCegarLoop]: 5072 mSDtfsCounter, 4989 mSDsluCounter, 10140 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 15212 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:28,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4991 Valid, 15212 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2021-11-19 13:24:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3623. [2021-11-19 13:24:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 2436 states have (on average 1.2857142857142858) internal successors, (3132), 2562 states have internal predecessors, (3132), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 5084 transitions. [2021-11-19 13:24:28,705 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 5084 transitions. Word has length 95 [2021-11-19 13:24:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:28,706 INFO L470 AbstractCegarLoop]: Abstraction has 3623 states and 5084 transitions. [2021-11-19 13:24:28,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 5084 transitions. [2021-11-19 13:24:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 13:24:28,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:28,709 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:28,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:28,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:28,929 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1505471895, now seen corresponding path program 1 times [2021-11-19 13:24:28,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:28,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707835683] [2021-11-19 13:24:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:28,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:28,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:28,934 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:28,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:24:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:33,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:33,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:33,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:34,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:34,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707835683] [2021-11-19 13:24:34,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707835683] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:34,420 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:34,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:34,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070538980] [2021-11-19 13:24:34,420 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:34,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:34,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:34,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:34,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:34,422 INFO L87 Difference]: Start difference. First operand 3623 states and 5084 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:24:34,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:34,685 INFO L93 Difference]: Finished difference Result 3623 states and 5084 transitions. [2021-11-19 13:24:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:34,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101 [2021-11-19 13:24:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:34,701 INFO L225 Difference]: With dead ends: 3623 [2021-11-19 13:24:34,701 INFO L226 Difference]: Without dead ends: 3621 [2021-11-19 13:24:34,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:34,705 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 4981 mSDsluCounter, 10136 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4983 SdHoareTripleChecker+Valid, 15206 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:34,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4983 Valid, 15206 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2021-11-19 13:24:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3621. [2021-11-19 13:24:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 2435 states have (on average 1.2854209445585216) internal successors, (3130), 2560 states have internal predecessors, (3130), 977 states have call successors, (977), 191 states have call predecessors, (977), 190 states have return successors, (975), 958 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-19 13:24:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 5082 transitions. [2021-11-19 13:24:35,084 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 5082 transitions. Word has length 101 [2021-11-19 13:24:35,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:35,086 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 5082 transitions. [2021-11-19 13:24:35,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:24:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 5082 transitions. [2021-11-19 13:24:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-19 13:24:35,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:35,088 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:24:35,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:35,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:35,288 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1533283584, now seen corresponding path program 1 times [2021-11-19 13:24:35,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:35,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782613573] [2021-11-19 13:24:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:35,292 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:35,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:35,294 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:35,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:24:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:39,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 3142 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:24:39,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-19 13:24:40,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-19 13:24:41,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:41,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782613573] [2021-11-19 13:24:41,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782613573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:41,414 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:41,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:24:41,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628948176] [2021-11-19 13:24:41,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:41,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:24:41,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:41,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:24:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:24:41,416 INFO L87 Difference]: Start difference. First operand 3621 states and 5082 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:42,077 INFO L93 Difference]: Finished difference Result 4787 states and 6619 transitions. [2021-11-19 13:24:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:24:42,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 110 [2021-11-19 13:24:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:42,107 INFO L225 Difference]: With dead ends: 4787 [2021-11-19 13:24:42,107 INFO L226 Difference]: Without dead ends: 4785 [2021-11-19 13:24:42,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:24:42,112 INFO L933 BasicCegarLoop]: 5364 mSDtfsCounter, 4743 mSDsluCounter, 12513 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 17877 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:42,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4746 Valid, 17877 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:24:42,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2021-11-19 13:24:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4771. [2021-11-19 13:24:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 3227 states have (on average 1.2819956616052062) internal successors, (4137), 3372 states have internal predecessors, (4137), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:24:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6609 transitions. [2021-11-19 13:24:42,735 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6609 transitions. Word has length 110 [2021-11-19 13:24:42,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:42,736 INFO L470 AbstractCegarLoop]: Abstraction has 4771 states and 6609 transitions. [2021-11-19 13:24:42,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:24:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6609 transitions. [2021-11-19 13:24:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 13:24:42,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:42,739 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:42,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:42,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:42,961 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:42,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1037527417, now seen corresponding path program 1 times [2021-11-19 13:24:42,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:42,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490253696] [2021-11-19 13:24:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:42,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:42,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:42,964 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:42,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:24:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:46,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2993 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:46,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:47,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:48,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:48,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490253696] [2021-11-19 13:24:48,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490253696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:48,318 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:48,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:48,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204951221] [2021-11-19 13:24:48,319 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:48,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:48,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:48,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:48,320 INFO L87 Difference]: Start difference. First operand 4771 states and 6609 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:24:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:48,772 INFO L93 Difference]: Finished difference Result 4771 states and 6609 transitions. [2021-11-19 13:24:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2021-11-19 13:24:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:48,798 INFO L225 Difference]: With dead ends: 4771 [2021-11-19 13:24:48,798 INFO L226 Difference]: Without dead ends: 4769 [2021-11-19 13:24:48,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:48,803 INFO L933 BasicCegarLoop]: 5068 mSDtfsCounter, 4973 mSDsluCounter, 10132 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 15200 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:48,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4975 Valid, 15200 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2021-11-19 13:24:49,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4769. [2021-11-19 13:24:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4769 states, 3226 states have (on average 1.2817730936143832) internal successors, (4135), 3370 states have internal predecessors, (4135), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:24:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4769 states to 4769 states and 6607 transitions. [2021-11-19 13:24:49,345 INFO L78 Accepts]: Start accepts. Automaton has 4769 states and 6607 transitions. Word has length 107 [2021-11-19 13:24:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:49,346 INFO L470 AbstractCegarLoop]: Abstraction has 4769 states and 6607 transitions. [2021-11-19 13:24:49,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:24:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4769 states and 6607 transitions. [2021-11-19 13:24:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 13:24:49,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:49,349 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:49,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:49,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:49,576 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash 748018171, now seen corresponding path program 1 times [2021-11-19 13:24:49,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:49,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710001787] [2021-11-19 13:24:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:49,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:49,582 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:49,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 13:24:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:53,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3002 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:53,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:54,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:24:55,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:55,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710001787] [2021-11-19 13:24:55,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710001787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:55,095 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:55,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:24:55,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22696340] [2021-11-19 13:24:55,095 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:55,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:24:55,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:24:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:24:55,097 INFO L87 Difference]: Start difference. First operand 4769 states and 6607 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:24:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:55,537 INFO L93 Difference]: Finished difference Result 4769 states and 6607 transitions. [2021-11-19 13:24:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:55,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 113 [2021-11-19 13:24:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:55,558 INFO L225 Difference]: With dead ends: 4769 [2021-11-19 13:24:55,559 INFO L226 Difference]: Without dead ends: 4767 [2021-11-19 13:24:55,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:24:55,562 INFO L933 BasicCegarLoop]: 5066 mSDtfsCounter, 4965 mSDsluCounter, 10128 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 15194 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:55,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4967 Valid, 15194 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2021-11-19 13:24:56,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4767. [2021-11-19 13:24:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 3225 states have (on average 1.2815503875968992) internal successors, (4133), 3368 states have internal predecessors, (4133), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:24:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 6605 transitions. [2021-11-19 13:24:56,039 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 6605 transitions. Word has length 113 [2021-11-19 13:24:56,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:56,040 INFO L470 AbstractCegarLoop]: Abstraction has 4767 states and 6605 transitions. [2021-11-19 13:24:56,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:24:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 6605 transitions. [2021-11-19 13:24:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 13:24:56,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:56,042 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:56,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-19 13:24:56,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:56,242 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:24:56,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:56,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1095547817, now seen corresponding path program 1 times [2021-11-19 13:24:56,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:56,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867313618] [2021-11-19 13:24:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:56,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:56,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:56,246 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:56,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:24:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:00,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:25:00,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:01,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:01,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:01,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867313618] [2021-11-19 13:25:01,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867313618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:01,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:01,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:25:01,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002281070] [2021-11-19 13:25:01,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:01,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:25:01,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:01,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:25:01,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:25:01,462 INFO L87 Difference]: Start difference. First operand 4767 states and 6605 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:25:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:01,811 INFO L93 Difference]: Finished difference Result 4767 states and 6605 transitions. [2021-11-19 13:25:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:01,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 119 [2021-11-19 13:25:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:01,831 INFO L225 Difference]: With dead ends: 4767 [2021-11-19 13:25:01,832 INFO L226 Difference]: Without dead ends: 4765 [2021-11-19 13:25:01,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:25:01,836 INFO L933 BasicCegarLoop]: 5064 mSDtfsCounter, 4957 mSDsluCounter, 10124 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4959 SdHoareTripleChecker+Valid, 15188 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:01,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4959 Valid, 15188 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:25:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2021-11-19 13:25:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 4765. [2021-11-19 13:25:02,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4765 states, 3224 states have (on average 1.2813275434243176) internal successors, (4131), 3366 states have internal predecessors, (4131), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:25:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4765 states to 4765 states and 6603 transitions. [2021-11-19 13:25:02,507 INFO L78 Accepts]: Start accepts. Automaton has 4765 states and 6603 transitions. Word has length 119 [2021-11-19 13:25:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:02,508 INFO L470 AbstractCegarLoop]: Abstraction has 4765 states and 6603 transitions. [2021-11-19 13:25:02,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:25:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4765 states and 6603 transitions. [2021-11-19 13:25:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-19 13:25:02,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:02,511 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:02,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:02,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:02,737 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:02,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash -101298969, now seen corresponding path program 1 times [2021-11-19 13:25:02,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:02,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539876407] [2021-11-19 13:25:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:02,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:02,741 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:02,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:25:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:07,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 3293 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:25:07,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-19 13:25:08,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2021-11-19 13:25:09,417 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:09,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539876407] [2021-11-19 13:25:09,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539876407] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:25:09,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:25:09,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-19 13:25:09,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588335138] [2021-11-19 13:25:09,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:09,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:25:09,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:09,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:25:09,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:25:09,419 INFO L87 Difference]: Start difference. First operand 4765 states and 6603 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 13:25:10,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:10,111 INFO L93 Difference]: Finished difference Result 10461 states and 14652 transitions. [2021-11-19 13:25:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:25:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 152 [2021-11-19 13:25:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:10,139 INFO L225 Difference]: With dead ends: 10461 [2021-11-19 13:25:10,139 INFO L226 Difference]: Without dead ends: 5729 [2021-11-19 13:25:10,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:25:10,168 INFO L933 BasicCegarLoop]: 6545 mSDtfsCounter, 915 mSDsluCounter, 24836 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 31381 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:10,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 31381 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:25:10,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2021-11-19 13:25:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 4765. [2021-11-19 13:25:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4765 states, 3224 states have (on average 1.281017369727047) internal successors, (4130), 3365 states have internal predecessors, (4130), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:25:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4765 states to 4765 states and 6602 transitions. [2021-11-19 13:25:10,940 INFO L78 Accepts]: Start accepts. Automaton has 4765 states and 6602 transitions. Word has length 152 [2021-11-19 13:25:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:10,940 INFO L470 AbstractCegarLoop]: Abstraction has 4765 states and 6602 transitions. [2021-11-19 13:25:10,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 13:25:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4765 states and 6602 transitions. [2021-11-19 13:25:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 13:25:10,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:10,946 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:11,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:11,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:11,173 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash -108262818, now seen corresponding path program 1 times [2021-11-19 13:25:11,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:11,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064345181] [2021-11-19 13:25:11,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:11,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:11,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:11,177 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:11,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 13:25:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:15,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:25:15,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:16,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:16,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:16,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064345181] [2021-11-19 13:25:16,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064345181] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:16,822 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:16,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:25:16,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107524363] [2021-11-19 13:25:16,822 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:16,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:25:16,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:16,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:25:16,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:25:16,823 INFO L87 Difference]: Start difference. First operand 4765 states and 6602 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:25:17,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:17,257 INFO L93 Difference]: Finished difference Result 4765 states and 6602 transitions. [2021-11-19 13:25:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 125 [2021-11-19 13:25:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:17,271 INFO L225 Difference]: With dead ends: 4765 [2021-11-19 13:25:17,271 INFO L226 Difference]: Without dead ends: 4763 [2021-11-19 13:25:17,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:25:17,274 INFO L933 BasicCegarLoop]: 5061 mSDtfsCounter, 4948 mSDsluCounter, 10118 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 15179 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:17,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 15179 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:25:17,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2021-11-19 13:25:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2021-11-19 13:25:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3223 states have (on average 1.2807942910331989) internal successors, (4128), 3363 states have internal predecessors, (4128), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:25:17,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6600 transitions. [2021-11-19 13:25:17,875 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6600 transitions. Word has length 125 [2021-11-19 13:25:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:17,876 INFO L470 AbstractCegarLoop]: Abstraction has 4763 states and 6600 transitions. [2021-11-19 13:25:17,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:25:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6600 transitions. [2021-11-19 13:25:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:25:17,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:17,880 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:17,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:18,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:18,099 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:18,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1203645706, now seen corresponding path program 1 times [2021-11-19 13:25:18,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:18,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776669310] [2021-11-19 13:25:18,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:18,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:18,106 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:18,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 13:25:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:24,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 3304 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:25:24,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-19 13:25:24,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-19 13:25:25,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:25,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776669310] [2021-11-19 13:25:25,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776669310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:25,303 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:25,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 13:25:25,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444850792] [2021-11-19 13:25:25,304 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:25,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:25:25,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:25,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:25:25,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:25:25,305 INFO L87 Difference]: Start difference. First operand 4763 states and 6600 transitions. Second operand has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 13:25:28,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:28,305 INFO L93 Difference]: Finished difference Result 9489 states and 13158 transitions. [2021-11-19 13:25:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:25:28,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2021-11-19 13:25:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:28,348 INFO L225 Difference]: With dead ends: 9489 [2021-11-19 13:25:28,348 INFO L226 Difference]: Without dead ends: 4763 [2021-11-19 13:25:28,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:25:28,372 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 64 mSDsluCounter, 24669 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 29638 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 184 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:28,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 29638 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 184 Unchecked, 2.3s Time] [2021-11-19 13:25:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2021-11-19 13:25:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2021-11-19 13:25:29,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3223 states have (on average 1.2804840210983555) internal successors, (4127), 3363 states have internal predecessors, (4127), 1232 states have call successors, (1232), 299 states have call predecessors, (1232), 293 states have return successors, (1240), 1200 states have call predecessors, (1240), 1230 states have call successors, (1240) [2021-11-19 13:25:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6599 transitions. [2021-11-19 13:25:29,042 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6599 transitions. Word has length 156 [2021-11-19 13:25:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:29,043 INFO L470 AbstractCegarLoop]: Abstraction has 4763 states and 6599 transitions. [2021-11-19 13:25:29,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 13:25:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6599 transitions. [2021-11-19 13:25:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:25:29,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:29,046 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:29,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:29,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:29,261 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1316314228, now seen corresponding path program 1 times [2021-11-19 13:25:29,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:29,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775905059] [2021-11-19 13:25:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:29,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:29,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:29,265 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:29,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 13:25:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:35,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 3304 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:25:35,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-19 13:25:36,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-19 13:25:37,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:37,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775905059] [2021-11-19 13:25:37,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775905059] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:37,459 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:37,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:25:37,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886806418] [2021-11-19 13:25:37,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:37,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:25:37,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:37,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:25:37,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:25:37,461 INFO L87 Difference]: Start difference. First operand 4763 states and 6599 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:25:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:38,157 INFO L93 Difference]: Finished difference Result 4810 states and 6636 transitions. [2021-11-19 13:25:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:25:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 156 [2021-11-19 13:25:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:38,175 INFO L225 Difference]: With dead ends: 4810 [2021-11-19 13:25:38,175 INFO L226 Difference]: Without dead ends: 4808 [2021-11-19 13:25:38,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:25:38,179 INFO L933 BasicCegarLoop]: 5066 mSDtfsCounter, 4868 mSDsluCounter, 15317 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 20383 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:38,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 20383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:25:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2021-11-19 13:25:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 4806. [2021-11-19 13:25:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 3252 states have (on average 1.278290282902829) internal successors, (4157), 3392 states have internal predecessors, (4157), 1234 states have call successors, (1234), 311 states have call predecessors, (1234), 305 states have return successors, (1242), 1202 states have call predecessors, (1242), 1232 states have call successors, (1242) [2021-11-19 13:25:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 6633 transitions. [2021-11-19 13:25:38,848 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 6633 transitions. Word has length 156 [2021-11-19 13:25:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:38,848 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 6633 transitions. [2021-11-19 13:25:38,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:25:38,849 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 6633 transitions. [2021-11-19 13:25:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-19 13:25:38,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:38,852 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:38,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-19 13:25:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:39,069 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:39,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1142354361, now seen corresponding path program 1 times [2021-11-19 13:25:39,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:39,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669369244] [2021-11-19 13:25:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:39,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:39,073 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:39,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 13:25:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:43,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:25:43,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-19 13:25:43,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-19 13:25:44,296 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:44,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669369244] [2021-11-19 13:25:44,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669369244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:44,297 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:44,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:25:44,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767356360] [2021-11-19 13:25:44,297 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:44,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:25:44,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:25:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:25:44,298 INFO L87 Difference]: Start difference. First operand 4806 states and 6633 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:25:46,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:25:47,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:47,458 INFO L93 Difference]: Finished difference Result 4826 states and 6646 transitions. [2021-11-19 13:25:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:25:47,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2021-11-19 13:25:47,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:47,472 INFO L225 Difference]: With dead ends: 4826 [2021-11-19 13:25:47,472 INFO L226 Difference]: Without dead ends: 4824 [2021-11-19 13:25:47,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:25:47,474 INFO L933 BasicCegarLoop]: 6551 mSDtfsCounter, 1784 mSDsluCounter, 24449 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 31000 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:47,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 31000 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:25:47,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4824 states. [2021-11-19 13:25:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4824 to 4810. [2021-11-19 13:25:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 3255 states have (on average 1.2780337941628264) internal successors, (4160), 3395 states have internal predecessors, (4160), 1234 states have call successors, (1234), 312 states have call predecessors, (1234), 306 states have return successors, (1242), 1202 states have call predecessors, (1242), 1232 states have call successors, (1242) [2021-11-19 13:25:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 6636 transitions. [2021-11-19 13:25:47,894 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 6636 transitions. Word has length 136 [2021-11-19 13:25:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:47,894 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 6636 transitions. [2021-11-19 13:25:47,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-19 13:25:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 6636 transitions. [2021-11-19 13:25:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-19 13:25:47,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:47,897 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:47,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-19 13:25:48,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:48,105 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:48,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:48,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1493622570, now seen corresponding path program 1 times [2021-11-19 13:25:48,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:48,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867260542] [2021-11-19 13:25:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:48,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:48,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:48,108 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:48,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 13:25:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:51,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:25:51,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:52,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:25:53,807 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:53,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867260542] [2021-11-19 13:25:53,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867260542] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:53,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:53,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 13:25:53,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583931756] [2021-11-19 13:25:53,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:53,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:25:53,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:53,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:25:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:25:53,810 INFO L87 Difference]: Start difference. First operand 4810 states and 6636 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 13:25:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:54,248 INFO L93 Difference]: Finished difference Result 4810 states and 6636 transitions. [2021-11-19 13:25:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:54,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 131 [2021-11-19 13:25:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:54,264 INFO L225 Difference]: With dead ends: 4810 [2021-11-19 13:25:54,264 INFO L226 Difference]: Without dead ends: 4808 [2021-11-19 13:25:54,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:25:54,267 INFO L933 BasicCegarLoop]: 5058 mSDtfsCounter, 5008 mSDsluCounter, 5056 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5010 SdHoareTripleChecker+Valid, 10114 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:54,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5010 Valid, 10114 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:25:54,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2021-11-19 13:25:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 4808. [2021-11-19 13:25:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4808 states, 3254 states have (on average 1.2778119237861094) internal successors, (4158), 3393 states have internal predecessors, (4158), 1234 states have call successors, (1234), 312 states have call predecessors, (1234), 306 states have return successors, (1242), 1202 states have call predecessors, (1242), 1232 states have call successors, (1242) [2021-11-19 13:25:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 6634 transitions. [2021-11-19 13:25:54,745 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 6634 transitions. Word has length 131 [2021-11-19 13:25:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:54,745 INFO L470 AbstractCegarLoop]: Abstraction has 4808 states and 6634 transitions. [2021-11-19 13:25:54,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 13:25:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 6634 transitions. [2021-11-19 13:25:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-19 13:25:54,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:54,748 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:54,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:54,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:54,972 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:25:54,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:54,973 INFO L85 PathProgramCache]: Analyzing trace with hash -585183022, now seen corresponding path program 1 times [2021-11-19 13:25:54,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:54,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935846714] [2021-11-19 13:25:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:54,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:54,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:54,976 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:54,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 13:25:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:58,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:25:58,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-19 13:26:00,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2021-11-19 13:26:02,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:02,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935846714] [2021-11-19 13:26:02,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935846714] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:26:02,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:26:02,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2021-11-19 13:26:02,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800031784] [2021-11-19 13:26:02,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:02,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:26:02,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:26:02,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:26:02,296 INFO L87 Difference]: Start difference. First operand 4808 states and 6634 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-19 13:26:06,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:06,106 INFO L93 Difference]: Finished difference Result 7505 states and 10297 transitions. [2021-11-19 13:26:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:26:06,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 179 [2021-11-19 13:26:06,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:06,128 INFO L225 Difference]: With dead ends: 7505 [2021-11-19 13:26:06,128 INFO L226 Difference]: Without dead ends: 4844 [2021-11-19 13:26:06,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 13:26:06,259 INFO L933 BasicCegarLoop]: 5037 mSDtfsCounter, 44 mSDsluCounter, 60226 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 65263 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:06,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 65263 Invalid, 848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [170 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:26:06,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-11-19 13:26:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4820. [2021-11-19 13:26:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4820 states, 3262 states have (on average 1.2771305947271612) internal successors, (4166), 3401 states have internal predecessors, (4166), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4820 states to 4820 states and 6650 transitions. [2021-11-19 13:26:06,908 INFO L78 Accepts]: Start accepts. Automaton has 4820 states and 6650 transitions. Word has length 179 [2021-11-19 13:26:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:06,909 INFO L470 AbstractCegarLoop]: Abstraction has 4820 states and 6650 transitions. [2021-11-19 13:26:06,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2021-11-19 13:26:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4820 states and 6650 transitions. [2021-11-19 13:26:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-19 13:26:06,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:06,912 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:06,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:07,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:07,137 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:07,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1414403492, now seen corresponding path program 1 times [2021-11-19 13:26:07,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:07,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345481234] [2021-11-19 13:26:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:07,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:07,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:07,140 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:07,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 13:26:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:10,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:26:10,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:12,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:12,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:12,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345481234] [2021-11-19 13:26:12,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345481234] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:12,560 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:12,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:26:12,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842828894] [2021-11-19 13:26:12,561 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:12,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:12,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:12,563 INFO L87 Difference]: Start difference. First operand 4820 states and 6650 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:26:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:13,003 INFO L93 Difference]: Finished difference Result 4820 states and 6650 transitions. [2021-11-19 13:26:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:13,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 137 [2021-11-19 13:26:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:13,021 INFO L225 Difference]: With dead ends: 4820 [2021-11-19 13:26:13,022 INFO L226 Difference]: Without dead ends: 4818 [2021-11-19 13:26:13,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:26:13,026 INFO L933 BasicCegarLoop]: 5056 mSDtfsCounter, 4931 mSDsluCounter, 10108 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4933 SdHoareTripleChecker+Valid, 15164 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:13,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4933 Valid, 15164 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:26:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2021-11-19 13:26:13,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4818. [2021-11-19 13:26:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 3261 states have (on average 1.2769089236430542) internal successors, (4164), 3399 states have internal predecessors, (4164), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 6648 transitions. [2021-11-19 13:26:13,601 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 6648 transitions. Word has length 137 [2021-11-19 13:26:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:13,602 INFO L470 AbstractCegarLoop]: Abstraction has 4818 states and 6648 transitions. [2021-11-19 13:26:13,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:26:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 6648 transitions. [2021-11-19 13:26:13,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-19 13:26:13,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:13,605 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:13,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:13,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:13,829 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 33134697, now seen corresponding path program 1 times [2021-11-19 13:26:13,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:13,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695128909] [2021-11-19 13:26:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:13,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:13,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:13,833 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:13,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 13:26:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:17,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:26:17,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:18,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:19,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:19,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695128909] [2021-11-19 13:26:19,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695128909] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:19,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:19,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:26:19,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203459945] [2021-11-19 13:26:19,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:19,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:19,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:19,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:19,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:19,335 INFO L87 Difference]: Start difference. First operand 4818 states and 6648 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 13:26:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:19,760 INFO L93 Difference]: Finished difference Result 4818 states and 6648 transitions. [2021-11-19 13:26:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:19,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 143 [2021-11-19 13:26:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:19,776 INFO L225 Difference]: With dead ends: 4818 [2021-11-19 13:26:19,776 INFO L226 Difference]: Without dead ends: 4816 [2021-11-19 13:26:19,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:26:19,780 INFO L933 BasicCegarLoop]: 5054 mSDtfsCounter, 4923 mSDsluCounter, 10104 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 15158 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:19,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4925 Valid, 15158 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:26:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2021-11-19 13:26:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4816. [2021-11-19 13:26:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 3260 states have (on average 1.2766871165644171) internal successors, (4162), 3397 states have internal predecessors, (4162), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6646 transitions. [2021-11-19 13:26:20,430 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6646 transitions. Word has length 143 [2021-11-19 13:26:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:20,431 INFO L470 AbstractCegarLoop]: Abstraction has 4816 states and 6646 transitions. [2021-11-19 13:26:20,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 13:26:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6646 transitions. [2021-11-19 13:26:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 13:26:20,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:20,434 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:26:20,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:20,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:20,657 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash -428922981, now seen corresponding path program 1 times [2021-11-19 13:26:20,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:20,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527683926] [2021-11-19 13:26:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:20,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:20,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:20,661 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:20,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 13:26:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:24,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:26:24,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2021-11-19 13:26:25,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-11-19 13:26:26,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:26,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527683926] [2021-11-19 13:26:26,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527683926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:26,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:26,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 13:26:26,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167910931] [2021-11-19 13:26:26,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:26,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:26,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:26,246 INFO L87 Difference]: Start difference. First operand 4816 states and 6646 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 13:26:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:28,832 INFO L93 Difference]: Finished difference Result 8238 states and 11438 transitions. [2021-11-19 13:26:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:26:28,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 209 [2021-11-19 13:26:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:28,847 INFO L225 Difference]: With dead ends: 8238 [2021-11-19 13:26:28,847 INFO L226 Difference]: Without dead ends: 5541 [2021-11-19 13:26:28,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:26:28,854 INFO L933 BasicCegarLoop]: 6197 mSDtfsCounter, 2605 mSDsluCounter, 13166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 19363 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1802 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:28,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2605 Valid, 19363 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1802 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-19 13:26:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5541 states. [2021-11-19 13:26:29,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5541 to 4816. [2021-11-19 13:26:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 3260 states have (on average 1.2763803680981596) internal successors, (4161), 3397 states have internal predecessors, (4161), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6645 transitions. [2021-11-19 13:26:29,384 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6645 transitions. Word has length 209 [2021-11-19 13:26:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:29,384 INFO L470 AbstractCegarLoop]: Abstraction has 4816 states and 6645 transitions. [2021-11-19 13:26:29,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 13:26:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6645 transitions. [2021-11-19 13:26:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-19 13:26:29,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:29,386 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:26:29,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:29,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:29,587 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:29,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1119569989, now seen corresponding path program 1 times [2021-11-19 13:26:29,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:29,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853063555] [2021-11-19 13:26:29,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:29,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:29,593 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:29,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 13:26:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:34,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 3342 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:26:34,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-19 13:26:35,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-11-19 13:26:35,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:35,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853063555] [2021-11-19 13:26:35,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853063555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:35,578 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:35,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:26:35,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170066593] [2021-11-19 13:26:35,578 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:35,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:26:35,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:26:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:26:35,580 INFO L87 Difference]: Start difference. First operand 4816 states and 6645 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:26:37,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:26:38,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:38,520 INFO L93 Difference]: Finished difference Result 4818 states and 6646 transitions. [2021-11-19 13:26:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:26:38,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 177 [2021-11-19 13:26:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:38,533 INFO L225 Difference]: With dead ends: 4818 [2021-11-19 13:26:38,533 INFO L226 Difference]: Without dead ends: 4816 [2021-11-19 13:26:38,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:26:38,536 INFO L933 BasicCegarLoop]: 5080 mSDtfsCounter, 126 mSDsluCounter, 20177 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 25257 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:38,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 25257 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:26:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2021-11-19 13:26:39,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4816. [2021-11-19 13:26:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 3260 states have (on average 1.2760736196319018) internal successors, (4160), 3397 states have internal predecessors, (4160), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6644 transitions. [2021-11-19 13:26:39,071 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6644 transitions. Word has length 177 [2021-11-19 13:26:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:39,072 INFO L470 AbstractCegarLoop]: Abstraction has 4816 states and 6644 transitions. [2021-11-19 13:26:39,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-19 13:26:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6644 transitions. [2021-11-19 13:26:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 13:26:39,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:39,074 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:39,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-11-19 13:26:39,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:39,277 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:39,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash -454792610, now seen corresponding path program 1 times [2021-11-19 13:26:39,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:39,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253133754] [2021-11-19 13:26:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:39,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:39,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:39,280 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:39,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 13:26:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:43,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:26:43,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:44,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:44,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:44,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253133754] [2021-11-19 13:26:44,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253133754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:44,739 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:44,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:26:44,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952951549] [2021-11-19 13:26:44,739 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:44,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:44,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:44,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:44,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:44,740 INFO L87 Difference]: Start difference. First operand 4816 states and 6644 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:26:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:45,177 INFO L93 Difference]: Finished difference Result 4816 states and 6644 transitions. [2021-11-19 13:26:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:45,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 149 [2021-11-19 13:26:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:45,189 INFO L225 Difference]: With dead ends: 4816 [2021-11-19 13:26:45,189 INFO L226 Difference]: Without dead ends: 4814 [2021-11-19 13:26:45,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:26:45,192 INFO L933 BasicCegarLoop]: 5051 mSDtfsCounter, 4917 mSDsluCounter, 5049 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4919 SdHoareTripleChecker+Valid, 10100 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:45,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4919 Valid, 10100 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:26:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2021-11-19 13:26:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 4814. [2021-11-19 13:26:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 3259 states have (on average 1.2758514881865604) internal successors, (4158), 3395 states have internal predecessors, (4158), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 6642 transitions. [2021-11-19 13:26:45,871 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 6642 transitions. Word has length 149 [2021-11-19 13:26:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:45,872 INFO L470 AbstractCegarLoop]: Abstraction has 4814 states and 6642 transitions. [2021-11-19 13:26:45,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:26:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 6642 transitions. [2021-11-19 13:26:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-19 13:26:45,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:45,874 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:45,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:46,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:46,074 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash 179438010, now seen corresponding path program 1 times [2021-11-19 13:26:46,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:46,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242564857] [2021-11-19 13:26:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:46,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:46,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:46,078 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:46,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 13:26:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:49,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:26:49,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:51,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:51,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:51,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242564857] [2021-11-19 13:26:51,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242564857] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:51,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:51,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:26:51,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345778133] [2021-11-19 13:26:51,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:51,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:51,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:51,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:51,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:51,561 INFO L87 Difference]: Start difference. First operand 4814 states and 6642 transitions. Second operand has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:26:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:52,025 INFO L93 Difference]: Finished difference Result 4814 states and 6642 transitions. [2021-11-19 13:26:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:52,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 155 [2021-11-19 13:26:52,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:52,037 INFO L225 Difference]: With dead ends: 4814 [2021-11-19 13:26:52,037 INFO L226 Difference]: Without dead ends: 4812 [2021-11-19 13:26:52,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:26:52,040 INFO L933 BasicCegarLoop]: 5049 mSDtfsCounter, 4906 mSDsluCounter, 10094 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4908 SdHoareTripleChecker+Valid, 15143 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:52,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4908 Valid, 15143 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:26:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2021-11-19 13:26:52,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2021-11-19 13:26:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 3258 states have (on average 1.2756292203806017) internal successors, (4156), 3393 states have internal predecessors, (4156), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6640 transitions. [2021-11-19 13:26:52,585 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6640 transitions. Word has length 155 [2021-11-19 13:26:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:52,586 INFO L470 AbstractCegarLoop]: Abstraction has 4812 states and 6640 transitions. [2021-11-19 13:26:52,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:26:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6640 transitions. [2021-11-19 13:26:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 13:26:52,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:52,588 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:52,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:52,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:52,789 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:52,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:52,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2056294761, now seen corresponding path program 1 times [2021-11-19 13:26:52,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:52,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444836367] [2021-11-19 13:26:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:52,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:52,792 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:52,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 13:26:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:56,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 3074 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:26:56,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:57,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:26:58,340 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:58,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444836367] [2021-11-19 13:26:58,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444836367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:58,340 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:58,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:26:58,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622355906] [2021-11-19 13:26:58,341 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:58,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:26:58,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:26:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:26:58,342 INFO L87 Difference]: Start difference. First operand 4812 states and 6640 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:26:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:58,813 INFO L93 Difference]: Finished difference Result 4812 states and 6640 transitions. [2021-11-19 13:26:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 161 [2021-11-19 13:26:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:58,891 INFO L225 Difference]: With dead ends: 4812 [2021-11-19 13:26:58,891 INFO L226 Difference]: Without dead ends: 4810 [2021-11-19 13:26:58,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:26:58,893 INFO L933 BasicCegarLoop]: 5047 mSDtfsCounter, 4898 mSDsluCounter, 10090 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 15137 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:58,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4900 Valid, 15137 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:26:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-11-19 13:26:59,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-11-19 13:26:59,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 3257 states have (on average 1.2754068160884249) internal successors, (4154), 3391 states have internal predecessors, (4154), 1238 states have call successors, (1238), 312 states have call predecessors, (1238), 306 states have return successors, (1246), 1206 states have call predecessors, (1246), 1236 states have call successors, (1246) [2021-11-19 13:26:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 6638 transitions. [2021-11-19 13:26:59,375 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 6638 transitions. Word has length 161 [2021-11-19 13:26:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:59,376 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 6638 transitions. [2021-11-19 13:26:59,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:26:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 6638 transitions. [2021-11-19 13:26:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-19 13:26:59,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:59,379 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:59,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:59,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:59,580 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:26:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1201428977, now seen corresponding path program 1 times [2021-11-19 13:26:59,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:59,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829535884] [2021-11-19 13:26:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:59,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:59,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:59,583 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:59,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 13:27:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:03,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:27:03,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:27:04,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:27:05,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:05,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829535884] [2021-11-19 13:27:05,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829535884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:05,278 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:05,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:27:05,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678044546] [2021-11-19 13:27:05,279 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:05,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:27:05,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:27:05,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:27:05,280 INFO L87 Difference]: Start difference. First operand 4810 states and 6638 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:27:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:05,802 INFO L93 Difference]: Finished difference Result 4810 states and 6638 transitions. [2021-11-19 13:27:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:27:05,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 167 [2021-11-19 13:27:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:05,811 INFO L225 Difference]: With dead ends: 4810 [2021-11-19 13:27:05,811 INFO L226 Difference]: Without dead ends: 4462 [2021-11-19 13:27:05,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:27:05,813 INFO L933 BasicCegarLoop]: 5046 mSDtfsCounter, 4889 mSDsluCounter, 5046 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 10092 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:05,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4889 Valid, 10092 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:27:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4462 states. [2021-11-19 13:27:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4462 to 4462. [2021-11-19 13:27:06,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4462 states, 3052 states have (on average 1.2876802096985582) internal successors, (3930), 3170 states have internal predecessors, (3930), 1115 states have call successors, (1115), 292 states have call predecessors, (1115), 287 states have return successors, (1125), 1085 states have call predecessors, (1125), 1115 states have call successors, (1125) [2021-11-19 13:27:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 6170 transitions. [2021-11-19 13:27:06,244 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 6170 transitions. Word has length 167 [2021-11-19 13:27:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:06,244 INFO L470 AbstractCegarLoop]: Abstraction has 4462 states and 6170 transitions. [2021-11-19 13:27:06,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:27:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 6170 transitions. [2021-11-19 13:27:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 13:27:06,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:06,246 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:06,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-11-19 13:27:06,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:06,447 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:27:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2065949500, now seen corresponding path program 1 times [2021-11-19 13:27:06,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:06,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359875986] [2021-11-19 13:27:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:06,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:06,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:06,451 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:06,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 13:27:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:11,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:27:11,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:11,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:12,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:12,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359875986] [2021-11-19 13:27:12,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359875986] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:12,231 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:12,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 13:27:12,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689611035] [2021-11-19 13:27:12,231 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:12,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:27:12,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:12,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:27:12,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:27:12,233 INFO L87 Difference]: Start difference. First operand 4462 states and 6170 transitions. Second operand has 8 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 13:27:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:15,861 INFO L93 Difference]: Finished difference Result 8888 states and 12304 transitions. [2021-11-19 13:27:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:27:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 186 [2021-11-19 13:27:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:15,880 INFO L225 Difference]: With dead ends: 8888 [2021-11-19 13:27:15,880 INFO L226 Difference]: Without dead ends: 4462 [2021-11-19 13:27:15,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:27:15,892 INFO L933 BasicCegarLoop]: 4504 mSDtfsCounter, 96 mSDsluCounter, 22213 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 26717 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 184 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:15,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 26717 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 546 Invalid, 0 Unknown, 184 Unchecked, 3.0s Time] [2021-11-19 13:27:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4462 states. [2021-11-19 13:27:16,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4462 to 4462. [2021-11-19 13:27:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4462 states, 3052 states have (on average 1.2873525557011796) internal successors, (3929), 3170 states have internal predecessors, (3929), 1115 states have call successors, (1115), 292 states have call predecessors, (1115), 287 states have return successors, (1125), 1085 states have call predecessors, (1125), 1115 states have call successors, (1125) [2021-11-19 13:27:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 6169 transitions. [2021-11-19 13:27:16,417 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 6169 transitions. Word has length 186 [2021-11-19 13:27:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:16,418 INFO L470 AbstractCegarLoop]: Abstraction has 4462 states and 6169 transitions. [2021-11-19 13:27:16,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-19 13:27:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 6169 transitions. [2021-11-19 13:27:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 13:27:16,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:16,420 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:16,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-11-19 13:27:16,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:16,623 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:27:16,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:16,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2010163078, now seen corresponding path program 1 times [2021-11-19 13:27:16,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:16,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150793582] [2021-11-19 13:27:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:16,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:16,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:16,627 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:16,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 13:27:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:21,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:27:21,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:22,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:23,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:23,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150793582] [2021-11-19 13:27:23,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150793582] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:23,601 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:23,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-19 13:27:23,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771386104] [2021-11-19 13:27:23,601 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:23,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:27:23,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:27:23,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:27:23,602 INFO L87 Difference]: Start difference. First operand 4462 states and 6169 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:27:25,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:27,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:27:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:43,418 INFO L93 Difference]: Finished difference Result 8956 states and 12473 transitions. [2021-11-19 13:27:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:27:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 186 [2021-11-19 13:27:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:43,431 INFO L225 Difference]: With dead ends: 8956 [2021-11-19 13:27:43,431 INFO L226 Difference]: Without dead ends: 4530 [2021-11-19 13:27:43,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:27:43,443 INFO L933 BasicCegarLoop]: 4602 mSDtfsCounter, 4436 mSDsluCounter, 14991 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4439 SdHoareTripleChecker+Valid, 19593 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:43,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4439 Valid, 19593 Invalid, 3441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3436 Invalid, 2 Unknown, 0 Unchecked, 19.0s Time] [2021-11-19 13:27:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2021-11-19 13:27:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4530. [2021-11-19 13:27:43,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 3100 states have (on average 1.2848387096774194) internal successors, (3983), 3218 states have internal predecessors, (3983), 1125 states have call successors, (1125), 302 states have call predecessors, (1125), 297 states have return successors, (1135), 1095 states have call predecessors, (1135), 1125 states have call successors, (1135) [2021-11-19 13:27:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 6243 transitions. [2021-11-19 13:27:44,005 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 6243 transitions. Word has length 186 [2021-11-19 13:27:44,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:44,005 INFO L470 AbstractCegarLoop]: Abstraction has 4530 states and 6243 transitions. [2021-11-19 13:27:44,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:27:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 6243 transitions. [2021-11-19 13:27:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-19 13:27:44,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:44,009 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:44,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 13:27:44,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:44,221 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:27:44,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2010103496, now seen corresponding path program 1 times [2021-11-19 13:27:44,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:44,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580750480] [2021-11-19 13:27:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:44,224 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:44,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:44,225 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:44,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 13:27:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:48,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:27:48,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:49,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:27:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:27:49,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:27:49,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580750480] [2021-11-19 13:27:49,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580750480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:27:49,614 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:27:49,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-19 13:27:49,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10622017] [2021-11-19 13:27:49,615 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:27:49,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:27:49,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:27:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:27:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:27:49,616 INFO L87 Difference]: Start difference. First operand 4530 states and 6243 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 13:27:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:27:50,558 INFO L93 Difference]: Finished difference Result 4557 states and 6273 transitions. [2021-11-19 13:27:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:27:50,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 186 [2021-11-19 13:27:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:27:50,569 INFO L225 Difference]: With dead ends: 4557 [2021-11-19 13:27:50,569 INFO L226 Difference]: Without dead ends: 4555 [2021-11-19 13:27:50,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:27:50,571 INFO L933 BasicCegarLoop]: 4591 mSDtfsCounter, 68 mSDsluCounter, 22944 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 27535 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:27:50,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 27535 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:27:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4555 states. [2021-11-19 13:27:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 4553. [2021-11-19 13:27:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4553 states, 3117 states have (on average 1.283926852743022) internal successors, (4002), 3235 states have internal predecessors, (4002), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:27:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 6270 transitions. [2021-11-19 13:27:51,009 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 6270 transitions. Word has length 186 [2021-11-19 13:27:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:27:51,010 INFO L470 AbstractCegarLoop]: Abstraction has 4553 states and 6270 transitions. [2021-11-19 13:27:51,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 13:27:51,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 6270 transitions. [2021-11-19 13:27:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-19 13:27:51,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:27:51,012 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:27:51,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-11-19 13:27:51,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:27:51,212 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:27:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:27:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 508883391, now seen corresponding path program 1 times [2021-11-19 13:27:51,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:27:51,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920447238] [2021-11-19 13:27:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:27:51,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:27:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:27:51,216 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:27:51,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 13:27:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:27:55,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:27:55,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:27:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-19 13:27:57,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2021-11-19 13:28:00,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:00,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920447238] [2021-11-19 13:28:00,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920447238] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:28:00,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:28:00,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 31 [2021-11-19 13:28:00,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115200868] [2021-11-19 13:28:00,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:00,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 13:28:00,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:00,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 13:28:00,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:28:00,217 INFO L87 Difference]: Start difference. First operand 4553 states and 6270 transitions. Second operand has 17 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-19 13:28:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:06,579 INFO L93 Difference]: Finished difference Result 6947 states and 9520 transitions. [2021-11-19 13:28:06,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 13:28:06,580 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 231 [2021-11-19 13:28:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:06,592 INFO L225 Difference]: With dead ends: 6947 [2021-11-19 13:28:06,592 INFO L226 Difference]: Without dead ends: 4550 [2021-11-19 13:28:06,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=386, Invalid=1966, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 13:28:06,601 INFO L933 BasicCegarLoop]: 4555 mSDtfsCounter, 84 mSDsluCounter, 68193 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 72748 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:06,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 72748 Invalid, 928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-19 13:28:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-11-19 13:28:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4550. [2021-11-19 13:28:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4550 states, 3114 states have (on average 1.283558124598587) internal successors, (3997), 3232 states have internal predecessors, (3997), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 4550 states and 6265 transitions. [2021-11-19 13:28:07,175 INFO L78 Accepts]: Start accepts. Automaton has 4550 states and 6265 transitions. Word has length 231 [2021-11-19 13:28:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:07,175 INFO L470 AbstractCegarLoop]: Abstraction has 4550 states and 6265 transitions. [2021-11-19 13:28:07,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-19 13:28:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4550 states and 6265 transitions. [2021-11-19 13:28:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 13:28:07,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:07,177 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:07,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:07,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:07,378 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:07,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:07,378 INFO L85 PathProgramCache]: Analyzing trace with hash 212819907, now seen corresponding path program 1 times [2021-11-19 13:28:07,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:07,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874702317] [2021-11-19 13:28:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:07,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:07,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:07,383 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:07,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 13:28:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:12,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 3391 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:28:12,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 13:28:13,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2021-11-19 13:28:14,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:14,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874702317] [2021-11-19 13:28:14,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874702317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:14,202 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:14,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:28:14,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351164154] [2021-11-19 13:28:14,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:14,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:14,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:14,204 INFO L87 Difference]: Start difference. First operand 4550 states and 6265 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-19 13:28:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:17,578 INFO L93 Difference]: Finished difference Result 9060 states and 12479 transitions. [2021-11-19 13:28:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:28:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 203 [2021-11-19 13:28:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:17,591 INFO L225 Difference]: With dead ends: 9060 [2021-11-19 13:28:17,592 INFO L226 Difference]: Without dead ends: 4546 [2021-11-19 13:28:17,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:17,603 INFO L933 BasicCegarLoop]: 4588 mSDtfsCounter, 7388 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1715 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7388 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1715 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:17,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7388 Valid, 4588 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1715 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 13:28:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2021-11-19 13:28:18,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546. [2021-11-19 13:28:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4546 states, 3111 states have (on average 1.2831886853101897) internal successors, (3992), 3228 states have internal predecessors, (3992), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6260 transitions. [2021-11-19 13:28:18,129 INFO L78 Accepts]: Start accepts. Automaton has 4546 states and 6260 transitions. Word has length 203 [2021-11-19 13:28:18,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:18,130 INFO L470 AbstractCegarLoop]: Abstraction has 4546 states and 6260 transitions. [2021-11-19 13:28:18,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-19 13:28:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4546 states and 6260 transitions. [2021-11-19 13:28:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-19 13:28:18,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:18,131 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:18,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:18,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:18,332 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:18,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1806097410, now seen corresponding path program 1 times [2021-11-19 13:28:18,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:18,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346740566] [2021-11-19 13:28:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:18,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:18,336 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:18,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 13:28:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:22,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 3368 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:28:22,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:28:24,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 13:28:25,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:25,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346740566] [2021-11-19 13:28:25,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346740566] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:25,305 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:25,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 13:28:25,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430582165] [2021-11-19 13:28:25,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:25,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:25,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:25,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:25,306 INFO L87 Difference]: Start difference. First operand 4546 states and 6260 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 3 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 13:28:28,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:28,227 INFO L93 Difference]: Finished difference Result 9048 states and 12570 transitions. [2021-11-19 13:28:28,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:28:28,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 3 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 190 [2021-11-19 13:28:28,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:28,240 INFO L225 Difference]: With dead ends: 9048 [2021-11-19 13:28:28,240 INFO L226 Difference]: Without dead ends: 4538 [2021-11-19 13:28:28,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:28,250 INFO L933 BasicCegarLoop]: 4583 mSDtfsCounter, 7242 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7242 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1693 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:28,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7242 Valid, 4583 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1693 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:28:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2021-11-19 13:28:28,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4538. [2021-11-19 13:28:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 3104 states have (on average 1.2818943298969072) internal successors, (3979), 3220 states have internal predecessors, (3979), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6247 transitions. [2021-11-19 13:28:28,776 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6247 transitions. Word has length 190 [2021-11-19 13:28:28,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:28,776 INFO L470 AbstractCegarLoop]: Abstraction has 4538 states and 6247 transitions. [2021-11-19 13:28:28,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 3 states have call successors, (60), 3 states have call predecessors, (60), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-19 13:28:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6247 transitions. [2021-11-19 13:28:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 13:28:28,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:28,778 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:28,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:28,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:28,979 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:28,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash -222237006, now seen corresponding path program 1 times [2021-11-19 13:28:28,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:28,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884392767] [2021-11-19 13:28:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:28,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:28,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:28,985 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:28,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 13:28:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:34,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:28:34,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-19 13:28:34,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-19 13:28:35,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:35,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884392767] [2021-11-19 13:28:35,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884392767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:35,471 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:35,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:28:35,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045400310] [2021-11-19 13:28:35,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:35,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:28:35,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:28:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:35,473 INFO L87 Difference]: Start difference. First operand 4538 states and 6247 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 13:28:36,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:36,744 INFO L93 Difference]: Finished difference Result 9036 states and 12443 transitions. [2021-11-19 13:28:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:28:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 209 [2021-11-19 13:28:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:36,755 INFO L225 Difference]: With dead ends: 9036 [2021-11-19 13:28:36,755 INFO L226 Difference]: Without dead ends: 4534 [2021-11-19 13:28:36,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:28:36,763 INFO L933 BasicCegarLoop]: 4578 mSDtfsCounter, 4546 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:36,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4546 Valid, 4578 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:28:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-11-19 13:28:37,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 4534. [2021-11-19 13:28:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4534 states, 3101 states have (on average 1.2815220896485005) internal successors, (3974), 3216 states have internal predecessors, (3974), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 6242 transitions. [2021-11-19 13:28:37,229 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 6242 transitions. Word has length 209 [2021-11-19 13:28:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:37,230 INFO L470 AbstractCegarLoop]: Abstraction has 4534 states and 6242 transitions. [2021-11-19 13:28:37,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-19 13:28:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 6242 transitions. [2021-11-19 13:28:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-19 13:28:37,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:37,233 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:37,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:37,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:37,449 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:37,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash -904848676, now seen corresponding path program 1 times [2021-11-19 13:28:37,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:37,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359677323] [2021-11-19 13:28:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:37,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:37,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:37,453 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:37,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 13:28:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:41,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 3563 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:28:41,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-19 13:28:43,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-19 13:28:44,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:44,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359677323] [2021-11-19 13:28:44,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359677323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:28:44,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:28:44,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 13:28:44,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344529489] [2021-11-19 13:28:44,344 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:44,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:28:44,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:44,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:28:44,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:28:44,346 INFO L87 Difference]: Start difference. First operand 4534 states and 6242 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-19 13:28:44,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:44,882 INFO L93 Difference]: Finished difference Result 8793 states and 12076 transitions. [2021-11-19 13:28:44,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:28:44,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 254 [2021-11-19 13:28:44,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:44,893 INFO L225 Difference]: With dead ends: 8793 [2021-11-19 13:28:44,893 INFO L226 Difference]: Without dead ends: 4534 [2021-11-19 13:28:44,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:28:44,901 INFO L933 BasicCegarLoop]: 4577 mSDtfsCounter, 4456 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4456 SdHoareTripleChecker+Valid, 4577 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:44,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4456 Valid, 4577 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:28:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-11-19 13:28:45,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 4534. [2021-11-19 13:28:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4534 states, 3101 states have (on average 1.2811996130280554) internal successors, (3973), 3216 states have internal predecessors, (3973), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 6241 transitions. [2021-11-19 13:28:45,382 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 6241 transitions. Word has length 254 [2021-11-19 13:28:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:45,382 INFO L470 AbstractCegarLoop]: Abstraction has 4534 states and 6241 transitions. [2021-11-19 13:28:45,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-19 13:28:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 6241 transitions. [2021-11-19 13:28:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-19 13:28:45,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:45,385 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:45,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:45,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:45,585 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:45,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:45,586 INFO L85 PathProgramCache]: Analyzing trace with hash 992648090, now seen corresponding path program 1 times [2021-11-19 13:28:45,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:45,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103392852] [2021-11-19 13:28:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:45,589 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:45,589 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:45,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-19 13:28:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:28:50,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 3561 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-19 13:28:50,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:28:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-19 13:28:51,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:28:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 18 proven. 26 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-11-19 13:28:54,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:28:54,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103392852] [2021-11-19 13:28:54,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103392852] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:28:54,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:28:54,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 13:28:54,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145215042] [2021-11-19 13:28:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:28:54,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:28:54,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:28:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:28:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:28:54,462 INFO L87 Difference]: Start difference. First operand 4534 states and 6241 transitions. Second operand has 12 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 6 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 13:28:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:28:57,621 INFO L93 Difference]: Finished difference Result 9303 states and 12855 transitions. [2021-11-19 13:28:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 13:28:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 6 states have call predecessors, (36), 4 states have call successors, (36) Word has length 254 [2021-11-19 13:28:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:28:57,635 INFO L225 Difference]: With dead ends: 9303 [2021-11-19 13:28:57,635 INFO L226 Difference]: Without dead ends: 5057 [2021-11-19 13:28:57,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:28:57,644 INFO L933 BasicCegarLoop]: 5327 mSDtfsCounter, 572 mSDsluCounter, 41745 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 47072 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:28:57,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 47072 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 13:28:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5057 states. [2021-11-19 13:28:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5057 to 4534. [2021-11-19 13:28:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4534 states, 3101 states have (on average 1.2808771364076104) internal successors, (3972), 3215 states have internal predecessors, (3972), 1129 states have call successors, (1129), 304 states have call predecessors, (1129), 299 states have return successors, (1139), 1099 states have call predecessors, (1139), 1129 states have call successors, (1139) [2021-11-19 13:28:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 4534 states and 6240 transitions. [2021-11-19 13:28:58,227 INFO L78 Accepts]: Start accepts. Automaton has 4534 states and 6240 transitions. Word has length 254 [2021-11-19 13:28:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:28:58,227 INFO L470 AbstractCegarLoop]: Abstraction has 4534 states and 6240 transitions. [2021-11-19 13:28:58,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (36), 6 states have call predecessors, (36), 4 states have call successors, (36) [2021-11-19 13:28:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4534 states and 6240 transitions. [2021-11-19 13:28:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-19 13:28:58,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:28:58,231 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:58,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-19 13:28:58,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:28:58,431 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:28:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:28:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -216032003, now seen corresponding path program 1 times [2021-11-19 13:28:58,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:28:58,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775719538] [2021-11-19 13:28:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:28:58,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:28:58,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:28:58,435 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:28:58,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 13:29:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:03,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:29:03,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-19 13:29:03,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-11-19 13:29:04,297 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:04,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775719538] [2021-11-19 13:29:04,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775719538] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:04,297 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:04,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:29:04,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568860459] [2021-11-19 13:29:04,298 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:04,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:29:04,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:04,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:29:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:29:04,301 INFO L87 Difference]: Start difference. First operand 4534 states and 6240 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2021-11-19 13:29:04,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:04,813 INFO L93 Difference]: Finished difference Result 4534 states and 6240 transitions. [2021-11-19 13:29:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:29:04,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 258 [2021-11-19 13:29:04,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:04,824 INFO L225 Difference]: With dead ends: 4534 [2021-11-19 13:29:04,824 INFO L226 Difference]: Without dead ends: 4337 [2021-11-19 13:29:04,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:29:04,827 INFO L933 BasicCegarLoop]: 4573 mSDtfsCounter, 26 mSDsluCounter, 9134 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13707 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:04,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 13707 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:29:04,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2021-11-19 13:29:05,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4337. [2021-11-19 13:29:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 2975 states have (on average 1.281344537815126) internal successors, (3812), 3078 states have internal predecessors, (3812), 1065 states have call successors, (1065), 298 states have call predecessors, (1065), 293 states have return successors, (1075), 1038 states have call predecessors, (1075), 1065 states have call successors, (1075) [2021-11-19 13:29:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 5952 transitions. [2021-11-19 13:29:05,351 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 5952 transitions. Word has length 258 [2021-11-19 13:29:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:05,352 INFO L470 AbstractCegarLoop]: Abstraction has 4337 states and 5952 transitions. [2021-11-19 13:29:05,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2021-11-19 13:29:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 5952 transitions. [2021-11-19 13:29:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-19 13:29:05,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:05,355 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:05,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:05,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:05,561 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:29:05,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:05,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2051780867, now seen corresponding path program 1 times [2021-11-19 13:29:05,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:05,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777095008] [2021-11-19 13:29:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:05,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:05,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:05,565 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:05,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 13:29:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:10,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 3580 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:29:10,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-19 13:29:12,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-19 13:29:14,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:14,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777095008] [2021-11-19 13:29:14,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777095008] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:14,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:14,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 16] imperfect sequences [] total 29 [2021-11-19 13:29:14,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719228898] [2021-11-19 13:29:14,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:14,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 13:29:14,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:14,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 13:29:14,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-11-19 13:29:14,942 INFO L87 Difference]: Start difference. First operand 4337 states and 5952 transitions. Second operand has 29 states, 27 states have (on average 5.148148148148148) internal successors, (139), 25 states have internal predecessors, (139), 10 states have call successors, (45), 2 states have call predecessors, (45), 7 states have return successors, (42), 12 states have call predecessors, (42), 10 states have call successors, (42) [2021-11-19 13:29:24,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:24,447 INFO L93 Difference]: Finished difference Result 9856 states and 13723 transitions. [2021-11-19 13:29:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 13:29:24,448 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.148148148148148) internal successors, (139), 25 states have internal predecessors, (139), 10 states have call successors, (45), 2 states have call predecessors, (45), 7 states have return successors, (42), 12 states have call predecessors, (42), 10 states have call successors, (42) Word has length 265 [2021-11-19 13:29:24,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:24,462 INFO L225 Difference]: With dead ends: 9856 [2021-11-19 13:29:24,462 INFO L226 Difference]: Without dead ends: 5554 [2021-11-19 13:29:24,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 13:29:24,471 INFO L933 BasicCegarLoop]: 6031 mSDtfsCounter, 5146 mSDsluCounter, 101352 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 1864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 107383 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1864 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:24,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5347 Valid, 107383 Invalid, 3376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1864 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-19 13:29:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2021-11-19 13:29:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 4355. [2021-11-19 13:29:25,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 2988 states have (on average 1.2801204819277108) internal successors, (3825), 3091 states have internal predecessors, (3825), 1069 states have call successors, (1069), 298 states have call predecessors, (1069), 294 states have return successors, (1081), 1043 states have call predecessors, (1081), 1069 states have call successors, (1081) [2021-11-19 13:29:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 5975 transitions. [2021-11-19 13:29:25,017 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 5975 transitions. Word has length 265 [2021-11-19 13:29:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:25,017 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 5975 transitions. [2021-11-19 13:29:25,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.148148148148148) internal successors, (139), 25 states have internal predecessors, (139), 10 states have call successors, (45), 2 states have call predecessors, (45), 7 states have return successors, (42), 12 states have call predecessors, (42), 10 states have call successors, (42) [2021-11-19 13:29:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 5975 transitions. [2021-11-19 13:29:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-19 13:29:25,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:25,022 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:25,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:25,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:25,222 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:29:25,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 854297311, now seen corresponding path program 1 times [2021-11-19 13:29:25,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:25,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513437447] [2021-11-19 13:29:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:25,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:25,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:25,227 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:25,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-19 13:29:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:30,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 3824 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 13:29:30,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-11-19 13:29:32,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-11-19 13:29:35,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:35,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513437447] [2021-11-19 13:29:35,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513437447] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:35,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:35,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-19 13:29:35,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375683660] [2021-11-19 13:29:35,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:35,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 13:29:35,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:35,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 13:29:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:29:35,247 INFO L87 Difference]: Start difference. First operand 4355 states and 5975 transitions. Second operand has 22 states, 22 states have (on average 7.181818181818182) internal successors, (158), 18 states have internal predecessors, (158), 4 states have call successors, (49), 2 states have call predecessors, (49), 6 states have return successors, (46), 8 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 13:29:39,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:29:39,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:39,859 INFO L93 Difference]: Finished difference Result 8435 states and 11549 transitions. [2021-11-19 13:29:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 13:29:39,860 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.181818181818182) internal successors, (158), 18 states have internal predecessors, (158), 4 states have call successors, (49), 2 states have call predecessors, (49), 6 states have return successors, (46), 8 states have call predecessors, (46), 4 states have call successors, (46) Word has length 312 [2021-11-19 13:29:39,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:39,880 INFO L225 Difference]: With dead ends: 8435 [2021-11-19 13:29:39,880 INFO L226 Difference]: Without dead ends: 4387 [2021-11-19 13:29:39,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2021-11-19 13:29:39,892 INFO L933 BasicCegarLoop]: 4295 mSDtfsCounter, 50 mSDsluCounter, 55820 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 60115 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:39,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 60115 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-19 13:29:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2021-11-19 13:29:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4369. [2021-11-19 13:29:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 2999 states have (on average 1.2790930310103368) internal successors, (3836), 3102 states have internal predecessors, (3836), 1070 states have call successors, (1070), 298 states have call predecessors, (1070), 296 states have return successors, (1085), 1046 states have call predecessors, (1085), 1070 states have call successors, (1085) [2021-11-19 13:29:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 5991 transitions. [2021-11-19 13:29:40,467 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 5991 transitions. Word has length 312 [2021-11-19 13:29:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:40,468 INFO L470 AbstractCegarLoop]: Abstraction has 4369 states and 5991 transitions. [2021-11-19 13:29:40,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.181818181818182) internal successors, (158), 18 states have internal predecessors, (158), 4 states have call successors, (49), 2 states have call predecessors, (49), 6 states have return successors, (46), 8 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 13:29:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 5991 transitions. [2021-11-19 13:29:40,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-19 13:29:40,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:40,472 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:40,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:40,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:40,672 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:29:40,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash -554920638, now seen corresponding path program 1 times [2021-11-19 13:29:40,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:40,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412271394] [2021-11-19 13:29:40,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:40,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:40,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:40,676 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:40,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 13:29:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:46,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 3727 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:29:46,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-11-19 13:29:47,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-19 13:29:47,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:47,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412271394] [2021-11-19 13:29:47,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412271394] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:47,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:47,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 13:29:47,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862316051] [2021-11-19 13:29:47,774 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:47,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:29:47,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:47,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:29:47,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:29:47,775 INFO L87 Difference]: Start difference. First operand 4369 states and 5991 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 13:29:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:48,636 INFO L93 Difference]: Finished difference Result 8712 states and 11960 transitions. [2021-11-19 13:29:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:29:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 315 [2021-11-19 13:29:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:48,647 INFO L225 Difference]: With dead ends: 8712 [2021-11-19 13:29:48,648 INFO L226 Difference]: Without dead ends: 4379 [2021-11-19 13:29:48,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:29:48,657 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 32 mSDsluCounter, 12877 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17178 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:48,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 17178 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:29:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2021-11-19 13:29:49,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4373. [2021-11-19 13:29:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4373 states, 3002 states have (on average 1.2788141239173885) internal successors, (3839), 3105 states have internal predecessors, (3839), 1071 states have call successors, (1071), 298 states have call predecessors, (1071), 296 states have return successors, (1086), 1047 states have call predecessors, (1086), 1071 states have call successors, (1086) [2021-11-19 13:29:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 5996 transitions. [2021-11-19 13:29:49,221 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 5996 transitions. Word has length 315 [2021-11-19 13:29:49,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:49,221 INFO L470 AbstractCegarLoop]: Abstraction has 4373 states and 5996 transitions. [2021-11-19 13:29:49,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 13:29:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 5996 transitions. [2021-11-19 13:29:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-19 13:29:49,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:49,225 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:49,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:49,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:49,426 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:29:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:49,426 INFO L85 PathProgramCache]: Analyzing trace with hash -21001215, now seen corresponding path program 1 times [2021-11-19 13:29:49,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:49,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111266672] [2021-11-19 13:29:49,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:49,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:49,431 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:49,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 13:29:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:54,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 3740 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-19 13:29:54,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 128 proven. 21 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 13:29:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-11-19 13:30:03,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:03,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111266672] [2021-11-19 13:30:03,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111266672] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:03,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1906573405] [2021-11-19 13:30:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:03,183 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:30:03,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:30:03,184 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:30:03,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2021-11-19 13:30:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:05,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 3740 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:30:05,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-19 13:30:06,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-19 13:30:07,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1906573405] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:07,370 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:30:07,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [17, 15] total 30 [2021-11-19 13:30:07,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827357138] [2021-11-19 13:30:07,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:07,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:30:07,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:30:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:30:07,372 INFO L87 Difference]: Start difference. First operand 4373 states and 5996 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-19 13:30:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:08,114 INFO L93 Difference]: Finished difference Result 8742 states and 12001 transitions. [2021-11-19 13:30:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:30:08,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 320 [2021-11-19 13:30:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:08,126 INFO L225 Difference]: With dead ends: 8742 [2021-11-19 13:30:08,126 INFO L226 Difference]: Without dead ends: 4405 [2021-11-19 13:30:08,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1278 GetRequests, 1249 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:30:08,136 INFO L933 BasicCegarLoop]: 4336 mSDtfsCounter, 35 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12965 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:08,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 12965 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:30:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4405 states. [2021-11-19 13:30:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4405 to 4375. [2021-11-19 13:30:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 3004 states have (on average 1.2786284953395473) internal successors, (3841), 3107 states have internal predecessors, (3841), 1071 states have call successors, (1071), 298 states have call predecessors, (1071), 296 states have return successors, (1086), 1047 states have call predecessors, (1086), 1071 states have call successors, (1086) [2021-11-19 13:30:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5998 transitions. [2021-11-19 13:30:08,842 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5998 transitions. Word has length 320 [2021-11-19 13:30:08,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:08,842 INFO L470 AbstractCegarLoop]: Abstraction has 4375 states and 5998 transitions. [2021-11-19 13:30:08,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-19 13:30:08,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5998 transitions. [2021-11-19 13:30:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-19 13:30:08,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:08,846 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:08,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:09,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:09,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:30:09,261 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:30:09,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:09,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1899081042, now seen corresponding path program 1 times [2021-11-19 13:30:09,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:09,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673107126] [2021-11-19 13:30:09,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:09,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:09,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:09,265 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:09,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 13:30:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:15,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 3768 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:30:15,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-11-19 13:30:16,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-11-19 13:30:17,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:17,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673107126] [2021-11-19 13:30:17,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673107126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:17,312 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:17,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 13:30:17,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990297856] [2021-11-19 13:30:17,312 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:17,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:30:17,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:17,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:30:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:30:17,313 INFO L87 Difference]: Start difference. First operand 4375 states and 5998 transitions. Second operand has 8 states, 6 states have (on average 33.333333333333336) internal successors, (200), 7 states have internal predecessors, (200), 4 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-19 13:30:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:20,273 INFO L93 Difference]: Finished difference Result 8714 states and 11958 transitions. [2021-11-19 13:30:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:30:20,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 33.333333333333336) internal successors, (200), 7 states have internal predecessors, (200), 4 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 329 [2021-11-19 13:30:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:20,289 INFO L225 Difference]: With dead ends: 8714 [2021-11-19 13:30:20,289 INFO L226 Difference]: Without dead ends: 4375 [2021-11-19 13:30:20,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:30:20,298 INFO L933 BasicCegarLoop]: 4215 mSDtfsCounter, 33 mSDsluCounter, 20935 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 25150 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:20,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 25150 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 451 Invalid, 0 Unknown, 180 Unchecked, 2.3s Time] [2021-11-19 13:30:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2021-11-19 13:30:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 4375. [2021-11-19 13:30:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 3004 states have (on average 1.2782956058588548) internal successors, (3840), 3107 states have internal predecessors, (3840), 1071 states have call successors, (1071), 298 states have call predecessors, (1071), 296 states have return successors, (1086), 1047 states have call predecessors, (1086), 1071 states have call successors, (1086) [2021-11-19 13:30:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5997 transitions. [2021-11-19 13:30:20,874 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5997 transitions. Word has length 329 [2021-11-19 13:30:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:20,874 INFO L470 AbstractCegarLoop]: Abstraction has 4375 states and 5997 transitions. [2021-11-19 13:30:20,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 33.333333333333336) internal successors, (200), 7 states have internal predecessors, (200), 4 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2021-11-19 13:30:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5997 transitions. [2021-11-19 13:30:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-19 13:30:20,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:20,878 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:20,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:21,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:21,079 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:30:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash 102805228, now seen corresponding path program 1 times [2021-11-19 13:30:21,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:21,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322076871] [2021-11-19 13:30:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:21,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:21,083 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:21,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 13:30:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:27,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 3768 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:30:27,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-19 13:30:28,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-11-19 13:30:31,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:31,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322076871] [2021-11-19 13:30:31,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322076871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:31,834 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:31,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 17] imperfect sequences [] total 31 [2021-11-19 13:30:31,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094807107] [2021-11-19 13:30:31,835 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:31,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-19 13:30:31,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 13:30:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:30:31,837 INFO L87 Difference]: Start difference. First operand 4375 states and 5997 transitions. Second operand has 31 states, 29 states have (on average 6.344827586206897) internal successors, (184), 27 states have internal predecessors, (184), 10 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (50), 12 states have call predecessors, (50), 10 states have call successors, (50) [2021-11-19 13:30:36,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:30:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:56,846 INFO L93 Difference]: Finished difference Result 10556 states and 14767 transitions. [2021-11-19 13:30:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-19 13:30:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 6.344827586206897) internal successors, (184), 27 states have internal predecessors, (184), 10 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (50), 12 states have call predecessors, (50), 10 states have call successors, (50) Word has length 329 [2021-11-19 13:30:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:56,865 INFO L225 Difference]: With dead ends: 10556 [2021-11-19 13:30:56,865 INFO L226 Difference]: Without dead ends: 6216 [2021-11-19 13:30:56,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=446, Invalid=3336, Unknown=0, NotChecked=0, Total=3782 [2021-11-19 13:30:56,876 INFO L933 BasicCegarLoop]: 6956 mSDtfsCounter, 6173 mSDsluCounter, 147883 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 2900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6374 SdHoareTripleChecker+Valid, 154839 SdHoareTripleChecker+Invalid, 6730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2900 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:56,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6374 Valid, 154839 Invalid, 6730 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2900 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2021-11-19 13:30:56,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2021-11-19 13:30:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 4376. [2021-11-19 13:30:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 3005 states have (on average 1.2782029950083196) internal successors, (3841), 3108 states have internal predecessors, (3841), 1071 states have call successors, (1071), 298 states have call predecessors, (1071), 296 states have return successors, (1086), 1047 states have call predecessors, (1086), 1071 states have call successors, (1086) [2021-11-19 13:30:57,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 5998 transitions. [2021-11-19 13:30:57,593 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 5998 transitions. Word has length 329 [2021-11-19 13:30:57,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:57,594 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 5998 transitions. [2021-11-19 13:30:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 6.344827586206897) internal successors, (184), 27 states have internal predecessors, (184), 10 states have call successors, (53), 2 states have call predecessors, (53), 7 states have return successors, (50), 12 states have call predecessors, (50), 10 states have call successors, (50) [2021-11-19 13:30:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 5998 transitions. [2021-11-19 13:30:57,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-19 13:30:57,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:57,598 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:57,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:57,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:57,799 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:30:57,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1411608973, now seen corresponding path program 1 times [2021-11-19 13:30:57,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:57,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983383730] [2021-11-19 13:30:57,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:57,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:57,804 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:57,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 13:31:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:04,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 3935 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:31:04,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-19 13:31:05,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-11-19 13:31:06,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:06,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983383730] [2021-11-19 13:31:06,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983383730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:06,270 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:06,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:31:06,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512059579] [2021-11-19 13:31:06,270 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:06,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:31:06,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:31:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:31:06,271 INFO L87 Difference]: Start difference. First operand 4376 states and 5998 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 13:31:08,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:31:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:09,292 INFO L93 Difference]: Finished difference Result 8725 states and 11970 transitions. [2021-11-19 13:31:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:31:09,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 352 [2021-11-19 13:31:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:09,304 INFO L225 Difference]: With dead ends: 8725 [2021-11-19 13:31:09,304 INFO L226 Difference]: Without dead ends: 4385 [2021-11-19 13:31:09,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:31:09,315 INFO L933 BasicCegarLoop]: 4304 mSDtfsCounter, 16 mSDsluCounter, 12904 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17208 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:09,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 17208 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:31:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2021-11-19 13:31:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 4378. [2021-11-19 13:31:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4378 states, 3007 states have (on average 1.278017958097772) internal successors, (3843), 3110 states have internal predecessors, (3843), 1071 states have call successors, (1071), 298 states have call predecessors, (1071), 296 states have return successors, (1086), 1047 states have call predecessors, (1086), 1071 states have call successors, (1086) [2021-11-19 13:31:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6000 transitions. [2021-11-19 13:31:09,853 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6000 transitions. Word has length 352 [2021-11-19 13:31:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:09,854 INFO L470 AbstractCegarLoop]: Abstraction has 4378 states and 6000 transitions. [2021-11-19 13:31:09,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 13:31:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6000 transitions. [2021-11-19 13:31:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-19 13:31:09,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:09,859 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:09,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:10,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:10,060 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:31:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1535822462, now seen corresponding path program 1 times [2021-11-19 13:31:10,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:10,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838086204] [2021-11-19 13:31:10,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:10,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:10,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:10,065 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:10,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 13:31:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:16,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 3999 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:31:16,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-19 13:31:17,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-19 13:31:20,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:20,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838086204] [2021-11-19 13:31:20,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838086204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:20,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:20,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 13:31:20,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695804023] [2021-11-19 13:31:20,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:20,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 13:31:20,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 13:31:20,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:31:20,422 INFO L87 Difference]: Start difference. First operand 4378 states and 6000 transitions. Second operand has 18 states, 18 states have (on average 11.666666666666666) internal successors, (210), 14 states have internal predecessors, (210), 4 states have call successors, (73), 2 states have call predecessors, (73), 6 states have return successors, (67), 8 states have call predecessors, (67), 4 states have call successors, (67) [2021-11-19 13:31:22,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:22,969 INFO L93 Difference]: Finished difference Result 8740 states and 11991 transitions. [2021-11-19 13:31:22,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:31:22,970 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.666666666666666) internal successors, (210), 14 states have internal predecessors, (210), 4 states have call successors, (73), 2 states have call predecessors, (73), 6 states have return successors, (67), 8 states have call predecessors, (67), 4 states have call successors, (67) Word has length 369 [2021-11-19 13:31:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:22,982 INFO L225 Difference]: With dead ends: 8740 [2021-11-19 13:31:22,982 INFO L226 Difference]: Without dead ends: 4398 [2021-11-19 13:31:22,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 739 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:31:22,994 INFO L933 BasicCegarLoop]: 4312 mSDtfsCounter, 20 mSDsluCounter, 56015 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60327 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:22,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 60327 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 13:31:22,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2021-11-19 13:31:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 4386. [2021-11-19 13:31:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3013 states have (on average 1.2774643212744772) internal successors, (3849), 3115 states have internal predecessors, (3849), 1072 states have call successors, (1072), 298 states have call predecessors, (1072), 297 states have return successors, (1091), 1050 states have call predecessors, (1091), 1072 states have call successors, (1091) [2021-11-19 13:31:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 6012 transitions. [2021-11-19 13:31:23,611 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 6012 transitions. Word has length 369 [2021-11-19 13:31:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:23,612 INFO L470 AbstractCegarLoop]: Abstraction has 4386 states and 6012 transitions. [2021-11-19 13:31:23,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.666666666666666) internal successors, (210), 14 states have internal predecessors, (210), 4 states have call successors, (73), 2 states have call predecessors, (73), 6 states have return successors, (67), 8 states have call predecessors, (67), 4 states have call successors, (67) [2021-11-19 13:31:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 6012 transitions. [2021-11-19 13:31:23,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-19 13:31:23,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:23,616 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:23,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2021-11-19 13:31:23,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:23,817 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:31:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash 695917521, now seen corresponding path program 1 times [2021-11-19 13:31:23,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:23,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878386435] [2021-11-19 13:31:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:23,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:23,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:23,822 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:23,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 13:31:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:28,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 3740 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:31:28,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-11-19 13:31:29,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2021-11-19 13:31:30,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:30,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878386435] [2021-11-19 13:31:30,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878386435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:30,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:30,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:31:30,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669876243] [2021-11-19 13:31:30,404 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:30,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:31:30,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:30,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:31:30,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:31:30,405 INFO L87 Difference]: Start difference. First operand 4386 states and 6012 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-19 13:31:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:32,216 INFO L93 Difference]: Finished difference Result 7260 states and 10014 transitions. [2021-11-19 13:31:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:31:32,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 371 [2021-11-19 13:31:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:32,232 INFO L225 Difference]: With dead ends: 7260 [2021-11-19 13:31:32,232 INFO L226 Difference]: Without dead ends: 5021 [2021-11-19 13:31:32,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:31:32,239 INFO L933 BasicCegarLoop]: 4745 mSDtfsCounter, 1028 mSDsluCounter, 14062 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 18807 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:32,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 18807 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:31:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2021-11-19 13:31:32,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 4388. [2021-11-19 13:31:32,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 3015 states have (on average 1.2772802653399669) internal successors, (3851), 3117 states have internal predecessors, (3851), 1072 states have call successors, (1072), 298 states have call predecessors, (1072), 297 states have return successors, (1091), 1050 states have call predecessors, (1091), 1072 states have call successors, (1091) [2021-11-19 13:31:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 6014 transitions. [2021-11-19 13:31:32,795 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 6014 transitions. Word has length 371 [2021-11-19 13:31:32,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:32,796 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 6014 transitions. [2021-11-19 13:31:32,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-19 13:31:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 6014 transitions. [2021-11-19 13:31:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-11-19 13:31:32,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:32,800 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:32,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:33,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:33,001 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:31:33,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash 339045817, now seen corresponding path program 1 times [2021-11-19 13:31:33,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:33,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896913375] [2021-11-19 13:31:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:33,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:33,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:33,005 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:33,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-19 13:31:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:37,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 3806 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:31:37,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2021-11-19 13:31:39,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2021-11-19 13:31:42,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:42,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896913375] [2021-11-19 13:31:42,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896913375] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:42,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:31:42,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [16] total 29 [2021-11-19 13:31:42,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641685190] [2021-11-19 13:31:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:42,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:31:42,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:31:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-11-19 13:31:42,422 INFO L87 Difference]: Start difference. First operand 4388 states and 6014 transitions. Second operand has 16 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) [2021-11-19 13:31:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:47,324 INFO L93 Difference]: Finished difference Result 6577 states and 8963 transitions. [2021-11-19 13:31:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 13:31:47,324 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) Word has length 392 [2021-11-19 13:31:47,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:47,337 INFO L225 Difference]: With dead ends: 6577 [2021-11-19 13:31:47,337 INFO L226 Difference]: Without dead ends: 4386 [2021-11-19 13:31:47,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=216, Invalid=1266, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 13:31:47,343 INFO L933 BasicCegarLoop]: 4261 mSDtfsCounter, 45 mSDsluCounter, 59561 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 63822 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:47,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 63822 Invalid, 805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 13:31:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2021-11-19 13:31:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4386. [2021-11-19 13:31:47,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3013 states have (on average 1.2771324261533354) internal successors, (3848), 3115 states have internal predecessors, (3848), 1072 states have call successors, (1072), 298 states have call predecessors, (1072), 297 states have return successors, (1091), 1050 states have call predecessors, (1091), 1072 states have call successors, (1091) [2021-11-19 13:31:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 6011 transitions. [2021-11-19 13:31:48,001 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 6011 transitions. Word has length 392 [2021-11-19 13:31:48,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:48,002 INFO L470 AbstractCegarLoop]: Abstraction has 4386 states and 6011 transitions. [2021-11-19 13:31:48,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.333333333333334) internal successors, (155), 15 states have internal predecessors, (155), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) [2021-11-19 13:31:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 6011 transitions. [2021-11-19 13:31:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-19 13:31:48,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:48,006 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:48,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:48,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:48,206 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:31:48,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1960057001, now seen corresponding path program 1 times [2021-11-19 13:31:48,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:48,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783166090] [2021-11-19 13:31:48,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:48,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:48,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:48,211 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:48,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 13:31:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:54,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 3882 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:31:54,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-11-19 13:31:55,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-11-19 13:31:56,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:56,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783166090] [2021-11-19 13:31:56,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783166090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:56,311 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:56,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 13:31:56,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218296110] [2021-11-19 13:31:56,311 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:56,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:31:56,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:31:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:31:56,312 INFO L87 Difference]: Start difference. First operand 4386 states and 6011 transitions. Second operand has 8 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 4 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (53), 3 states have call predecessors, (53), 4 states have call successors, (53) [2021-11-19 13:31:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:59,171 INFO L93 Difference]: Finished difference Result 8471 states and 11585 transitions. [2021-11-19 13:31:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:31:59,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 4 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (53), 3 states have call predecessors, (53), 4 states have call successors, (53) Word has length 352 [2021-11-19 13:31:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:59,185 INFO L225 Difference]: With dead ends: 8471 [2021-11-19 13:31:59,185 INFO L226 Difference]: Without dead ends: 4392 [2021-11-19 13:31:59,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 696 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:31:59,194 INFO L933 BasicCegarLoop]: 4216 mSDtfsCounter, 27 mSDsluCounter, 20861 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 25077 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:59,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 25077 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 543 Invalid, 0 Unknown, 180 Unchecked, 2.2s Time] [2021-11-19 13:31:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2021-11-19 13:31:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 4386. [2021-11-19 13:31:59,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3013 states have (on average 1.276800531032194) internal successors, (3847), 3115 states have internal predecessors, (3847), 1072 states have call successors, (1072), 298 states have call predecessors, (1072), 297 states have return successors, (1091), 1050 states have call predecessors, (1091), 1072 states have call successors, (1091) [2021-11-19 13:31:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 6010 transitions. [2021-11-19 13:31:59,839 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 6010 transitions. Word has length 352 [2021-11-19 13:31:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:59,839 INFO L470 AbstractCegarLoop]: Abstraction has 4386 states and 6010 transitions. [2021-11-19 13:31:59,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 4 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (53), 3 states have call predecessors, (53), 4 states have call successors, (53) [2021-11-19 13:31:59,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 6010 transitions. [2021-11-19 13:31:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-19 13:31:59,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:59,843 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:59,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:00,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:32:00,044 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:32:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:00,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1536410279, now seen corresponding path program 1 times [2021-11-19 13:32:00,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:00,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092747073] [2021-11-19 13:32:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:00,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:00,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:00,049 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:00,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 13:32:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 3882 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:32:06,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:09,642 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-11-19 13:32:09,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-11-19 13:32:11,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:11,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092747073] [2021-11-19 13:32:11,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092747073] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:32:11,067 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:32:11,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 13:32:11,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885914737] [2021-11-19 13:32:11,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:32:11,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:32:11,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:32:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:32:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:32:11,069 INFO L87 Difference]: Start difference. First operand 4386 states and 6010 transitions. Second operand has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 5 states have internal predecessors, (241), 2 states have call successors, (103), 4 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2021-11-19 13:32:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:12,213 INFO L93 Difference]: Finished difference Result 7833 states and 10634 transitions. [2021-11-19 13:32:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:32:12,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 5 states have internal predecessors, (241), 2 states have call successors, (103), 4 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 352 [2021-11-19 13:32:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:12,234 INFO L225 Difference]: With dead ends: 7833 [2021-11-19 13:32:12,235 INFO L226 Difference]: Without dead ends: 7831 [2021-11-19 13:32:12,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:32:12,238 INFO L933 BasicCegarLoop]: 5112 mSDtfsCounter, 3921 mSDsluCounter, 18391 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 23503 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:12,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3925 Valid, 23503 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:12,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7831 states. [2021-11-19 13:32:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 7817. [2021-11-19 13:32:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7817 states, 5385 states have (on average 1.275766016713092) internal successors, (6870), 5549 states have internal predecessors, (6870), 1855 states have call successors, (1855), 580 states have call predecessors, (1855), 573 states have return successors, (1897), 1809 states have call predecessors, (1897), 1855 states have call successors, (1897) [2021-11-19 13:32:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 10622 transitions. [2021-11-19 13:32:13,214 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 10622 transitions. Word has length 352 [2021-11-19 13:32:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:13,214 INFO L470 AbstractCegarLoop]: Abstraction has 7817 states and 10622 transitions. [2021-11-19 13:32:13,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 5 states have internal predecessors, (241), 2 states have call successors, (103), 4 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2021-11-19 13:32:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 10622 transitions. [2021-11-19 13:32:13,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-19 13:32:13,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:13,219 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:13,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:13,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:32:13,420 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:32:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1887135492, now seen corresponding path program 1 times [2021-11-19 13:32:13,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:13,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639495447] [2021-11-19 13:32:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:13,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:13,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:13,424 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:13,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 13:32:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:18,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 3803 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:32:18,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:19,716 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2021-11-19 13:32:19,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2021-11-19 13:32:20,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:20,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639495447] [2021-11-19 13:32:20,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639495447] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:20,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:32:20,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2021-11-19 13:32:20,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234013289] [2021-11-19 13:32:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:32:20,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:32:20,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:32:20,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:32:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:32:20,758 INFO L87 Difference]: Start difference. First operand 7817 states and 10622 transitions. Second operand has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 8 states have internal predecessors, (161), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 13:32:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:24,264 INFO L93 Difference]: Finished difference Result 10693 states and 14626 transitions. [2021-11-19 13:32:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:32:24,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 8 states have internal predecessors, (161), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 388 [2021-11-19 13:32:24,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:24,294 INFO L225 Difference]: With dead ends: 10693 [2021-11-19 13:32:24,294 INFO L226 Difference]: Without dead ends: 8454 [2021-11-19 13:32:24,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:32:24,302 INFO L933 BasicCegarLoop]: 4487 mSDtfsCounter, 1553 mSDsluCounter, 31677 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 36164 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:24,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1670 Valid, 36164 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 13:32:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8454 states. [2021-11-19 13:32:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8454 to 7821. [2021-11-19 13:32:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7821 states, 5389 states have (on average 1.2755613286323992) internal successors, (6874), 5553 states have internal predecessors, (6874), 1855 states have call successors, (1855), 580 states have call predecessors, (1855), 573 states have return successors, (1897), 1809 states have call predecessors, (1897), 1855 states have call successors, (1897) [2021-11-19 13:32:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7821 states to 7821 states and 10626 transitions. [2021-11-19 13:32:25,305 INFO L78 Accepts]: Start accepts. Automaton has 7821 states and 10626 transitions. Word has length 388 [2021-11-19 13:32:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:25,305 INFO L470 AbstractCegarLoop]: Abstraction has 7821 states and 10626 transitions. [2021-11-19 13:32:25,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.88888888888889) internal successors, (161), 8 states have internal predecessors, (161), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 13:32:25,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7821 states and 10626 transitions. [2021-11-19 13:32:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-19 13:32:25,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:25,310 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:25,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:25,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:32:25,511 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:32:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1359620462, now seen corresponding path program 1 times [2021-11-19 13:32:25,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:25,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186249837] [2021-11-19 13:32:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:25,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:25,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:25,515 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:25,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 13:32:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:30,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 3869 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 13:32:30,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 334 proven. 3 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-11-19 13:32:32,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 27 proven. 63 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2021-11-19 13:32:34,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:34,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186249837] [2021-11-19 13:32:34,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186249837] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:34,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071682284] [2021-11-19 13:32:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:34,759 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:32:34,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:32:34,760 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:32:34,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-19 13:32:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 3869 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 13:32:37,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-19 13:32:38,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-19 13:32:41,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2071682284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:32:41,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:32:41,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19, 19] total 34 [2021-11-19 13:32:41,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660010669] [2021-11-19 13:32:41,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:32:41,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:32:41,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:32:41,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:32:41,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1047, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 13:32:41,780 INFO L87 Difference]: Start difference. First operand 7821 states and 10626 transitions. Second operand has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (58), 7 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-19 13:32:43,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:43,202 INFO L93 Difference]: Finished difference Result 15375 states and 20885 transitions. [2021-11-19 13:32:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:32:43,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (58), 7 states have call predecessors, (58), 3 states have call successors, (58) Word has length 409 [2021-11-19 13:32:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:43,223 INFO L225 Difference]: With dead ends: 15375 [2021-11-19 13:32:43,223 INFO L226 Difference]: Without dead ends: 7865 [2021-11-19 13:32:43,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1633 GetRequests, 1600 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 13:32:43,237 INFO L933 BasicCegarLoop]: 4312 mSDtfsCounter, 9 mSDsluCounter, 34482 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 38794 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:43,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 38794 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:32:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2021-11-19 13:32:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7839. [2021-11-19 13:32:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7839 states, 5401 states have (on average 1.274949083503055) internal successors, (6886), 5565 states have internal predecessors, (6886), 1857 states have call successors, (1857), 580 states have call predecessors, (1857), 577 states have return successors, (1921), 1815 states have call predecessors, (1921), 1857 states have call successors, (1921) [2021-11-19 13:32:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7839 states to 7839 states and 10664 transitions. [2021-11-19 13:32:44,240 INFO L78 Accepts]: Start accepts. Automaton has 7839 states and 10664 transitions. Word has length 409 [2021-11-19 13:32:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:44,241 INFO L470 AbstractCegarLoop]: Abstraction has 7839 states and 10664 transitions. [2021-11-19 13:32:44,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (59), 2 states have call predecessors, (59), 5 states have return successors, (58), 7 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-19 13:32:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 7839 states and 10664 transitions. [2021-11-19 13:32:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-19 13:32:44,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:44,248 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:44,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:44,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:44,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:32:44,669 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:32:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1215904824, now seen corresponding path program 1 times [2021-11-19 13:32:44,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:32:44,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409005641] [2021-11-19 13:32:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:44,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:32:44,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:32:44,674 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:32:44,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-11-19 13:32:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:49,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 13:32:49,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 390 proven. 3 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-19 13:32:51,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 27 proven. 75 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2021-11-19 13:32:53,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:53,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409005641] [2021-11-19 13:32:53,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409005641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:53,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2095739454] [2021-11-19 13:32:53,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:53,768 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:32:53,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:32:53,769 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:32:53,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2021-11-19 13:33:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:17,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 13:33:17,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 381 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2021-11-19 13:33:19,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2021-11-19 13:33:20,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2095739454] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:33:20,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:33:20,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [19, 19, 15] total 22 [2021-11-19 13:33:20,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661911007] [2021-11-19 13:33:20,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:20,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 13:33:20,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:20,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 13:33:20,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:33:20,450 INFO L87 Difference]: Start difference. First operand 7839 states and 10664 transitions. Second operand has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) [2021-11-19 13:33:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:25,054 INFO L93 Difference]: Finished difference Result 10036 states and 13626 transitions. [2021-11-19 13:33:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:33:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) Word has length 425 [2021-11-19 13:33:25,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:25,073 INFO L225 Difference]: With dead ends: 10036 [2021-11-19 13:33:25,073 INFO L226 Difference]: Without dead ends: 7832 [2021-11-19 13:33:25,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1676 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:33:25,080 INFO L933 BasicCegarLoop]: 4258 mSDtfsCounter, 36 mSDsluCounter, 55269 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 59527 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:25,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 59527 Invalid, 726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:33:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7832 states. [2021-11-19 13:33:26,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7832 to 7832. [2021-11-19 13:33:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7832 states, 5396 states have (on average 1.274833209785026) internal successors, (6879), 5559 states have internal predecessors, (6879), 1855 states have call successors, (1855), 580 states have call predecessors, (1855), 577 states have return successors, (1919), 1813 states have call predecessors, (1919), 1855 states have call successors, (1919) [2021-11-19 13:33:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 10653 transitions. [2021-11-19 13:33:26,063 INFO L78 Accepts]: Start accepts. Automaton has 7832 states and 10653 transitions. Word has length 425 [2021-11-19 13:33:26,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:26,064 INFO L470 AbstractCegarLoop]: Abstraction has 7832 states and 10653 transitions. [2021-11-19 13:33:26,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (61), 2 states have call predecessors, (61), 4 states have return successors, (58), 7 states have call predecessors, (58), 7 states have call successors, (58) [2021-11-19 13:33:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7832 states and 10653 transitions. [2021-11-19 13:33:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-11-19 13:33:26,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:26,068 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:26,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:26,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2021-11-19 13:33:26,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:33:26,469 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:33:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:26,470 INFO L85 PathProgramCache]: Analyzing trace with hash -777554675, now seen corresponding path program 1 times [2021-11-19 13:33:26,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:26,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506351086] [2021-11-19 13:33:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:26,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:26,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:26,474 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:26,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2021-11-19 13:33:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:33,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:33:33,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2021-11-19 13:33:34,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-11-19 13:33:35,882 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:35,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506351086] [2021-11-19 13:33:35,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506351086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:35,882 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:35,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 13:33:35,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483049339] [2021-11-19 13:33:35,883 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:35,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:33:35,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:35,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:33:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:33:35,884 INFO L87 Difference]: Start difference. First operand 7832 states and 10653 transitions. Second operand has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-19 13:33:37,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:33:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:38,663 INFO L93 Difference]: Finished difference Result 15654 states and 21310 transitions. [2021-11-19 13:33:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:33:38,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) Word has length 390 [2021-11-19 13:33:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:38,689 INFO L225 Difference]: With dead ends: 15654 [2021-11-19 13:33:38,690 INFO L226 Difference]: Without dead ends: 7858 [2021-11-19 13:33:38,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:33:38,707 INFO L933 BasicCegarLoop]: 4298 mSDtfsCounter, 14 mSDsluCounter, 25774 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30072 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:38,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 30072 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 13:33:38,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7858 states. [2021-11-19 13:33:39,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7858 to 7838. [2021-11-19 13:33:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7838 states, 5402 states have (on average 1.2745279526101443) internal successors, (6885), 5563 states have internal predecessors, (6885), 1855 states have call successors, (1855), 580 states have call predecessors, (1855), 577 states have return successors, (1919), 1815 states have call predecessors, (1919), 1855 states have call successors, (1919) [2021-11-19 13:33:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7838 states to 7838 states and 10659 transitions. [2021-11-19 13:33:39,694 INFO L78 Accepts]: Start accepts. Automaton has 7838 states and 10659 transitions. Word has length 390 [2021-11-19 13:33:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:39,694 INFO L470 AbstractCegarLoop]: Abstraction has 7838 states and 10659 transitions. [2021-11-19 13:33:39,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.5) internal successors, (205), 8 states have internal predecessors, (205), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (67), 4 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-19 13:33:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7838 states and 10659 transitions. [2021-11-19 13:33:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-11-19 13:33:39,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:39,699 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:33:39,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2021-11-19 13:33:39,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:39,901 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:33:39,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1414843620, now seen corresponding path program 1 times [2021-11-19 13:33:39,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:39,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727359641] [2021-11-19 13:33:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:39,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:39,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:39,905 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:39,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-19 13:33:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 3818 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:33:45,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-19 13:33:46,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-19 13:33:50,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:50,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727359641] [2021-11-19 13:33:50,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727359641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:50,145 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:50,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-19 13:33:50,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126545731] [2021-11-19 13:33:50,145 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:50,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 13:33:50,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 13:33:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:33:50,147 INFO L87 Difference]: Start difference. First operand 7838 states and 10659 transitions. Second operand has 27 states, 25 states have (on average 8.0) internal successors, (200), 21 states have internal predecessors, (200), 8 states have call successors, (63), 2 states have call predecessors, (63), 9 states have return successors, (61), 12 states have call predecessors, (61), 8 states have call successors, (61) [2021-11-19 13:34:00,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:00,946 INFO L93 Difference]: Finished difference Result 16516 states and 22631 transitions. [2021-11-19 13:34:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 13:34:00,947 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 8.0) internal successors, (200), 21 states have internal predecessors, (200), 8 states have call successors, (63), 2 states have call predecessors, (63), 9 states have return successors, (61), 12 states have call predecessors, (61), 8 states have call successors, (61) Word has length 365 [2021-11-19 13:34:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:00,970 INFO L225 Difference]: With dead ends: 16516 [2021-11-19 13:34:00,971 INFO L226 Difference]: Without dead ends: 8998 [2021-11-19 13:34:00,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=167, Invalid=1639, Unknown=0, NotChecked=0, Total=1806 [2021-11-19 13:34:00,986 INFO L933 BasicCegarLoop]: 5062 mSDtfsCounter, 1587 mSDsluCounter, 75487 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 80549 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:00,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1727 Valid, 80549 Invalid, 2495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [817 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 13:34:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8998 states. [2021-11-19 13:34:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8998 to 7848. [2021-11-19 13:34:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 5409 states have (on average 1.2741726751710112) internal successors, (6892), 5569 states have internal predecessors, (6892), 1857 states have call successors, (1857), 580 states have call predecessors, (1857), 578 states have return successors, (1924), 1818 states have call predecessors, (1924), 1857 states have call successors, (1924) [2021-11-19 13:34:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 10673 transitions. [2021-11-19 13:34:02,037 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 10673 transitions. Word has length 365 [2021-11-19 13:34:02,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:34:02,037 INFO L470 AbstractCegarLoop]: Abstraction has 7848 states and 10673 transitions. [2021-11-19 13:34:02,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 8.0) internal successors, (200), 21 states have internal predecessors, (200), 8 states have call successors, (63), 2 states have call predecessors, (63), 9 states have return successors, (61), 12 states have call predecessors, (61), 8 states have call successors, (61) [2021-11-19 13:34:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 10673 transitions. [2021-11-19 13:34:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-19 13:34:02,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:34:02,041 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:34:02,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-19 13:34:02,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:34:02,242 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 13:34:02,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:34:02,243 INFO L85 PathProgramCache]: Analyzing trace with hash -916493720, now seen corresponding path program 1 times [2021-11-19 13:34:02,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:34:02,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692552622] [2021-11-19 13:34:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:34:02,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:34:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:34:02,247 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:34:02,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065e9bbf-0b9d-4d1a-8b8a-ddaf417e443f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process