./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--hid--usbhid--usbhid.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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:46,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:46,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:46,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:46,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:46,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:46,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:46,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:46,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:46,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:46,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:46,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:46,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:46,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:46,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:46,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:46,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:46,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:46,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:46,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:46,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:46,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:46,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:46,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:46,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:46,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:46,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:46,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:46,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:46,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:46,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:46,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:46,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:46,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:46,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:46,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:46,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:46,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:46,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:46,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:46,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:46,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:00:46,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:46,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:46,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:46,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:46,629 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:46,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:46,630 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:46,630 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:00:46,630 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:46,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:46,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:00:46,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:00:46,631 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:46,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:00:46,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:00:46,631 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:00:46,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:46,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:00:46,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:46,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:46,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:46,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:46,633 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:46,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:46,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:46,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:46,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:46,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:46,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:46,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:46,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:46,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:46,635 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:00:46,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:00:46,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:46,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:46,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:46,636 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a [2021-11-19 14:00:46,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:46,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:46,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:46,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:46,969 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:46,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2021-11-19 14:00:47,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/d29adec0e/78aab095f9794ea288bd084def04ceed/FLAGa81263638 [2021-11-19 14:00:48,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:48,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2021-11-19 14:00:48,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/d29adec0e/78aab095f9794ea288bd084def04ceed/FLAGa81263638 [2021-11-19 14:00:48,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/d29adec0e/78aab095f9794ea288bd084def04ceed [2021-11-19 14:00:48,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:48,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:48,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:48,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:48,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:48,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:48" (1/1) ... [2021-11-19 14:00:48,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff2365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:48, skipping insertion in model container [2021-11-19 14:00:48,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:48" (1/1) ... [2021-11-19 14:00:48,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:48,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:50,963 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:50,976 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,000 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,020 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,034 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,049 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,050 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,054 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,061 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,068 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 14:00:51,089 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,090 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,102 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 14:00:51,103 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,105 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,116 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,137 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,145 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,166 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,171 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,174 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,222 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,224 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,257 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,280 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,324 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,348 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,425 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 14:00:51,455 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,548 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,561 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,566 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,582 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,582 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,590 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,591 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,597 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,598 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,607 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,645 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,648 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 14:00:51,680 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 14:00:51,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,694 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:51,695 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,040 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,040 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,041 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 14:00:52,041 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 14:00:52,042 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,052 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,052 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,057 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,058 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 14:00:52,063 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,063 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,064 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,064 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,066 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,163 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,445 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,587 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,664 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 14:00:52,676 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,683 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,692 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,693 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,710 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,727 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,740 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,773 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,781 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,840 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,842 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,844 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,845 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,918 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 14:00:52,918 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 14:00:52,920 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,922 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,924 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:52,924 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,191 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,207 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,219 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,242 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,259 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 14:00:53,400 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,795 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:53,802 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:54,497 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:54,497 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:55,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2021-11-19 14:00:55,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2021-11-19 14:00:55,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2021-11-19 14:00:55,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2021-11-19 14:00:55,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2021-11-19 14:00:55,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2021-11-19 14:00:55,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2021-11-19 14:00:55,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2021-11-19 14:00:55,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2021-11-19 14:00:55,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2021-11-19 14:00:55,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2021-11-19 14:00:55,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2021-11-19 14:00:55,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2021-11-19 14:00:55,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2021-11-19 14:00:55,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2021-11-19 14:00:55,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2021-11-19 14:00:55,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2021-11-19 14:00:55,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2021-11-19 14:00:55,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2021-11-19 14:00:55,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2021-11-19 14:00:55,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2021-11-19 14:00:55,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2021-11-19 14:00:55,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2021-11-19 14:00:55,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2021-11-19 14:00:55,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2021-11-19 14:00:55,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2021-11-19 14:00:55,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2021-11-19 14:00:55,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2021-11-19 14:00:55,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2021-11-19 14:00:55,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2021-11-19 14:00:55,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2021-11-19 14:00:55,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2021-11-19 14:00:55,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2021-11-19 14:00:55,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2021-11-19 14:00:55,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2021-11-19 14:00:55,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2021-11-19 14:00:55,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2021-11-19 14:00:55,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2021-11-19 14:00:55,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2021-11-19 14:00:55,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2021-11-19 14:00:55,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2021-11-19 14:00:55,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2021-11-19 14:00:55,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2021-11-19 14:00:55,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2021-11-19 14:00:55,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2021-11-19 14:00:55,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2021-11-19 14:00:55,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2021-11-19 14:00:55,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2021-11-19 14:00:55,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2021-11-19 14:00:55,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2021-11-19 14:00:55,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2021-11-19 14:00:55,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2021-11-19 14:00:55,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2021-11-19 14:00:55,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2021-11-19 14:00:55,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2021-11-19 14:00:55,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2021-11-19 14:00:55,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2021-11-19 14:00:55,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2021-11-19 14:00:55,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2021-11-19 14:00:55,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2021-11-19 14:00:55,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2021-11-19 14:00:55,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2021-11-19 14:00:55,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2021-11-19 14:00:55,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2021-11-19 14:00:55,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2021-11-19 14:00:55,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2021-11-19 14:00:55,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2021-11-19 14:00:55,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2021-11-19 14:00:55,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2021-11-19 14:00:55,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2021-11-19 14:00:55,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2021-11-19 14:00:55,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2021-11-19 14:00:55,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2021-11-19 14:00:55,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2021-11-19 14:00:55,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2021-11-19 14:00:55,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2021-11-19 14:00:55,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2021-11-19 14:00:55,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2021-11-19 14:00:55,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2021-11-19 14:00:55,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2021-11-19 14:00:55,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2021-11-19 14:00:55,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2021-11-19 14:00:55,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2021-11-19 14:00:55,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2021-11-19 14:00:55,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2021-11-19 14:00:55,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2021-11-19 14:00:55,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2021-11-19 14:00:55,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2021-11-19 14:00:55,517 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:55,554 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:00:55,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a0c7b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:55, skipping insertion in model container [2021-11-19 14:00:55,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:55,555 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:00:55,558 INFO L158 Benchmark]: Toolchain (without parser) took 7098.32ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 70.4MB in the beginning and 52.2MB in the end (delta: 18.2MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2021-11-19 14:00:55,558 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:55,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7092.40ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 69.9MB in the beginning and 52.2MB in the end (delta: 17.6MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2021-11-19 14:00:55,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7092.40ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 69.9MB in the beginning and 52.2MB in the end (delta: 17.6MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5366]: 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:58,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:58,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:58,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:58,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:58,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:58,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:58,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:58,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:58,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:58,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:58,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:58,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:58,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:58,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:58,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:58,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:58,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:58,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:58,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:58,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:58,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:58,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:58,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:58,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:58,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:58,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:58,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:58,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:58,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:58,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:58,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:58,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:58,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:58,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:58,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:58,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:58,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:58,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:58,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:58,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:58,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:00:58,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:58,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:58,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:58,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:58,300 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:58,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:58,300 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:58,301 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:58,301 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:58,301 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:58,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:58,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:58,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:58,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:58,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:58,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:58,305 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:00:58,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:00:58,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:58,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:58,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:58,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:58,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:00:58,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:58,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:58,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:58,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:58,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:58,308 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:00:58,308 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:58,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:58,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:58,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:58,309 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a [2021-11-19 14:00:58,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:58,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:58,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:58,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:58,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:58,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2021-11-19 14:00:58,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/cc4c24dbf/c856b8b014094aa8986861a445d1d585/FLAGdc5d64078 [2021-11-19 14:00:59,966 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:59,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2021-11-19 14:01:00,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/cc4c24dbf/c856b8b014094aa8986861a445d1d585/FLAGdc5d64078 [2021-11-19 14:01:00,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/data/cc4c24dbf/c856b8b014094aa8986861a445d1d585 [2021-11-19 14:01:00,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:01:00,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:01:00,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:00,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:01:00,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:01:00,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f52b93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:00, skipping insertion in model container [2021-11-19 14:01:00,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:00" (1/1) ... [2021-11-19 14:01:00,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:01:00,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:01:06,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2021-11-19 14:01:06,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2021-11-19 14:01:06,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2021-11-19 14:01:06,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2021-11-19 14:01:06,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2021-11-19 14:01:06,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2021-11-19 14:01:06,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2021-11-19 14:01:06,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2021-11-19 14:01:06,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2021-11-19 14:01:06,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2021-11-19 14:01:06,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2021-11-19 14:01:06,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2021-11-19 14:01:06,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2021-11-19 14:01:06,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2021-11-19 14:01:06,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2021-11-19 14:01:06,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2021-11-19 14:01:06,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2021-11-19 14:01:06,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2021-11-19 14:01:06,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2021-11-19 14:01:06,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2021-11-19 14:01:06,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2021-11-19 14:01:06,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2021-11-19 14:01:06,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2021-11-19 14:01:06,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2021-11-19 14:01:06,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2021-11-19 14:01:06,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2021-11-19 14:01:06,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2021-11-19 14:01:06,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2021-11-19 14:01:06,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2021-11-19 14:01:06,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2021-11-19 14:01:06,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2021-11-19 14:01:06,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2021-11-19 14:01:06,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2021-11-19 14:01:06,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2021-11-19 14:01:06,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2021-11-19 14:01:06,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2021-11-19 14:01:06,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2021-11-19 14:01:06,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2021-11-19 14:01:06,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2021-11-19 14:01:06,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2021-11-19 14:01:06,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2021-11-19 14:01:06,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2021-11-19 14:01:06,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2021-11-19 14:01:06,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2021-11-19 14:01:06,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2021-11-19 14:01:06,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2021-11-19 14:01:06,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2021-11-19 14:01:06,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2021-11-19 14:01:06,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2021-11-19 14:01:06,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2021-11-19 14:01:06,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2021-11-19 14:01:06,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2021-11-19 14:01:06,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2021-11-19 14:01:06,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2021-11-19 14:01:06,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2021-11-19 14:01:06,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2021-11-19 14:01:06,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2021-11-19 14:01:06,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2021-11-19 14:01:06,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2021-11-19 14:01:06,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2021-11-19 14:01:06,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2021-11-19 14:01:06,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2021-11-19 14:01:06,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2021-11-19 14:01:06,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2021-11-19 14:01:06,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2021-11-19 14:01:06,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2021-11-19 14:01:06,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2021-11-19 14:01:06,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2021-11-19 14:01:06,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2021-11-19 14:01:06,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2021-11-19 14:01:06,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2021-11-19 14:01:06,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2021-11-19 14:01:06,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2021-11-19 14:01:06,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2021-11-19 14:01:06,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2021-11-19 14:01:06,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2021-11-19 14:01:06,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2021-11-19 14:01:06,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2021-11-19 14:01:06,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2021-11-19 14:01:06,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2021-11-19 14:01:06,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2021-11-19 14:01:06,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2021-11-19 14:01:06,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2021-11-19 14:01:06,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2021-11-19 14:01:06,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2021-11-19 14:01:06,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2021-11-19 14:01:06,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2021-11-19 14:01:06,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2021-11-19 14:01:06,377 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:06,458 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:01:06,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:01:07,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2021-11-19 14:01:07,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2021-11-19 14:01:07,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2021-11-19 14:01:07,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2021-11-19 14:01:07,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2021-11-19 14:01:07,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2021-11-19 14:01:07,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2021-11-19 14:01:07,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2021-11-19 14:01:07,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2021-11-19 14:01:07,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2021-11-19 14:01:07,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2021-11-19 14:01:07,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2021-11-19 14:01:07,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2021-11-19 14:01:07,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2021-11-19 14:01:07,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2021-11-19 14:01:07,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2021-11-19 14:01:07,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2021-11-19 14:01:07,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2021-11-19 14:01:07,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2021-11-19 14:01:07,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2021-11-19 14:01:07,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2021-11-19 14:01:07,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2021-11-19 14:01:07,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2021-11-19 14:01:07,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2021-11-19 14:01:07,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2021-11-19 14:01:07,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2021-11-19 14:01:07,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2021-11-19 14:01:07,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2021-11-19 14:01:07,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2021-11-19 14:01:07,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2021-11-19 14:01:07,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2021-11-19 14:01:07,182 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2021-11-19 14:01:07,182 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2021-11-19 14:01:07,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2021-11-19 14:01:07,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2021-11-19 14:01:07,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2021-11-19 14:01:07,185 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2021-11-19 14:01:07,186 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2021-11-19 14:01:07,186 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2021-11-19 14:01:07,187 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2021-11-19 14:01:07,188 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2021-11-19 14:01:07,188 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2021-11-19 14:01:07,188 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2021-11-19 14:01:07,190 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2021-11-19 14:01:07,192 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2021-11-19 14:01:07,193 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2021-11-19 14:01:07,193 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2021-11-19 14:01:07,193 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2021-11-19 14:01:07,194 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2021-11-19 14:01:07,194 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2021-11-19 14:01:07,194 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2021-11-19 14:01:07,195 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2021-11-19 14:01:07,195 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2021-11-19 14:01:07,196 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2021-11-19 14:01:07,196 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2021-11-19 14:01:07,197 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2021-11-19 14:01:07,197 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2021-11-19 14:01:07,198 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2021-11-19 14:01:07,199 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2021-11-19 14:01:07,199 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2021-11-19 14:01:07,205 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2021-11-19 14:01:07,205 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2021-11-19 14:01:07,206 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2021-11-19 14:01:07,206 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2021-11-19 14:01:07,206 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2021-11-19 14:01:07,207 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2021-11-19 14:01:07,208 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2021-11-19 14:01:07,208 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2021-11-19 14:01:07,208 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2021-11-19 14:01:07,214 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2021-11-19 14:01:07,214 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2021-11-19 14:01:07,215 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2021-11-19 14:01:07,215 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2021-11-19 14:01:07,216 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2021-11-19 14:01:07,216 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2021-11-19 14:01:07,216 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2021-11-19 14:01:07,217 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2021-11-19 14:01:07,217 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2021-11-19 14:01:07,218 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2021-11-19 14:01:07,219 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2021-11-19 14:01:07,219 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2021-11-19 14:01:07,220 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2021-11-19 14:01:07,221 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2021-11-19 14:01:07,221 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2021-11-19 14:01:07,221 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2021-11-19 14:01:07,222 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2021-11-19 14:01:07,222 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2021-11-19 14:01:07,222 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2021-11-19 14:01:07,232 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:07,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:01:08,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2021-11-19 14:01:08,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2021-11-19 14:01:08,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2021-11-19 14:01:08,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2021-11-19 14:01:08,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2021-11-19 14:01:08,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2021-11-19 14:01:08,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2021-11-19 14:01:08,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2021-11-19 14:01:08,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2021-11-19 14:01:08,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2021-11-19 14:01:08,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2021-11-19 14:01:08,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2021-11-19 14:01:08,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2021-11-19 14:01:08,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2021-11-19 14:01:08,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2021-11-19 14:01:08,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2021-11-19 14:01:08,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2021-11-19 14:01:08,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2021-11-19 14:01:08,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2021-11-19 14:01:08,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2021-11-19 14:01:08,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2021-11-19 14:01:08,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2021-11-19 14:01:08,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2021-11-19 14:01:08,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2021-11-19 14:01:08,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2021-11-19 14:01:08,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2021-11-19 14:01:08,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2021-11-19 14:01:08,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2021-11-19 14:01:08,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2021-11-19 14:01:08,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2021-11-19 14:01:08,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2021-11-19 14:01:08,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2021-11-19 14:01:08,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2021-11-19 14:01:08,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2021-11-19 14:01:08,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2021-11-19 14:01:08,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2021-11-19 14:01:08,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2021-11-19 14:01:08,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2021-11-19 14:01:08,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2021-11-19 14:01:08,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2021-11-19 14:01:08,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2021-11-19 14:01:08,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2021-11-19 14:01:08,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2021-11-19 14:01:08,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2021-11-19 14:01:08,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2021-11-19 14:01:08,091 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2021-11-19 14:01:08,091 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2021-11-19 14:01:08,091 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2021-11-19 14:01:08,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2021-11-19 14:01:08,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2021-11-19 14:01:08,094 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2021-11-19 14:01:08,094 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2021-11-19 14:01:08,094 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2021-11-19 14:01:08,095 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2021-11-19 14:01:08,095 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2021-11-19 14:01:08,095 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2021-11-19 14:01:08,096 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2021-11-19 14:01:08,096 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2021-11-19 14:01:08,096 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2021-11-19 14:01:08,097 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2021-11-19 14:01:08,097 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2021-11-19 14:01:08,098 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2021-11-19 14:01:08,098 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2021-11-19 14:01:08,098 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2021-11-19 14:01:08,099 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2021-11-19 14:01:08,099 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2021-11-19 14:01:08,099 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2021-11-19 14:01:08,100 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2021-11-19 14:01:08,100 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2021-11-19 14:01:08,100 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2021-11-19 14:01:08,102 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2021-11-19 14:01:08,104 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2021-11-19 14:01:08,104 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2021-11-19 14:01:08,105 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2021-11-19 14:01:08,105 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2021-11-19 14:01:08,106 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2021-11-19 14:01:08,106 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2021-11-19 14:01:08,107 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2021-11-19 14:01:08,107 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2021-11-19 14:01:08,112 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_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2021-11-19 14:01:08,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2021-11-19 14:01:08,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2021-11-19 14:01:08,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2021-11-19 14:01:08,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2021-11-19 14:01:08,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2021-11-19 14:01:08,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2021-11-19 14:01:08,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2021-11-19 14:01:08,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2021-11-19 14:01:08,126 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:01:08,484 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:01:08,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08 WrapperNode [2021-11-19 14:01:08,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:01:08,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:08,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:01:08,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:01:08,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:08,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,008 INFO L137 Inliner]: procedures = 806, calls = 4667, calls flagged for inlining = 346, calls inlined = 247, statements flattened = 7845 [2021-11-19 14:01:09,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:01:09,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:01:09,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:01:09,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:01:09,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:01:09,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:01:09,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:01:09,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:01:09,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (1/1) ... [2021-11-19 14:01:09,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:01:09,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:01:09,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:01:09,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:01:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-19 14:01:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2021-11-19 14:01:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2021-11-19 14:01:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-11-19 14:01:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-11-19 14:01:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_field [2021-11-19 14:01:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_field [2021-11-19 14:01:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2021-11-19 14:01:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2021-11-19 14:01:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_usage [2021-11-19 14:01:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_usage [2021-11-19 14:01:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:01:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:01:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-19 14:01:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-19 14:01:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:01:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:01:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-19 14:01:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-19 14:01:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 14:01:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 14:01:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2021-11-19 14:01:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2021-11-19 14:01:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_erase_pid [2021-11-19 14:01:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_erase_pid [2021-11-19 14:01:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:01:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:01:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:01:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_out [2021-11-19 14:01:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_out [2021-11-19 14:01:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2021-11-19 14:01:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2021-11-19 14:01:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure hid_output_report [2021-11-19 14:01:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_output_report [2021-11-19 14:01:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:01:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:01:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:01:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:01:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2021-11-19 14:01:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2021-11-19 14:01:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure hid_find_max_report [2021-11-19 14:01:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_find_max_report [2021-11-19 14:01:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_autocenter [2021-11-19 14:01:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_autocenter [2021-11-19 14:01:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:01:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:01:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_ioctl [2021-11-19 14:01:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_ioctl [2021-11-19 14:01:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:01:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:01:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:01:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:01:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_ctrl [2021-11-19 14:01:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_ctrl [2021-11-19 14:01:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_120 [2021-11-19 14:01:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_120 [2021-11-19 14:01:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:01:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:01:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_out_queue [2021-11-19 14:01:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_out_queue [2021-11-19 14:01:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-19 14:01:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-19 14:01:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:01:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:01:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_stop [2021-11-19 14:01:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_stop [2021-11-19 14:01:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:01:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 14:01:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 14:01:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:01:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:01:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:01:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:01:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:01:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cease_io [2021-11-19 14:01:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cease_io [2021-11-19 14:01:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-19 14:01:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-19 14:01:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 14:01:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 14:01:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-19 14:01:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-19 14:01:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 14:01:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-19 14:01:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2021-11-19 14:01:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2021-11-19 14:01:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:01:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:01:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure hid_start_in [2021-11-19 14:01:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_start_in [2021-11-19 14:01:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:01:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:01:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2021-11-19 14:01:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2021-11-19 14:01:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure hid_io_error [2021-11-19 14:01:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_io_error [2021-11-19 14:01:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:01:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:01:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:01:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:01:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:01:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:01:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:01:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:01:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:01:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-19 14:01:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-19 14:01:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cancel_delayed_stuff [2021-11-19 14:01:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cancel_delayed_stuff [2021-11-19 14:01:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:01:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:01:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2021-11-19 14:01:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2021-11-19 14:01:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_lookup_report [2021-11-19 14:01:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_lookup_report [2021-11-19 14:01:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:01:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:01:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 14:01:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-19 14:01:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:01:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:01:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:01:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:01:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:01:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_submit_report [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_submit_report [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_mark_busy [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_mark_busy [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure hid_set_idle [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_set_idle [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_set [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_set [2021-11-19 14:01:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2021-11-19 14:01:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure hid_alloc_report_buf [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_alloc_report_buf [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_reports [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_reports [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:01:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:01:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:01:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:01:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:01:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 14:01:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:01:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_ctrl_queue [2021-11-19 14:01:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_ctrl_queue [2021-11-19 14:01:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2021-11-19 14:01:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_lookup_quirk [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_lookup_quirk [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2021-11-19 14:01:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure hid_get_class_descriptor [2021-11-19 14:01:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_get_class_descriptor [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_96 [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_96 [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:01:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:01:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_playback_pid [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_playback_pid [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_block_urb [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_block_urb [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure hid_retry_timeout [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_retry_timeout [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-19 14:01:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-19 14:01:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2021-11-19 14:01:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2021-11-19 14:01:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_init_reports [2021-11-19 14:01:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_init_reports [2021-11-19 14:01:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2021-11-19 14:01:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2021-11-19 14:01:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:01:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:01:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:01:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:01:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:01:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:01:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-11-19 14:01:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-11-19 14:01:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:01:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:01:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:01:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:01:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:01:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:01:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2021-11-19 14:01:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2021-11-19 14:01:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:01:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:01:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:01:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:01:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:01:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 14:01:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 14:01:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 14:01:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 14:01:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure hid_free_buffers [2021-11-19 14:01:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_free_buffers [2021-11-19 14:01:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 14:01:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 14:01:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2021-11-19 14:01:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2021-11-19 14:01:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:01:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:01:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 14:01:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 14:01:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-19 14:01:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-19 14:01:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:01:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:01:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2021-11-19 14:01:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2021-11-19 14:01:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:01:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:01:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:01:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:01:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:01:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-19 14:01:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-19 14:01:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:01:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:01:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-19 14:01:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-19 14:01:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 14:01:09,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 14:01:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 14:01:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 14:01:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:01:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:01:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_parse [2021-11-19 14:01:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_parse [2021-11-19 14:01:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-11-19 14:01:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-11-19 14:01:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_wait_io [2021-11-19 14:01:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_wait_io [2021-11-19 14:01:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_put_power [2021-11-19 14:01:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_put_power [2021-11-19 14:01:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2021-11-19 14:01:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2021-11-19 14:01:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:01:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:01:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:01:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_99 [2021-11-19 14:01:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_99 [2021-11-19 14:01:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_keys [2021-11-19 14:01:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_keys [2021-11-19 14:01:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:01:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:01:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-19 14:01:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-19 14:01:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:01:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:01:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:01:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-19 14:01:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-19 14:01:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_request [2021-11-19 14:01:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_request [2021-11-19 14:01:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:01:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-19 14:01:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-19 14:01:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:01:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:01:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:01:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:01:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:01:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:01:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:01:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:01:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~C_INT [2021-11-19 14:01:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~C_INT [2021-11-19 14:01:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_no_suspend [2021-11-19 14:01:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_no_suspend [2021-11-19 14:01:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2021-11-19 14:01:09,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2021-11-19 14:01:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_disconnect [2021-11-19 14:01:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_disconnect [2021-11-19 14:01:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-11-19 14:01:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-11-19 14:01:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure hid_destroy_device [2021-11-19 14:01:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_destroy_device [2021-11-19 14:01:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-19 14:01:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-19 14:01:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_open [2021-11-19 14:01:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_open [2021-11-19 14:01:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-19 14:01:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-19 14:01:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:01:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_rescale [2021-11-19 14:01:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_rescale [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 14:01:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 14:01:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:01:09,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:01:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_close [2021-11-19 14:01:09,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_close [2021-11-19 14:01:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:01:09,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:01:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_7_2 [2021-11-19 14:01:09,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_7_2 [2021-11-19 14:01:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 14:01:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-19 14:01:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2021-11-19 14:01:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2021-11-19 14:01:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:01:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:01:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_fields [2021-11-19 14:01:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_fields [2021-11-19 14:01:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:01:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 14:01:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_quirks_exit [2021-11-19 14:01:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_quirks_exit [2021-11-19 14:01:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 14:01:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 14:01:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_queues [2021-11-19 14:01:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_queues [2021-11-19 14:01:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:01:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:01:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-19 14:01:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-19 14:01:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:01:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:01:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure hid_device_io_stop [2021-11-19 14:01:09,708 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_device_io_stop [2021-11-19 14:01:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:01:09,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:01:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_start [2021-11-19 14:01:09,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_start [2021-11-19 14:01:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:01:09,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:01:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-19 14:01:09,709 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-19 14:01:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-19 14:01:09,709 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-19 14:01:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2021-11-19 14:01:09,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2021-11-19 14:01:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:01:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:01:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-19 14:01:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-19 14:01:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pre_reset [2021-11-19 14:01:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pre_reset [2021-11-19 14:01:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:01:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2021-11-19 14:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2021-11-19 14:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-19 14:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-19 14:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure hid_post_reset [2021-11-19 14:01:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_post_reset [2021-11-19 14:01:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-11-19 14:01:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-11-19 14:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_get_power [2021-11-19 14:01:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_get_power [2021-11-19 14:01:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_119 [2021-11-19 14:01:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_119 [2021-11-19 14:01:10,911 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:01:10,915 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:01:12,518 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:02:24,117 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:02:24,147 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:02:24,147 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:02:24,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:24 BoogieIcfgContainer [2021-11-19 14:02:24,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:02:24,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:02:24,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:02:24,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:02:24,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:00" (1/3) ... [2021-11-19 14:02:24,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc95d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:24, skipping insertion in model container [2021-11-19 14:02:24,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:08" (2/3) ... [2021-11-19 14:02:24,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc95d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:24, skipping insertion in model container [2021-11-19 14:02:24,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:24" (3/3) ... [2021-11-19 14:02:24,163 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2021-11-19 14:02:24,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:02:24,168 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-19 14:02:24,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:02:24,241 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:02:24,241 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-19 14:02:24,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 2998 states, 2012 states have (on average 1.3195825049701788) internal successors, (2655), 2104 states have internal predecessors, (2655), 768 states have call successors, (768), 186 states have call predecessors, (768), 185 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) [2021-11-19 14:02:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 14:02:24,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:24,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:24,323 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_alloc_irq_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 31 more)] === [2021-11-19 14:02:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1598990810, now seen corresponding path program 1 times [2021-11-19 14:02:24,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:24,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556584968] [2021-11-19 14:02:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:24,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:24,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:24,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:24,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:02:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:27,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 2367 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:02:27,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:27,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:27,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:27,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556584968] [2021-11-19 14:02:27,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556584968] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:27,947 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:27,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-19 14:02:27,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86578859] [2021-11-19 14:02:27,949 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:27,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:02:27,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:02:27,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:02:27,991 INFO L87 Difference]: Start difference. First operand has 2998 states, 2012 states have (on average 1.3195825049701788) internal successors, (2655), 2104 states have internal predecessors, (2655), 768 states have call successors, (768), 186 states have call predecessors, (768), 185 states have return successors, (762), 755 states have call predecessors, (762), 762 states have call successors, (762) Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 14:02:30,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:02:32,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:02:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:45,763 INFO L93 Difference]: Finished difference Result 6180 states and 8838 transitions. [2021-11-19 14:02:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:02:45,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2021-11-19 14:02:45,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:45,825 INFO L225 Difference]: With dead ends: 6180 [2021-11-19 14:02:45,825 INFO L226 Difference]: Without dead ends: 3177 [2021-11-19 14:02:45,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 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 14:02:45,860 INFO L933 BasicCegarLoop]: 4173 mSDtfsCounter, 4082 mSDsluCounter, 13887 mSDsCounter, 0 mSdLazyCounter, 3072 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 18060 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3072 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:45,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4091 Valid, 18060 Invalid, 3079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 3072 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2021-11-19 14:02:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2021-11-19 14:02:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3150. [2021-11-19 14:02:46,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2107 states have (on average 1.2895111532985286) internal successors, (2717), 2198 states have internal predecessors, (2717), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2021-11-19 14:02:46,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4316 transitions. [2021-11-19 14:02:46,186 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4316 transitions. Word has length 30 [2021-11-19 14:02:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:46,187 INFO L470 AbstractCegarLoop]: Abstraction has 3150 states and 4316 transitions. [2021-11-19 14:02:46,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 14:02:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4316 transitions. [2021-11-19 14:02:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 14:02:46,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:46,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:46,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:46,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:46,410 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_alloc_irq_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 31 more)] === [2021-11-19 14:02:46,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1598931228, now seen corresponding path program 1 times [2021-11-19 14:02:46,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:46,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151532805] [2021-11-19 14:02:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:46,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:46,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:46,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:46,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:02:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:49,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 2367 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:02:49,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:49,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:49,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:49,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151532805] [2021-11-19 14:02:49,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151532805] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:49,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:49,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:02:49,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88477457] [2021-11-19 14:02:49,656 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:49,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:02:49,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:02:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:02:49,658 INFO L87 Difference]: Start difference. First operand 3150 states and 4316 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:02:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:49,918 INFO L93 Difference]: Finished difference Result 3157 states and 4323 transitions. [2021-11-19 14:02:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:02:49,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-19 14:02:49,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:49,951 INFO L225 Difference]: With dead ends: 3157 [2021-11-19 14:02:49,951 INFO L226 Difference]: Without dead ends: 3155 [2021-11-19 14:02:49,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 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 14:02:49,956 INFO L933 BasicCegarLoop]: 4098 mSDtfsCounter, 13 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 16386 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:49,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 16386 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2021-11-19 14:02:50,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3152. [2021-11-19 14:02:50,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 2109 states have (on average 1.2887624466571834) internal successors, (2718), 2200 states have internal predecessors, (2718), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2021-11-19 14:02:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 4317 transitions. [2021-11-19 14:02:50,194 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 4317 transitions. Word has length 30 [2021-11-19 14:02:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:50,194 INFO L470 AbstractCegarLoop]: Abstraction has 3152 states and 4317 transitions. [2021-11-19 14:02:50,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:02:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 4317 transitions. [2021-11-19 14:02:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 14:02:50,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:50,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:02:50,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:50,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:50,419 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_alloc_usb_lock_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 31 more)] === [2021-11-19 14:02:50,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1859529565, now seen corresponding path program 1 times [2021-11-19 14:02:50,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:50,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500207083] [2021-11-19 14:02:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:50,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:50,426 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:50,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:02:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:53,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:02:53,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:53,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:02:53,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:53,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500207083] [2021-11-19 14:02:53,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500207083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:53,916 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:53,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:02:53,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237111027] [2021-11-19 14:02:53,917 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:53,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:53,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:53,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:53,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:53,918 INFO L87 Difference]: Start difference. First operand 3152 states and 4317 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 14:02:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:54,179 INFO L93 Difference]: Finished difference Result 6293 states and 8719 transitions. [2021-11-19 14:02:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:02:54,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 37 [2021-11-19 14:02:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:54,213 INFO L225 Difference]: With dead ends: 6293 [2021-11-19 14:02:54,213 INFO L226 Difference]: Without dead ends: 3146 [2021-11-19 14:02:54,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:54,237 INFO L933 BasicCegarLoop]: 4093 mSDtfsCounter, 4073 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4093 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:54,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4073 Valid, 4093 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:02:54,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2021-11-19 14:02:54,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3146. [2021-11-19 14:02:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 2104 states have (on average 1.2875475285171103) internal successors, (2709), 2194 states have internal predecessors, (2709), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2021-11-19 14:02:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 4308 transitions. [2021-11-19 14:02:54,449 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 4308 transitions. Word has length 37 [2021-11-19 14:02:54,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:54,451 INFO L470 AbstractCegarLoop]: Abstraction has 3146 states and 4308 transitions. [2021-11-19 14:02:54,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 14:02:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 4308 transitions. [2021-11-19 14:02:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 14:02:54,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:54,464 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] [2021-11-19 14:02:54,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:54,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:54,687 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 31 more)] === [2021-11-19 14:02:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash -698040260, now seen corresponding path program 1 times [2021-11-19 14:02:54,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:54,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215802683] [2021-11-19 14:02:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:54,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:54,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:54,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:54,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:02:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:02:57,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:02:57,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:02:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 14:02:57,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:02:57,800 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 14:02:57,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:02:57,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215802683] [2021-11-19 14:02:57,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215802683] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:02:57,801 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:02:57,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:02:57,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639982464] [2021-11-19 14:02:57,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:02:57,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:02:57,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:02:57,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:02:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:02:57,803 INFO L87 Difference]: Start difference. First operand 3146 states and 4308 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-19 14:02:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:02:58,739 INFO L93 Difference]: Finished difference Result 6401 states and 8798 transitions. [2021-11-19 14:02:58,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:02:58,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 55 [2021-11-19 14:02:58,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:02:58,777 INFO L225 Difference]: With dead ends: 6401 [2021-11-19 14:02:58,778 INFO L226 Difference]: Without dead ends: 3580 [2021-11-19 14:02:58,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:02:58,794 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1347 mSDsluCounter, 7276 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 11563 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:02:58,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 11563 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:02:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-11-19 14:02:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3146. [2021-11-19 14:02:59,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 2104 states have (on average 1.2870722433460076) internal successors, (2708), 2193 states have internal predecessors, (2708), 799 states have call successors, (799), 214 states have call predecessors, (799), 211 states have return successors, (800), 786 states have call predecessors, (800), 797 states have call successors, (800) [2021-11-19 14:02:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 4307 transitions. [2021-11-19 14:02:59,039 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 4307 transitions. Word has length 55 [2021-11-19 14:02:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:02:59,041 INFO L470 AbstractCegarLoop]: Abstraction has 3146 states and 4307 transitions. [2021-11-19 14:02:59,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-19 14:02:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 4307 transitions. [2021-11-19 14:02:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 14:02:59,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:02:59,045 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:02:59,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:02:59,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:02:59,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 31 more)] === [2021-11-19 14:02:59,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:02:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1995982466, now seen corresponding path program 1 times [2021-11-19 14:02:59,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:02:59,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702574007] [2021-11-19 14:02:59,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:02:59,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:02:59,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:02:59,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:02:59,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:03:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:02,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:03:02,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:03:02,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:03,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:03,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702574007] [2021-11-19 14:03:03,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702574007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:03,164 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:03,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 14:03:03,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630467194] [2021-11-19 14:03:03,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:03,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:03:03,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:03,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:03:03,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:03:03,166 INFO L87 Difference]: Start difference. First operand 3146 states and 4307 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:03:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:05,630 INFO L93 Difference]: Finished difference Result 7007 states and 9703 transitions. [2021-11-19 14:03:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:03:05,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 77 [2021-11-19 14:03:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:05,665 INFO L225 Difference]: With dead ends: 7007 [2021-11-19 14:03:05,665 INFO L226 Difference]: Without dead ends: 4187 [2021-11-19 14:03:05,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:03:05,681 INFO L933 BasicCegarLoop]: 5266 mSDtfsCounter, 2998 mSDsluCounter, 43335 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1040 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3153 SdHoareTripleChecker+Valid, 48601 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1040 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:05,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3153 Valid, 48601 Invalid, 1254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1040 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:03:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2021-11-19 14:03:05,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3313. [2021-11-19 14:03:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2224 states have (on average 1.285071942446043) internal successors, (2858), 2317 states have internal predecessors, (2858), 846 states have call successors, (846), 214 states have call predecessors, (846), 211 states have return successors, (847), 833 states have call predecessors, (847), 844 states have call successors, (847) [2021-11-19 14:03:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4551 transitions. [2021-11-19 14:03:05,935 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4551 transitions. Word has length 77 [2021-11-19 14:03:05,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:05,936 INFO L470 AbstractCegarLoop]: Abstraction has 3313 states and 4551 transitions. [2021-11-19 14:03:05,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-19 14:03:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4551 transitions. [2021-11-19 14:03:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 14:03:05,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:05,939 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:05,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:06,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:06,163 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 31 more)] === [2021-11-19 14:03:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:06,164 INFO L85 PathProgramCache]: Analyzing trace with hash -735065216, now seen corresponding path program 1 times [2021-11-19 14:03:06,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:06,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172832021] [2021-11-19 14:03:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:06,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:06,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:06,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:03:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:08,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2465 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:03:08,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:03:09,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 14:03:09,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:09,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172832021] [2021-11-19 14:03:09,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172832021] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:03:09,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:03:09,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-19 14:03:09,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893578244] [2021-11-19 14:03:09,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:09,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:03:09,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:09,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:03:09,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:03:09,407 INFO L87 Difference]: Start difference. First operand 3313 states and 4551 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:03:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:11,432 INFO L93 Difference]: Finished difference Result 7019 states and 9717 transitions. [2021-11-19 14:03:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:03:11,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 77 [2021-11-19 14:03:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:11,469 INFO L225 Difference]: With dead ends: 7019 [2021-11-19 14:03:11,469 INFO L226 Difference]: Without dead ends: 4192 [2021-11-19 14:03:11,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:03:11,488 INFO L933 BasicCegarLoop]: 5001 mSDtfsCounter, 1455 mSDsluCounter, 18704 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 23705 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:11,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1649 Valid, 23705 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 14:03:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2021-11-19 14:03:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3311. [2021-11-19 14:03:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 2223 states have (on average 1.2847503373819162) internal successors, (2856), 2316 states have internal predecessors, (2856), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 4547 transitions. [2021-11-19 14:03:11,758 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 4547 transitions. Word has length 77 [2021-11-19 14:03:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:11,758 INFO L470 AbstractCegarLoop]: Abstraction has 3311 states and 4547 transitions. [2021-11-19 14:03:11,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:03:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 4547 transitions. [2021-11-19 14:03:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-19 14:03:11,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:11,761 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:11,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:11,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:11,976 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 31 more)] === [2021-11-19 14:03:11,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:11,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1206614909, now seen corresponding path program 1 times [2021-11-19 14:03:11,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:11,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468055074] [2021-11-19 14:03:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:11,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:11,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:11,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:11,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:03:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:14,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:14,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:15,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:15,456 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:15,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468055074] [2021-11-19 14:03:15,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468055074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:15,456 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:15,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:15,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640323804] [2021-11-19 14:03:15,456 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:15,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:15,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:15,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:15,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:15,457 INFO L87 Difference]: Start difference. First operand 3311 states and 4547 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, (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 14:03:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:15,721 INFO L93 Difference]: Finished difference Result 3311 states and 4547 transitions. [2021-11-19 14:03:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:15,722 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, (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 93 [2021-11-19 14:03:15,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:15,748 INFO L225 Difference]: With dead ends: 3311 [2021-11-19 14:03:15,749 INFO L226 Difference]: Without dead ends: 3309 [2021-11-19 14:03:15,751 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 14:03:15,752 INFO L933 BasicCegarLoop]: 4090 mSDtfsCounter, 4019 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4021 SdHoareTripleChecker+Valid, 8178 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 14:03:15,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4021 Valid, 8178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2021-11-19 14:03:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 3309. [2021-11-19 14:03:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 2222 states have (on average 1.2844284428442845) internal successors, (2854), 2314 states have internal predecessors, (2854), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 4545 transitions. [2021-11-19 14:03:15,990 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 4545 transitions. Word has length 93 [2021-11-19 14:03:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:15,991 INFO L470 AbstractCegarLoop]: Abstraction has 3309 states and 4545 transitions. [2021-11-19 14:03:15,991 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, (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 14:03:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 4545 transitions. [2021-11-19 14:03:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-19 14:03:16,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:16,000 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:16,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:16,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:16,219 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 31 more)] === [2021-11-19 14:03:16,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:16,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1360460764, now seen corresponding path program 1 times [2021-11-19 14:03:16,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:16,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111894261] [2021-11-19 14:03:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:16,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:16,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:16,223 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:16,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:03:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:18,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 2507 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:18,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:19,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:19,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:19,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111894261] [2021-11-19 14:03:19,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111894261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:19,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:19,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:19,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026390760] [2021-11-19 14:03:19,746 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:19,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:19,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:19,747 INFO L87 Difference]: Start difference. First operand 3309 states and 4545 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, (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 14:03:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:19,954 INFO L93 Difference]: Finished difference Result 3309 states and 4545 transitions. [2021-11-19 14:03:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:19,955 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, (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 99 [2021-11-19 14:03:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:19,980 INFO L225 Difference]: With dead ends: 3309 [2021-11-19 14:03:19,980 INFO L226 Difference]: Without dead ends: 3307 [2021-11-19 14:03:19,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 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 14:03:19,984 INFO L933 BasicCegarLoop]: 4088 mSDtfsCounter, 4008 mSDsluCounter, 8172 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4010 SdHoareTripleChecker+Valid, 12260 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 14:03:19,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4010 Valid, 12260 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2021-11-19 14:03:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3307. [2021-11-19 14:03:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2221 states have (on average 1.2841062584421432) internal successors, (2852), 2312 states have internal predecessors, (2852), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4543 transitions. [2021-11-19 14:03:20,211 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4543 transitions. Word has length 99 [2021-11-19 14:03:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:20,212 INFO L470 AbstractCegarLoop]: Abstraction has 3307 states and 4543 transitions. [2021-11-19 14:03:20,212 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, (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 14:03:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4543 transitions. [2021-11-19 14:03:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 14:03:20,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:20,215 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:20,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 14:03:20,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:20,440 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 31 more)] === [2021-11-19 14:03:20,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2076992642, now seen corresponding path program 1 times [2021-11-19 14:03:20,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:20,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480845748] [2021-11-19 14:03:20,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:20,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:20,443 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:20,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:03:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:22,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 2516 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:22,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:23,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:24,067 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:24,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480845748] [2021-11-19 14:03:24,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480845748] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:24,067 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:24,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:24,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119015791] [2021-11-19 14:03:24,071 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:24,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:24,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:24,076 INFO L87 Difference]: Start difference. First operand 3307 states and 4543 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, (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 14:03:24,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:24,346 INFO L93 Difference]: Finished difference Result 3307 states and 4543 transitions. [2021-11-19 14:03:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:24,347 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, (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 105 [2021-11-19 14:03:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:24,375 INFO L225 Difference]: With dead ends: 3307 [2021-11-19 14:03:24,376 INFO L226 Difference]: Without dead ends: 3305 [2021-11-19 14:03:24,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 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 14:03:24,380 INFO L933 BasicCegarLoop]: 4086 mSDtfsCounter, 4000 mSDsluCounter, 8168 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 12254 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 14:03:24,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4002 Valid, 12254 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:24,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2021-11-19 14:03:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3305. [2021-11-19 14:03:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2220 states have (on average 1.2837837837837838) internal successors, (2850), 2310 states have internal predecessors, (2850), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4541 transitions. [2021-11-19 14:03:24,614 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4541 transitions. Word has length 105 [2021-11-19 14:03:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:24,615 INFO L470 AbstractCegarLoop]: Abstraction has 3305 states and 4541 transitions. [2021-11-19 14:03:24,615 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, (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 14:03:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4541 transitions. [2021-11-19 14:03:24,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-19 14:03:24,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:24,617 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:24,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:24,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:24,831 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 31 more)] === [2021-11-19 14:03:24,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:24,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1353141886, now seen corresponding path program 1 times [2021-11-19 14:03:24,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:24,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648537863] [2021-11-19 14:03:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:24,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:24,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:24,835 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:24,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:03:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:27,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 2525 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:27,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:28,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:28,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:28,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648537863] [2021-11-19 14:03:28,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648537863] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:28,487 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:28,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:28,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381895831] [2021-11-19 14:03:28,487 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:28,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:28,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:28,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:28,489 INFO L87 Difference]: Start difference. First operand 3305 states and 4541 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, (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 14:03:28,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:28,651 INFO L93 Difference]: Finished difference Result 3305 states and 4541 transitions. [2021-11-19 14:03:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:28,652 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, (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 111 [2021-11-19 14:03:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:28,667 INFO L225 Difference]: With dead ends: 3305 [2021-11-19 14:03:28,667 INFO L226 Difference]: Without dead ends: 3303 [2021-11-19 14:03:28,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 217 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 14:03:28,670 INFO L933 BasicCegarLoop]: 4084 mSDtfsCounter, 3995 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3997 SdHoareTripleChecker+Valid, 8166 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 14:03:28,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3997 Valid, 8166 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-11-19 14:03:28,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3303. [2021-11-19 14:03:28,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 2219 states have (on average 1.2834610184767914) internal successors, (2848), 2308 states have internal predecessors, (2848), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:28,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4539 transitions. [2021-11-19 14:03:28,922 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4539 transitions. Word has length 111 [2021-11-19 14:03:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:28,923 INFO L470 AbstractCegarLoop]: Abstraction has 3303 states and 4539 transitions. [2021-11-19 14:03:28,923 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, (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 14:03:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4539 transitions. [2021-11-19 14:03:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-19 14:03:28,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:28,926 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:28,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:29,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:29,139 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 31 more)] === [2021-11-19 14:03:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1154251872, now seen corresponding path program 1 times [2021-11-19 14:03:29,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:29,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210856083] [2021-11-19 14:03:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:29,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:29,143 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:29,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:03:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:31,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:31,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:32,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:32,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:32,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210856083] [2021-11-19 14:03:32,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210856083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:32,860 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:32,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:32,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062870757] [2021-11-19 14:03:32,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:32,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:32,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:32,862 INFO L87 Difference]: Start difference. First operand 3303 states and 4539 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 14:03:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:33,103 INFO L93 Difference]: Finished difference Result 3303 states and 4539 transitions. [2021-11-19 14:03:33,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:33,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 117 [2021-11-19 14:03:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:33,119 INFO L225 Difference]: With dead ends: 3303 [2021-11-19 14:03:33,119 INFO L226 Difference]: Without dead ends: 3301 [2021-11-19 14:03:33,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 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 14:03:33,122 INFO L933 BasicCegarLoop]: 4082 mSDtfsCounter, 3987 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 8162 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 14:03:33,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3989 Valid, 8162 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2021-11-19 14:03:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 3301. [2021-11-19 14:03:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3301 states, 2218 states have (on average 1.2831379621280432) internal successors, (2846), 2306 states have internal predecessors, (2846), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 4537 transitions. [2021-11-19 14:03:33,377 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 4537 transitions. Word has length 117 [2021-11-19 14:03:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:33,377 INFO L470 AbstractCegarLoop]: Abstraction has 3301 states and 4537 transitions. [2021-11-19 14:03:33,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 14:03:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 4537 transitions. [2021-11-19 14:03:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 14:03:33,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:33,381 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:33,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:33,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:33,595 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 31 more)] === [2021-11-19 14:03:33,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:33,596 INFO L85 PathProgramCache]: Analyzing trace with hash 961514361, now seen corresponding path program 1 times [2021-11-19 14:03:33,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:33,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743008833] [2021-11-19 14:03:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:33,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:33,599 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:33,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:03:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:36,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 2543 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:36,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:36,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:37,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:37,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743008833] [2021-11-19 14:03:37,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743008833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:37,376 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:37,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:37,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647950759] [2021-11-19 14:03:37,376 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:37,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:37,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:37,378 INFO L87 Difference]: Start difference. First operand 3301 states and 4537 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 14:03:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:37,556 INFO L93 Difference]: Finished difference Result 3301 states and 4537 transitions. [2021-11-19 14:03:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 123 [2021-11-19 14:03:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:37,569 INFO L225 Difference]: With dead ends: 3301 [2021-11-19 14:03:37,570 INFO L226 Difference]: Without dead ends: 3299 [2021-11-19 14:03:37,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 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 14:03:37,573 INFO L933 BasicCegarLoop]: 4080 mSDtfsCounter, 3979 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 8158 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 14:03:37,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3981 Valid, 8158 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-11-19 14:03:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3299. [2021-11-19 14:03:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2217 states have (on average 1.2828146143437078) internal successors, (2844), 2304 states have internal predecessors, (2844), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4535 transitions. [2021-11-19 14:03:37,893 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4535 transitions. Word has length 123 [2021-11-19 14:03:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:37,894 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4535 transitions. [2021-11-19 14:03:37,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 14:03:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4535 transitions. [2021-11-19 14:03:37,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 14:03:37,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:37,897 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:37,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:38,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:38,111 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 31 more)] === [2021-11-19 14:03:38,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:38,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1339075866, now seen corresponding path program 1 times [2021-11-19 14:03:38,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:38,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557675537] [2021-11-19 14:03:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:38,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:38,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:38,117 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:38,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:03:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:40,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 2552 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:40,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:41,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:42,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:42,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557675537] [2021-11-19 14:03:42,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557675537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:42,132 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:42,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:42,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34735453] [2021-11-19 14:03:42,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:42,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:42,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:42,134 INFO L87 Difference]: Start difference. First operand 3299 states and 4535 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 14:03:42,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:42,333 INFO L93 Difference]: Finished difference Result 3299 states and 4535 transitions. [2021-11-19 14:03:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:42,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 129 [2021-11-19 14:03:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:42,347 INFO L225 Difference]: With dead ends: 3299 [2021-11-19 14:03:42,347 INFO L226 Difference]: Without dead ends: 3297 [2021-11-19 14:03:42,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 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 14:03:42,351 INFO L933 BasicCegarLoop]: 4078 mSDtfsCounter, 3968 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3970 SdHoareTripleChecker+Valid, 12230 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 14:03:42,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3970 Valid, 12230 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-11-19 14:03:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 3297. [2021-11-19 14:03:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2216 states have (on average 1.282490974729242) internal successors, (2842), 2302 states have internal predecessors, (2842), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 4533 transitions. [2021-11-19 14:03:42,631 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 4533 transitions. Word has length 129 [2021-11-19 14:03:42,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:42,633 INFO L470 AbstractCegarLoop]: Abstraction has 3297 states and 4533 transitions. [2021-11-19 14:03:42,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 14:03:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 4533 transitions. [2021-11-19 14:03:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 14:03:42,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:42,636 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 14:03:42,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:42,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:42,859 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 31 more)] === [2021-11-19 14:03:42,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash 880789266, now seen corresponding path program 1 times [2021-11-19 14:03:42,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:42,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752190444] [2021-11-19 14:03:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:42,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:42,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:42,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:03:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:45,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:03:45,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-19 14:03:46,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:47,358 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-19 14:03:47,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:47,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752190444] [2021-11-19 14:03:47,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752190444] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:03:47,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115167750] [2021-11-19 14:03:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:47,359 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:47,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:03:47,361 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:03:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-19 14:03:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:49,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:03:49,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 14:03:49,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 14:03:50,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1115167750] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:50,087 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:03:50,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:03:50,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89429775] [2021-11-19 14:03:50,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:50,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:03:50,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:03:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:03:50,089 INFO L87 Difference]: Start difference. First operand 3297 states and 4533 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:03:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:50,524 INFO L93 Difference]: Finished difference Result 6322 states and 8675 transitions. [2021-11-19 14:03:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:03:50,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 168 [2021-11-19 14:03:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:50,577 INFO L225 Difference]: With dead ends: 6322 [2021-11-19 14:03:50,577 INFO L226 Difference]: Without dead ends: 3291 [2021-11-19 14:03:50,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:03:50,593 INFO L933 BasicCegarLoop]: 4074 mSDtfsCounter, 4056 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:03:50,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4056 Valid, 4074 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:03:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2021-11-19 14:03:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3291. [2021-11-19 14:03:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 2211 states have (on average 1.281320669380371) internal successors, (2833), 2296 states have internal predecessors, (2833), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 4524 transitions. [2021-11-19 14:03:50,919 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 4524 transitions. Word has length 168 [2021-11-19 14:03:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:50,919 INFO L470 AbstractCegarLoop]: Abstraction has 3291 states and 4524 transitions. [2021-11-19 14:03:50,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 14:03:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 4524 transitions. [2021-11-19 14:03:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-19 14:03:50,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:50,925 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:03:50,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:51,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:51,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:03:51,340 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 31 more)] === [2021-11-19 14:03:51,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 232058357, now seen corresponding path program 1 times [2021-11-19 14:03:51,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:51,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821497617] [2021-11-19 14:03:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:51,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:51,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:51,348 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:51,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:03:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:54,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:03:54,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:03:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:55,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:03:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:03:56,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:03:56,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821497617] [2021-11-19 14:03:56,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821497617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:03:56,055 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:03:56,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:03:56,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980171739] [2021-11-19 14:03:56,056 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:03:56,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:03:56,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:03:56,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:03:56,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:03:56,058 INFO L87 Difference]: Start difference. First operand 3291 states and 4524 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:03:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:03:56,347 INFO L93 Difference]: Finished difference Result 3291 states and 4524 transitions. [2021-11-19 14:03:56,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:03:56,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 135 [2021-11-19 14:03:56,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:03:56,359 INFO L225 Difference]: With dead ends: 3291 [2021-11-19 14:03:56,359 INFO L226 Difference]: Without dead ends: 3289 [2021-11-19 14:03:56,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 265 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 14:03:56,361 INFO L933 BasicCegarLoop]: 4071 mSDtfsCounter, 3966 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3968 SdHoareTripleChecker+Valid, 8136 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 14:03:56,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3968 Valid, 8136 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:03:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2021-11-19 14:03:56,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3289. [2021-11-19 14:03:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 2210 states have (on average 1.280995475113122) internal successors, (2831), 2294 states have internal predecessors, (2831), 845 states have call successors, (845), 214 states have call predecessors, (845), 211 states have return successors, (846), 832 states have call predecessors, (846), 843 states have call successors, (846) [2021-11-19 14:03:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4522 transitions. [2021-11-19 14:03:56,669 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4522 transitions. Word has length 135 [2021-11-19 14:03:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:03:56,670 INFO L470 AbstractCegarLoop]: Abstraction has 3289 states and 4522 transitions. [2021-11-19 14:03:56,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:03:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4522 transitions. [2021-11-19 14:03:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 14:03:56,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:03:56,674 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 14:03:56,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:03:56,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:03:56,895 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 31 more)] === [2021-11-19 14:03:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:03:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1281535613, now seen corresponding path program 1 times [2021-11-19 14:03:56,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:03:56,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341762286] [2021-11-19 14:03:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:03:56,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:03:56,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:03:56,902 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:03:56,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:03:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:03:59,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:03:59,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-11-19 14:04:00,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-11-19 14:04:01,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:01,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341762286] [2021-11-19 14:04:01,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341762286] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:04:01,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:04:01,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 14:04:01,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020970192] [2021-11-19 14:04:01,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:01,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:04:01,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:01,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:04:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:04:01,018 INFO L87 Difference]: Start difference. First operand 3289 states and 4522 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:04:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:02,687 INFO L93 Difference]: Finished difference Result 6651 states and 9172 transitions. [2021-11-19 14:04:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:04:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 174 [2021-11-19 14:04:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:02,707 INFO L225 Difference]: With dead ends: 6651 [2021-11-19 14:04:02,707 INFO L226 Difference]: Without dead ends: 3571 [2021-11-19 14:04:02,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:04:02,725 INFO L933 BasicCegarLoop]: 4183 mSDtfsCounter, 732 mSDsluCounter, 16371 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 20554 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:02,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 20554 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 14:04:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-11-19 14:04:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3133. [2021-11-19 14:04:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 2099 states have (on average 1.2825154835636017) internal successors, (2692), 2179 states have internal predecessors, (2692), 800 states have call successors, (800), 214 states have call predecessors, (800), 211 states have return successors, (801), 787 states have call predecessors, (801), 798 states have call successors, (801) [2021-11-19 14:04:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4293 transitions. [2021-11-19 14:04:03,113 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4293 transitions. Word has length 174 [2021-11-19 14:04:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:03,114 INFO L470 AbstractCegarLoop]: Abstraction has 3133 states and 4293 transitions. [2021-11-19 14:04:03,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 14:04:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4293 transitions. [2021-11-19 14:04:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 14:04:03,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:03,117 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 14:04:03,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:03,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:03,339 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 31 more)] === [2021-11-19 14:04:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1892804671, now seen corresponding path program 1 times [2021-11-19 14:04:03,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:03,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944381742] [2021-11-19 14:04:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:03,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:03,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:03,345 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:03,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:04:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:06,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:04:06,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 14:04:06,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-19 14:04:07,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:07,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944381742] [2021-11-19 14:04:07,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944381742] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:04:07,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341892937] [2021-11-19 14:04:07,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:07,958 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:04:07,960 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:04:07,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-19 14:04:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:09,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:04:09,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-11-19 14:04:10,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2021-11-19 14:04:10,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1341892937] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:10,931 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:04:10,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:04:10,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021271782] [2021-11-19 14:04:10,932 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:10,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:04:10,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:04:10,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:04:10,934 INFO L87 Difference]: Start difference. First operand 3133 states and 4293 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:04:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:14,399 INFO L93 Difference]: Finished difference Result 6132 states and 8383 transitions. [2021-11-19 14:04:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:04:14,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 174 [2021-11-19 14:04:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:14,411 INFO L225 Difference]: With dead ends: 6132 [2021-11-19 14:04:14,411 INFO L226 Difference]: Without dead ends: 3169 [2021-11-19 14:04:14,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:04:14,423 INFO L933 BasicCegarLoop]: 4109 mSDtfsCounter, 6572 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6572 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1514 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:14,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6572 Valid, 4158 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1514 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-19 14:04:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2021-11-19 14:04:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3167. [2021-11-19 14:04:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 2120 states have (on average 1.2792452830188679) internal successors, (2712), 2200 states have internal predecessors, (2712), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 4325 transitions. [2021-11-19 14:04:14,744 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 4325 transitions. Word has length 174 [2021-11-19 14:04:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:14,745 INFO L470 AbstractCegarLoop]: Abstraction has 3167 states and 4325 transitions. [2021-11-19 14:04:14,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-19 14:04:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 4325 transitions. [2021-11-19 14:04:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-19 14:04:14,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:14,749 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:14,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:14,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:15,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:04:15,169 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 31 more)] === [2021-11-19 14:04:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:15,169 INFO L85 PathProgramCache]: Analyzing trace with hash -329995976, now seen corresponding path program 1 times [2021-11-19 14:04:15,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:15,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260502166] [2021-11-19 14:04:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:15,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:15,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:15,175 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:15,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:04:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:17,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:17,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:18,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:19,030 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:19,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260502166] [2021-11-19 14:04:19,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260502166] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:19,030 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:19,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:19,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152637578] [2021-11-19 14:04:19,031 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:19,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:19,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:19,032 INFO L87 Difference]: Start difference. First operand 3167 states and 4325 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:04:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:19,246 INFO L93 Difference]: Finished difference Result 3167 states and 4325 transitions. [2021-11-19 14:04:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 137 [2021-11-19 14:04:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:19,255 INFO L225 Difference]: With dead ends: 3167 [2021-11-19 14:04:19,255 INFO L226 Difference]: Without dead ends: 3165 [2021-11-19 14:04:19,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 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 14:04:19,257 INFO L933 BasicCegarLoop]: 4064 mSDtfsCounter, 3949 mSDsluCounter, 4062 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3951 SdHoareTripleChecker+Valid, 8126 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 14:04:19,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3951 Valid, 8126 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2021-11-19 14:04:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3165. [2021-11-19 14:04:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3165 states, 2119 states have (on average 1.2789051439358188) internal successors, (2710), 2198 states have internal predecessors, (2710), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 4323 transitions. [2021-11-19 14:04:19,710 INFO L78 Accepts]: Start accepts. Automaton has 3165 states and 4323 transitions. Word has length 137 [2021-11-19 14:04:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:19,710 INFO L470 AbstractCegarLoop]: Abstraction has 3165 states and 4323 transitions. [2021-11-19 14:04:19,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:04:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3165 states and 4323 transitions. [2021-11-19 14:04:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-19 14:04:19,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:19,714 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:19,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:19,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:19,939 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 31 more)] === [2021-11-19 14:04:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1183084685, now seen corresponding path program 1 times [2021-11-19 14:04:19,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:19,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786083222] [2021-11-19 14:04:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:19,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:19,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:19,945 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:19,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:04:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:22,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:22,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:23,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:24,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:24,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786083222] [2021-11-19 14:04:24,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786083222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:24,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:24,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:24,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031295159] [2021-11-19 14:04:24,082 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:24,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:24,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:24,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:24,084 INFO L87 Difference]: Start difference. First operand 3165 states and 4323 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, (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 14:04:24,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:24,361 INFO L93 Difference]: Finished difference Result 3165 states and 4323 transitions. [2021-11-19 14:04:24,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:24,361 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, (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 143 [2021-11-19 14:04:24,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:24,371 INFO L225 Difference]: With dead ends: 3165 [2021-11-19 14:04:24,372 INFO L226 Difference]: Without dead ends: 3163 [2021-11-19 14:04:24,374 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 14:04:24,374 INFO L933 BasicCegarLoop]: 4062 mSDtfsCounter, 3938 mSDsluCounter, 8120 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 12182 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 14:04:24,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3940 Valid, 12182 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2021-11-19 14:04:24,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3163. [2021-11-19 14:04:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2118 states have (on average 1.2785646836638338) internal successors, (2708), 2196 states have internal predecessors, (2708), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4321 transitions. [2021-11-19 14:04:24,760 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4321 transitions. Word has length 143 [2021-11-19 14:04:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:24,762 INFO L470 AbstractCegarLoop]: Abstraction has 3163 states and 4321 transitions. [2021-11-19 14:04:24,762 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, (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 14:04:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4321 transitions. [2021-11-19 14:04:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-19 14:04:24,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:24,766 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:24,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:24,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:24,991 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 31 more)] === [2021-11-19 14:04:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:24,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1836254909, now seen corresponding path program 1 times [2021-11-19 14:04:24,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:24,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660729055] [2021-11-19 14:04:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:24,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:24,998 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:25,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:04:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:28,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:28,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:29,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:29,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:29,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660729055] [2021-11-19 14:04:29,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660729055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:29,524 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:29,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:29,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604981585] [2021-11-19 14:04:29,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:29,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:29,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:29,528 INFO L87 Difference]: Start difference. First operand 3163 states and 4321 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 14:04:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:29,793 INFO L93 Difference]: Finished difference Result 3163 states and 4321 transitions. [2021-11-19 14:04:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:29,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 149 [2021-11-19 14:04:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:29,806 INFO L225 Difference]: With dead ends: 3163 [2021-11-19 14:04:29,806 INFO L226 Difference]: Without dead ends: 3161 [2021-11-19 14:04:29,809 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 14:04:29,810 INFO L933 BasicCegarLoop]: 4060 mSDtfsCounter, 3933 mSDsluCounter, 4058 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3935 SdHoareTripleChecker+Valid, 8118 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 14:04:29,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3935 Valid, 8118 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-11-19 14:04:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3161. [2021-11-19 14:04:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3161 states, 2117 states have (on average 1.2782239017477564) internal successors, (2706), 2194 states have internal predecessors, (2706), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 4319 transitions. [2021-11-19 14:04:30,111 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 4319 transitions. Word has length 149 [2021-11-19 14:04:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:30,112 INFO L470 AbstractCegarLoop]: Abstraction has 3161 states and 4319 transitions. [2021-11-19 14:04:30,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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 14:04:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 4319 transitions. [2021-11-19 14:04:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-19 14:04:30,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:30,116 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:30,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:30,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:30,331 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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 31 more)] === [2021-11-19 14:04:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:30,332 INFO L85 PathProgramCache]: Analyzing trace with hash -317996106, now seen corresponding path program 1 times [2021-11-19 14:04:30,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:30,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547720132] [2021-11-19 14:04:30,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:30,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:30,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:30,336 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:30,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:04:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:33,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 2591 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:33,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:34,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:34,780 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:34,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:34,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547720132] [2021-11-19 14:04:34,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547720132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:34,780 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:34,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:34,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737042960] [2021-11-19 14:04:34,780 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:34,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:34,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:34,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:34,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:34,782 INFO L87 Difference]: Start difference. First operand 3161 states and 4319 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, (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 14:04:35,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:35,052 INFO L93 Difference]: Finished difference Result 3161 states and 4319 transitions. [2021-11-19 14:04:35,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:35,053 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, (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 155 [2021-11-19 14:04:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:35,065 INFO L225 Difference]: With dead ends: 3161 [2021-11-19 14:04:35,065 INFO L226 Difference]: Without dead ends: 3159 [2021-11-19 14:04:35,068 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 14:04:35,069 INFO L933 BasicCegarLoop]: 4058 mSDtfsCounter, 3925 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3927 SdHoareTripleChecker+Valid, 8114 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 14:04:35,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3927 Valid, 8114 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-11-19 14:04:35,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3159. [2021-11-19 14:04:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 2116 states have (on average 1.277882797731569) internal successors, (2704), 2192 states have internal predecessors, (2704), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:35,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4317 transitions. [2021-11-19 14:04:35,490 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4317 transitions. Word has length 155 [2021-11-19 14:04:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:35,490 INFO L470 AbstractCegarLoop]: Abstraction has 3159 states and 4317 transitions. [2021-11-19 14:04:35,491 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, (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 14:04:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4317 transitions. [2021-11-19 14:04:35,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-19 14:04:35,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:35,495 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:35,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:35,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:35,720 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 31 more)] === [2021-11-19 14:04:35,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1252364953, now seen corresponding path program 1 times [2021-11-19 14:04:35,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:35,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192010278] [2021-11-19 14:04:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:35,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:35,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:35,726 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:35,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:04:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:38,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:38,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:39,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:39,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:39,810 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:39,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192010278] [2021-11-19 14:04:39,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192010278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:39,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:39,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:39,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475924858] [2021-11-19 14:04:39,810 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:39,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:39,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:39,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:39,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:39,812 INFO L87 Difference]: Start difference. First operand 3159 states and 4317 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, (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 14:04:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:40,143 INFO L93 Difference]: Finished difference Result 3159 states and 4317 transitions. [2021-11-19 14:04:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:40,143 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, (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 161 [2021-11-19 14:04:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:40,152 INFO L225 Difference]: With dead ends: 3159 [2021-11-19 14:04:40,152 INFO L226 Difference]: Without dead ends: 3157 [2021-11-19 14:04:40,153 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 14:04:40,154 INFO L933 BasicCegarLoop]: 4056 mSDtfsCounter, 3917 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 8110 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 14:04:40,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3919 Valid, 8110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2021-11-19 14:04:40,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 3157. [2021-11-19 14:04:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 2115 states have (on average 1.2775413711583925) internal successors, (2702), 2190 states have internal predecessors, (2702), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4315 transitions. [2021-11-19 14:04:40,528 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4315 transitions. Word has length 161 [2021-11-19 14:04:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:40,529 INFO L470 AbstractCegarLoop]: Abstraction has 3157 states and 4315 transitions. [2021-11-19 14:04:40,529 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, (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 14:04:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4315 transitions. [2021-11-19 14:04:40,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-19 14:04:40,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:40,533 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:40,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:40,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:40,748 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 31 more)] === [2021-11-19 14:04:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:40,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1875333648, now seen corresponding path program 1 times [2021-11-19 14:04:40,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:40,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694706689] [2021-11-19 14:04:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:40,751 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:40,752 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:40,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:04:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:43,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:43,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:44,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:44,943 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:44,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694706689] [2021-11-19 14:04:44,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694706689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:44,944 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:44,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:44,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422736374] [2021-11-19 14:04:44,944 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:44,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:44,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:44,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:44,945 INFO L87 Difference]: Start difference. First operand 3157 states and 4315 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, (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 14:04:45,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:45,289 INFO L93 Difference]: Finished difference Result 3157 states and 4315 transitions. [2021-11-19 14:04:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:45,290 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, (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 167 [2021-11-19 14:04:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:45,299 INFO L225 Difference]: With dead ends: 3157 [2021-11-19 14:04:45,299 INFO L226 Difference]: Without dead ends: 3155 [2021-11-19 14:04:45,300 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 14:04:45,301 INFO L933 BasicCegarLoop]: 4054 mSDtfsCounter, 3906 mSDsluCounter, 8104 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3908 SdHoareTripleChecker+Valid, 12158 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 14:04:45,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3908 Valid, 12158 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2021-11-19 14:04:45,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3155. [2021-11-19 14:04:45,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 2114 states have (on average 1.2771996215704824) internal successors, (2700), 2188 states have internal predecessors, (2700), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4313 transitions. [2021-11-19 14:04:45,610 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4313 transitions. Word has length 167 [2021-11-19 14:04:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:45,610 INFO L470 AbstractCegarLoop]: Abstraction has 3155 states and 4313 transitions. [2021-11-19 14:04:45,611 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, (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 14:04:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4313 transitions. [2021-11-19 14:04:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-19 14:04:45,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:45,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:04:45,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:45,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:45,819 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 31 more)] === [2021-11-19 14:04:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1054876189, now seen corresponding path program 1 times [2021-11-19 14:04:45,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:45,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555056207] [2021-11-19 14:04:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:45,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:45,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:45,824 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:45,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:04:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:48,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:48,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:49,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:50,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:50,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555056207] [2021-11-19 14:04:50,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555056207] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:50,657 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:50,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:04:50,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656904946] [2021-11-19 14:04:50,658 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:50,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:04:50,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:50,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:04:50,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:04:50,659 INFO L87 Difference]: Start difference. First operand 3155 states and 4313 transitions. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-19 14:04:53,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:53,501 INFO L93 Difference]: Finished difference Result 3155 states and 4313 transitions. [2021-11-19 14:04:53,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:53,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 173 [2021-11-19 14:04:53,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:53,514 INFO L225 Difference]: With dead ends: 3155 [2021-11-19 14:04:53,514 INFO L226 Difference]: Without dead ends: 3153 [2021-11-19 14:04:53,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 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 14:04:53,517 INFO L933 BasicCegarLoop]: 4052 mSDtfsCounter, 6410 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6412 SdHoareTripleChecker+Valid, 8102 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1492 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:04:53,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6412 Valid, 8102 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1492 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:04:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2021-11-19 14:04:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3153. [2021-11-19 14:04:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2113 states have (on average 1.2768575485092286) internal successors, (2698), 2186 states have internal predecessors, (2698), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 4311 transitions. [2021-11-19 14:04:53,923 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 4311 transitions. Word has length 173 [2021-11-19 14:04:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:53,923 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 4311 transitions. [2021-11-19 14:04:53,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 3 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-19 14:04:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 4311 transitions. [2021-11-19 14:04:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-19 14:04:53,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:53,927 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1] [2021-11-19 14:04:53,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-11-19 14:04:54,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:54,127 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 31 more)] === [2021-11-19 14:04:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash -938652069, now seen corresponding path program 1 times [2021-11-19 14:04:54,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:54,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604055226] [2021-11-19 14:04:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:54,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:54,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:54,132 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:54,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:04:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:04:56,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 2627 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:04:56,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:04:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:57,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:04:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:04:58,506 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:04:58,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604055226] [2021-11-19 14:04:58,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604055226] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:04:58,506 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:04:58,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:04:58,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037793791] [2021-11-19 14:04:58,506 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:04:58,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:04:58,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:04:58,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:04:58,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:04:58,508 INFO L87 Difference]: Start difference. First operand 3153 states and 4311 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:04:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:04:58,905 INFO L93 Difference]: Finished difference Result 3153 states and 4311 transitions. [2021-11-19 14:04:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:04:58,906 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 179 [2021-11-19 14:04:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:04:58,914 INFO L225 Difference]: With dead ends: 3153 [2021-11-19 14:04:58,915 INFO L226 Difference]: Without dead ends: 3151 [2021-11-19 14:04:58,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 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 14:04:58,917 INFO L933 BasicCegarLoop]: 4050 mSDtfsCounter, 3890 mSDsluCounter, 8096 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3892 SdHoareTripleChecker+Valid, 12146 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 14:04:58,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3892 Valid, 12146 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:04:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2021-11-19 14:04:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 3151. [2021-11-19 14:04:59,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3151 states, 2112 states have (on average 1.2765151515151516) internal successors, (2696), 2184 states have internal predecessors, (2696), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:04:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 4309 transitions. [2021-11-19 14:04:59,212 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 4309 transitions. Word has length 179 [2021-11-19 14:04:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:04:59,213 INFO L470 AbstractCegarLoop]: Abstraction has 3151 states and 4309 transitions. [2021-11-19 14:04:59,213 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, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:04:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 4309 transitions. [2021-11-19 14:04:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-19 14:04:59,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:59,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:59,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:04:59,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:04:59,426 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 31 more)] === [2021-11-19 14:04:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1133971844, now seen corresponding path program 1 times [2021-11-19 14:04:59,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:59,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41852228] [2021-11-19 14:04:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:59,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:59,430 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:59,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:05:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:02,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:05:02,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 222 proven. 3 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-19 14:05:03,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 57 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 14:05:04,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:04,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41852228] [2021-11-19 14:05:04,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41852228] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:05:04,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [972016170] [2021-11-19 14:05:04,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:04,601 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:05:04,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:05:04,605 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:05:04,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-19 14:05:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:11,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:05:11,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 14:05:12,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2021-11-19 14:05:13,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [972016170] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:05:13,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:05:13,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 14:05:13,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089882192] [2021-11-19 14:05:13,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:13,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:05:13,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:13,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:05:13,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:05:13,127 INFO L87 Difference]: Start difference. First operand 3151 states and 4309 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-19 14:05:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:13,570 INFO L93 Difference]: Finished difference Result 6636 states and 9148 transitions. [2021-11-19 14:05:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:05:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 228 [2021-11-19 14:05:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:13,581 INFO L225 Difference]: With dead ends: 6636 [2021-11-19 14:05:13,581 INFO L226 Difference]: Without dead ends: 3582 [2021-11-19 14:05:13,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:05:13,592 INFO L933 BasicCegarLoop]: 4711 mSDtfsCounter, 495 mSDsluCounter, 18150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 22861 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:13,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 22861 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2021-11-19 14:05:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3151. [2021-11-19 14:05:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3151 states, 2112 states have (on average 1.2760416666666667) internal successors, (2695), 2183 states have internal predecessors, (2695), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:05:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 4308 transitions. [2021-11-19 14:05:13,959 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 4308 transitions. Word has length 228 [2021-11-19 14:05:13,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:13,959 INFO L470 AbstractCegarLoop]: Abstraction has 3151 states and 4308 transitions. [2021-11-19 14:05:13,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-19 14:05:13,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 4308 transitions. [2021-11-19 14:05:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-19 14:05:13,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:13,963 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:13,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:14,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-19 14:05:14,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:14,367 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 31 more)] === [2021-11-19 14:05:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:14,368 INFO L85 PathProgramCache]: Analyzing trace with hash 6827142, now seen corresponding path program 1 times [2021-11-19 14:05:14,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:14,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890448028] [2021-11-19 14:05:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:14,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:14,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:14,372 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:14,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:05:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:17,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:17,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:18,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:18,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:18,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890448028] [2021-11-19 14:05:18,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890448028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:18,742 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:18,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:18,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069989084] [2021-11-19 14:05:18,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:18,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:18,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:18,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:18,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:18,744 INFO L87 Difference]: Start difference. First operand 3151 states and 4308 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:05:19,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:19,094 INFO L93 Difference]: Finished difference Result 3151 states and 4308 transitions. [2021-11-19 14:05:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:19,094 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 185 [2021-11-19 14:05:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:19,104 INFO L225 Difference]: With dead ends: 3151 [2021-11-19 14:05:19,104 INFO L226 Difference]: Without dead ends: 3149 [2021-11-19 14:05:19,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 365 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 14:05:19,107 INFO L933 BasicCegarLoop]: 4047 mSDtfsCounter, 3884 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3886 SdHoareTripleChecker+Valid, 8092 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 14:05:19,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3886 Valid, 8092 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2021-11-19 14:05:19,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 3149. [2021-11-19 14:05:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3149 states, 2111 states have (on average 1.275698720985315) internal successors, (2693), 2181 states have internal predecessors, (2693), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:05:19,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4306 transitions. [2021-11-19 14:05:19,532 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4306 transitions. Word has length 185 [2021-11-19 14:05:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:19,532 INFO L470 AbstractCegarLoop]: Abstraction has 3149 states and 4306 transitions. [2021-11-19 14:05:19,533 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:05:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4306 transitions. [2021-11-19 14:05:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-19 14:05:19,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:19,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:19,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:19,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:19,763 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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 31 more)] === [2021-11-19 14:05:19,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:19,764 INFO L85 PathProgramCache]: Analyzing trace with hash 640684929, now seen corresponding path program 1 times [2021-11-19 14:05:19,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:19,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433420962] [2021-11-19 14:05:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:19,768 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:19,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:19,769 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:19,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:05:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:22,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 2897 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:05:22,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-19 14:05:24,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 22 proven. 45 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2021-11-19 14:05:26,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:26,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433420962] [2021-11-19 14:05:26,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433420962] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:05:26,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:05:26,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2021-11-19 14:05:26,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482168200] [2021-11-19 14:05:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:26,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:05:26,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:26,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:05:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:05:26,752 INFO L87 Difference]: Start difference. First operand 3149 states and 4306 transitions. Second operand has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 14:05:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:29,679 INFO L93 Difference]: Finished difference Result 6631 states and 9139 transitions. [2021-11-19 14:05:29,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:05:29,681 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) Word has length 232 [2021-11-19 14:05:29,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:29,689 INFO L225 Difference]: With dead ends: 6631 [2021-11-19 14:05:29,690 INFO L226 Difference]: Without dead ends: 3584 [2021-11-19 14:05:29,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:05:29,696 INFO L933 BasicCegarLoop]: 4659 mSDtfsCounter, 496 mSDsluCounter, 36505 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 41164 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:29,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 41164 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 14:05:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2021-11-19 14:05:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3149. [2021-11-19 14:05:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3149 states, 2111 states have (on average 1.2752250118427286) internal successors, (2692), 2180 states have internal predecessors, (2692), 806 states have call successors, (806), 222 states have call predecessors, (806), 219 states have return successors, (807), 792 states have call predecessors, (807), 804 states have call successors, (807) [2021-11-19 14:05:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4305 transitions. [2021-11-19 14:05:30,013 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4305 transitions. Word has length 232 [2021-11-19 14:05:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:30,014 INFO L470 AbstractCegarLoop]: Abstraction has 3149 states and 4305 transitions. [2021-11-19 14:05:30,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 14:05:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4305 transitions. [2021-11-19 14:05:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:05:30,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:30,018 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:30,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-11-19 14:05:30,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:30,231 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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 31 more)] === [2021-11-19 14:05:30,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash 254441892, now seen corresponding path program 1 times [2021-11-19 14:05:30,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:30,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90273872] [2021-11-19 14:05:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:30,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:30,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:30,237 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:30,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:05:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:33,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:05:33,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-11-19 14:05:34,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-19 14:05:36,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:36,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90273872] [2021-11-19 14:05:36,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90273872] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:36,008 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:36,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-19 14:05:36,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339947021] [2021-11-19 14:05:36,008 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:36,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:05:36,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:36,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:05:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:05:36,010 INFO L87 Difference]: Start difference. First operand 3149 states and 4305 transitions. Second operand has 25 states, 23 states have (on average 4.521739130434782) internal successors, (104), 23 states have internal predecessors, (104), 10 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2021-11-19 14:05:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:41,824 INFO L93 Difference]: Finished difference Result 6990 states and 9692 transitions. [2021-11-19 14:05:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 14:05:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 4.521739130434782) internal successors, (104), 23 states have internal predecessors, (104), 10 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 236 [2021-11-19 14:05:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:41,840 INFO L225 Difference]: With dead ends: 6990 [2021-11-19 14:05:41,840 INFO L226 Difference]: Without dead ends: 4060 [2021-11-19 14:05:41,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 14:05:41,850 INFO L933 BasicCegarLoop]: 4810 mSDtfsCounter, 4107 mSDsluCounter, 79429 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 1587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 84239 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:41,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4259 Valid, 84239 Invalid, 2805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1587 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-19 14:05:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4060 states. [2021-11-19 14:05:42,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4060 to 3165. [2021-11-19 14:05:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3165 states, 2122 states have (on average 1.2737983034872762) internal successors, (2703), 2191 states have internal predecessors, (2703), 811 states have call successors, (811), 222 states have call predecessors, (811), 219 states have return successors, (812), 797 states have call predecessors, (812), 809 states have call successors, (812) [2021-11-19 14:05:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 4326 transitions. [2021-11-19 14:05:42,354 INFO L78 Accepts]: Start accepts. Automaton has 3165 states and 4326 transitions. Word has length 236 [2021-11-19 14:05:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:42,355 INFO L470 AbstractCegarLoop]: Abstraction has 3165 states and 4326 transitions. [2021-11-19 14:05:42,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 4.521739130434782) internal successors, (104), 23 states have internal predecessors, (104), 10 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2021-11-19 14:05:42,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3165 states and 4326 transitions. [2021-11-19 14:05:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-19 14:05:42,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:42,359 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:42,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-11-19 14:05:42,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:42,584 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 31 more)] === [2021-11-19 14:05:42,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2078398781, now seen corresponding path program 1 times [2021-11-19 14:05:42,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:42,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697510759] [2021-11-19 14:05:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:42,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:42,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:42,589 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:42,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:05:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:45,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:45,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:46,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:46,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:46,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697510759] [2021-11-19 14:05:46,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697510759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:46,949 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:46,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:46,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416043925] [2021-11-19 14:05:46,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:46,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:46,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:46,951 INFO L87 Difference]: Start difference. First operand 3165 states and 4326 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:05:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:47,321 INFO L93 Difference]: Finished difference Result 3165 states and 4326 transitions. [2021-11-19 14:05:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:05:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 191 [2021-11-19 14:05:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:47,333 INFO L225 Difference]: With dead ends: 3165 [2021-11-19 14:05:47,333 INFO L226 Difference]: Without dead ends: 3163 [2021-11-19 14:05:47,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 377 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 14:05:47,336 INFO L933 BasicCegarLoop]: 4044 mSDtfsCounter, 3875 mSDsluCounter, 4042 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3877 SdHoareTripleChecker+Valid, 8086 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 14:05:47,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3877 Valid, 8086 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2021-11-19 14:05:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3163. [2021-11-19 14:05:47,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2121 states have (on average 1.2734559170202735) internal successors, (2701), 2189 states have internal predecessors, (2701), 811 states have call successors, (811), 222 states have call predecessors, (811), 219 states have return successors, (812), 797 states have call predecessors, (812), 809 states have call successors, (812) [2021-11-19 14:05:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4324 transitions. [2021-11-19 14:05:47,854 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4324 transitions. Word has length 191 [2021-11-19 14:05:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:47,855 INFO L470 AbstractCegarLoop]: Abstraction has 3163 states and 4324 transitions. [2021-11-19 14:05:47,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:05:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4324 transitions. [2021-11-19 14:05:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-19 14:05:47,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:47,860 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:47,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:48,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:48,084 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 31 more)] === [2021-11-19 14:05:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -815695759, now seen corresponding path program 1 times [2021-11-19 14:05:48,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:48,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407330801] [2021-11-19 14:05:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:48,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:48,090 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:05:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:50,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:50,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:52,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:52,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:52,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407330801] [2021-11-19 14:05:52,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407330801] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:52,812 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:52,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:52,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898270021] [2021-11-19 14:05:52,812 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:52,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:52,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:52,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:52,814 INFO L87 Difference]: Start difference. First operand 3163 states and 4324 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:05:53,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:53,657 INFO L93 Difference]: Finished difference Result 6021 states and 8261 transitions. [2021-11-19 14:05:53,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:05:53,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 197 [2021-11-19 14:05:53,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:53,680 INFO L225 Difference]: With dead ends: 6021 [2021-11-19 14:05:53,680 INFO L226 Difference]: Without dead ends: 6019 [2021-11-19 14:05:53,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 389 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 14:05:53,684 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 3867 mSDsluCounter, 8819 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 13919 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:53,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3869 Valid, 13919 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:05:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2021-11-19 14:05:54,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 5984. [2021-11-19 14:05:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 4014 states have (on average 1.276283009466866) internal successors, (5123), 4133 states have internal predecessors, (5123), 1533 states have call successors, (1533), 428 states have call predecessors, (1533), 425 states have return successors, (1576), 1511 states have call predecessors, (1576), 1531 states have call successors, (1576) [2021-11-19 14:05:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 8232 transitions. [2021-11-19 14:05:54,519 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 8232 transitions. Word has length 197 [2021-11-19 14:05:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:54,520 INFO L470 AbstractCegarLoop]: Abstraction has 5984 states and 8232 transitions. [2021-11-19 14:05:54,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:05:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 8232 transitions. [2021-11-19 14:05:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 14:05:54,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:54,524 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:54,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:05:54,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:54,740 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 31 more)] === [2021-11-19 14:05:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash -222818269, now seen corresponding path program 1 times [2021-11-19 14:05:54,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:54,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491110105] [2021-11-19 14:05:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:54,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:54,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:54,745 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:54,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 14:05:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:57,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 2663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:05:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:59,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:05:59,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:59,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491110105] [2021-11-19 14:05:59,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491110105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:05:59,732 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:05:59,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:05:59,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629414213] [2021-11-19 14:05:59,733 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:59,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:05:59,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:59,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:05:59,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:05:59,734 INFO L87 Difference]: Start difference. First operand 5984 states and 8232 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-19 14:06:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:00,513 INFO L93 Difference]: Finished difference Result 5984 states and 8232 transitions. [2021-11-19 14:06:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:00,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 203 [2021-11-19 14:06:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:00,587 INFO L225 Difference]: With dead ends: 5984 [2021-11-19 14:06:00,587 INFO L226 Difference]: Without dead ends: 5982 [2021-11-19 14:06:00,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 401 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 14:06:00,598 INFO L933 BasicCegarLoop]: 4042 mSDtfsCounter, 3861 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 8082 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 14:06:00,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3863 Valid, 8082 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:06:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2021-11-19 14:06:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 5982. [2021-11-19 14:06:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 4013 states have (on average 1.276102666334413) internal successors, (5121), 4131 states have internal predecessors, (5121), 1533 states have call successors, (1533), 428 states have call predecessors, (1533), 425 states have return successors, (1576), 1511 states have call predecessors, (1576), 1531 states have call successors, (1576) [2021-11-19 14:06:01,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8230 transitions. [2021-11-19 14:06:01,398 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8230 transitions. Word has length 203 [2021-11-19 14:06:01,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:01,398 INFO L470 AbstractCegarLoop]: Abstraction has 5982 states and 8230 transitions. [2021-11-19 14:06:01,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-19 14:06:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8230 transitions. [2021-11-19 14:06:01,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-19 14:06:01,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:01,402 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:01,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:01,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:01,623 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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 31 more)] === [2021-11-19 14:06:01,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash 135285398, now seen corresponding path program 1 times [2021-11-19 14:06:01,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:01,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634169564] [2021-11-19 14:06:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:01,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:01,628 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:01,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 14:06:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:04,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:06:04,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2021-11-19 14:06:05,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-19 14:06:05,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:05,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634169564] [2021-11-19 14:06:05,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634169564] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:05,837 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:05,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:06:05,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273406473] [2021-11-19 14:06:05,837 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:05,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:06:05,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:05,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:06:05,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:06:05,838 INFO L87 Difference]: Start difference. First operand 5982 states and 8230 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:06:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:06,717 INFO L93 Difference]: Finished difference Result 12662 states and 17544 transitions. [2021-11-19 14:06:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:06:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 257 [2021-11-19 14:06:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:06,734 INFO L225 Difference]: With dead ends: 12662 [2021-11-19 14:06:06,734 INFO L226 Difference]: Without dead ends: 6827 [2021-11-19 14:06:06,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:06:06,746 INFO L933 BasicCegarLoop]: 4716 mSDtfsCounter, 392 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 8904 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:06,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 8904 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:06:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2021-11-19 14:06:07,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 5996. [2021-11-19 14:06:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5996 states, 4025 states have (on average 1.2762732919254658) internal successors, (5137), 4143 states have internal predecessors, (5137), 1535 states have call successors, (1535), 428 states have call predecessors, (1535), 425 states have return successors, (1578), 1513 states have call predecessors, (1578), 1533 states have call successors, (1578) [2021-11-19 14:06:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 8250 transitions. [2021-11-19 14:06:07,456 INFO L78 Accepts]: Start accepts. Automaton has 5996 states and 8250 transitions. Word has length 257 [2021-11-19 14:06:07,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:07,457 INFO L470 AbstractCegarLoop]: Abstraction has 5996 states and 8250 transitions. [2021-11-19 14:06:07,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-19 14:06:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states and 8250 transitions. [2021-11-19 14:06:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 14:06:07,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:07,461 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:06:07,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:07,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:07,667 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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 31 more)] === [2021-11-19 14:06:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -989701497, now seen corresponding path program 1 times [2021-11-19 14:06:07,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:07,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408951699] [2021-11-19 14:06:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:07,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:07,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:07,671 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:07,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 14:06:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:10,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2672 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:06:10,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:06:11,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:06:12,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:12,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408951699] [2021-11-19 14:06:12,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408951699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:12,156 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:12,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:06:12,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955366347] [2021-11-19 14:06:12,156 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:12,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:06:12,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:12,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:06:12,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:06:12,158 INFO L87 Difference]: Start difference. First operand 5996 states and 8250 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:06:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:13,613 INFO L93 Difference]: Finished difference Result 11673 states and 16155 transitions. [2021-11-19 14:06:13,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:06:13,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 209 [2021-11-19 14:06:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:13,652 INFO L225 Difference]: With dead ends: 11673 [2021-11-19 14:06:13,652 INFO L226 Difference]: Without dead ends: 11513 [2021-11-19 14:06:13,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 413 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 14:06:13,659 INFO L933 BasicCegarLoop]: 5005 mSDtfsCounter, 3847 mSDsluCounter, 13727 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3847 SdHoareTripleChecker+Valid, 18732 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:13,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3847 Valid, 18732 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:06:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11513 states. [2021-11-19 14:06:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11513 to 11489. [2021-11-19 14:06:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11489 states, 7721 states have (on average 1.2805336096360576) internal successors, (9887), 7938 states have internal predecessors, (9887), 2939 states have call successors, (2939), 822 states have call predecessors, (2939), 818 states have return successors, (3126), 2903 states have call predecessors, (3126), 2935 states have call successors, (3126) [2021-11-19 14:06:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11489 states to 11489 states and 15952 transitions. [2021-11-19 14:06:15,481 INFO L78 Accepts]: Start accepts. Automaton has 11489 states and 15952 transitions. Word has length 209 [2021-11-19 14:06:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:15,481 INFO L470 AbstractCegarLoop]: Abstraction has 11489 states and 15952 transitions. [2021-11-19 14:06:15,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:06:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 11489 states and 15952 transitions. [2021-11-19 14:06:15,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-19 14:06:15,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:15,484 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-19 14:06:15,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:15,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:15,685 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:06:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1754494512, now seen corresponding path program 1 times [2021-11-19 14:06:15,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:15,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423567745] [2021-11-19 14:06:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:15,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:15,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:15,691 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:15,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-19 14:06:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:18,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:06:18,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:06:20,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2021-11-19 14:06:22,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:22,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423567745] [2021-11-19 14:06:22,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423567745] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:06:22,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:06:22,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [19] total 35 [2021-11-19 14:06:22,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290070241] [2021-11-19 14:06:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:22,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 14:06:22,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 14:06:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1106, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 14:06:22,693 INFO L87 Difference]: Start difference. First operand 11489 states and 15952 transitions. Second operand has 19 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 8 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2021-11-19 14:06:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:28,381 INFO L93 Difference]: Finished difference Result 22191 states and 30768 transitions. [2021-11-19 14:06:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 14:06:28,382 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 8 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 276 [2021-11-19 14:06:28,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:28,433 INFO L225 Difference]: With dead ends: 22191 [2021-11-19 14:06:28,433 INFO L226 Difference]: Without dead ends: 11442 [2021-11-19 14:06:28,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=330, Invalid=1926, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 14:06:28,468 INFO L933 BasicCegarLoop]: 4001 mSDtfsCounter, 117 mSDsluCounter, 67907 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 71908 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:28,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 71908 Invalid, 981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 14:06:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11442 states. [2021-11-19 14:06:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11442 to 11442. [2021-11-19 14:06:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11442 states, 7690 states have (on average 1.281404421326398) internal successors, (9854), 7906 states have internal predecessors, (9854), 2931 states have call successors, (2931), 814 states have call predecessors, (2931), 810 states have return successors, (3118), 2896 states have call predecessors, (3118), 2927 states have call successors, (3118) [2021-11-19 14:06:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11442 states to 11442 states and 15903 transitions. [2021-11-19 14:06:30,342 INFO L78 Accepts]: Start accepts. Automaton has 11442 states and 15903 transitions. Word has length 276 [2021-11-19 14:06:30,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:30,342 INFO L470 AbstractCegarLoop]: Abstraction has 11442 states and 15903 transitions. [2021-11-19 14:06:30,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 8 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2021-11-19 14:06:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 11442 states and 15903 transitions. [2021-11-19 14:06:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-19 14:06:30,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:30,345 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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 14:06:30,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-11-19 14:06:30,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:30,546 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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 31 more)] === [2021-11-19 14:06:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:30,548 INFO L85 PathProgramCache]: Analyzing trace with hash 76513379, now seen corresponding path program 1 times [2021-11-19 14:06:30,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:30,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619283255] [2021-11-19 14:06:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:30,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:30,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:30,554 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:30,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 14:06:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:34,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:06:34,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2021-11-19 14:06:34,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-19 14:06:35,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:35,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619283255] [2021-11-19 14:06:35,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619283255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:35,356 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:35,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 14:06:35,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923606956] [2021-11-19 14:06:35,357 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:35,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:06:35,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:06:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:06:35,359 INFO L87 Difference]: Start difference. First operand 11442 states and 15903 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:06:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:38,746 INFO L93 Difference]: Finished difference Result 26579 states and 37389 transitions. [2021-11-19 14:06:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:06:38,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 270 [2021-11-19 14:06:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:38,824 INFO L225 Difference]: With dead ends: 26579 [2021-11-19 14:06:38,824 INFO L226 Difference]: Without dead ends: 15221 [2021-11-19 14:06:38,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:06:38,866 INFO L933 BasicCegarLoop]: 4855 mSDtfsCounter, 1732 mSDsluCounter, 13430 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 18285 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:38,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1916 Valid, 18285 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:06:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15221 states. [2021-11-19 14:06:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15221 to 11448. [2021-11-19 14:06:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11448 states, 7696 states have (on average 1.2811850311850312) internal successors, (9860), 7912 states have internal predecessors, (9860), 2931 states have call successors, (2931), 814 states have call predecessors, (2931), 810 states have return successors, (3118), 2896 states have call predecessors, (3118), 2927 states have call successors, (3118) [2021-11-19 14:06:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11448 states to 11448 states and 15909 transitions. [2021-11-19 14:06:40,426 INFO L78 Accepts]: Start accepts. Automaton has 11448 states and 15909 transitions. Word has length 270 [2021-11-19 14:06:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:40,427 INFO L470 AbstractCegarLoop]: Abstraction has 11448 states and 15909 transitions. [2021-11-19 14:06:40,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:06:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 11448 states and 15909 transitions. [2021-11-19 14:06:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-19 14:06:40,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:40,429 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2021-11-19 14:06:40,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:40,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:40,630 INFO L402 AbstractCegarLoop]: === Iteration 37 === 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 31 more)] === [2021-11-19 14:06:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1149343254, now seen corresponding path program 1 times [2021-11-19 14:06:40,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:40,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796606539] [2021-11-19 14:06:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:40,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:40,634 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:40,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:06:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:43,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 14:06:43,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:06:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2021-11-19 14:06:44,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:06:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2021-11-19 14:06:46,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:06:46,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796606539] [2021-11-19 14:06:46,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796606539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:06:46,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:06:46,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 15 [2021-11-19 14:06:46,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880525633] [2021-11-19 14:06:46,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:06:46,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 14:06:46,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:06:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 14:06:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:06:46,487 INFO L87 Difference]: Start difference. First operand 11448 states and 15909 transitions. Second operand has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 12 states have internal predecessors, (129), 4 states have call successors, (45), 2 states have call predecessors, (45), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 14:06:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:06:52,981 INFO L93 Difference]: Finished difference Result 26355 states and 37101 transitions. [2021-11-19 14:06:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:06:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 12 states have internal predecessors, (129), 4 states have call successors, (45), 2 states have call predecessors, (45), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) Word has length 276 [2021-11-19 14:06:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:06:53,041 INFO L225 Difference]: With dead ends: 26355 [2021-11-19 14:06:53,041 INFO L226 Difference]: Without dead ends: 15096 [2021-11-19 14:06:53,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 535 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:06:53,078 INFO L933 BasicCegarLoop]: 4857 mSDtfsCounter, 3176 mSDsluCounter, 47291 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1095 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3357 SdHoareTripleChecker+Valid, 52148 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:06:53,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3357 Valid, 52148 Invalid, 1708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1095 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-19 14:06:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15096 states. [2021-11-19 14:06:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15096 to 11456. [2021-11-19 14:06:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11456 states, 7702 states have (on average 1.2809659828615945) internal successors, (9866), 7918 states have internal predecessors, (9866), 2932 states have call successors, (2932), 814 states have call predecessors, (2932), 811 states have return successors, (3125), 2898 states have call predecessors, (3125), 2928 states have call successors, (3125) [2021-11-19 14:06:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11456 states to 11456 states and 15923 transitions. [2021-11-19 14:06:55,119 INFO L78 Accepts]: Start accepts. Automaton has 11456 states and 15923 transitions. Word has length 276 [2021-11-19 14:06:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:06:55,119 INFO L470 AbstractCegarLoop]: Abstraction has 11456 states and 15923 transitions. [2021-11-19 14:06:55,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 12 states have internal predecessors, (129), 4 states have call successors, (45), 2 states have call predecessors, (45), 6 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-19 14:06:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 11456 states and 15923 transitions. [2021-11-19 14:06:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-19 14:06:55,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:06:55,123 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2021-11-19 14:06:55,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:06:55,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:06:55,324 INFO L402 AbstractCegarLoop]: === Iteration 38 === 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 31 more)] === [2021-11-19 14:06:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:06:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1704138200, now seen corresponding path program 1 times [2021-11-19 14:06:55,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:06:55,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928874513] [2021-11-19 14:06:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:06:55,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:06:55,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:06:55,330 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:06:55,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 14:06:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:06:59,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 14:06:59,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2021-11-19 14:07:01,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-11-19 14:07:06,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:06,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928874513] [2021-11-19 14:07:06,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928874513] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:06,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:07:06,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [16] total 27 [2021-11-19 14:07:06,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054539817] [2021-11-19 14:07:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:06,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 14:07:06,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:06,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 14:07:06,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:07:06,566 INFO L87 Difference]: Start difference. First operand 11456 states and 15923 transitions. Second operand has 17 states, 14 states have (on average 8.857142857142858) internal successors, (124), 13 states have internal predecessors, (124), 5 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 7 states have call predecessors, (34), 5 states have call successors, (34) [2021-11-19 14:07:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:15,164 INFO L93 Difference]: Finished difference Result 24266 states and 33923 transitions. [2021-11-19 14:07:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:07:15,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 8.857142857142858) internal successors, (124), 13 states have internal predecessors, (124), 5 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 7 states have call predecessors, (34), 5 states have call successors, (34) Word has length 292 [2021-11-19 14:07:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:15,210 INFO L225 Difference]: With dead ends: 24266 [2021-11-19 14:07:15,210 INFO L226 Difference]: Without dead ends: 13005 [2021-11-19 14:07:15,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 555 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:07:15,236 INFO L933 BasicCegarLoop]: 4474 mSDtfsCounter, 1828 mSDsluCounter, 51393 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 55867 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:15,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1830 Valid, 55867 Invalid, 2052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [727 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-19 14:07:15,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13005 states. [2021-11-19 14:07:16,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13005 to 11446. [2021-11-19 14:07:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11446 states, 7694 states have (on average 1.2811281518066024) internal successors, (9857), 7910 states have internal predecessors, (9857), 2931 states have call successors, (2931), 814 states have call predecessors, (2931), 810 states have return successors, (3118), 2896 states have call predecessors, (3118), 2927 states have call successors, (3118) [2021-11-19 14:07:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11446 states to 11446 states and 15906 transitions. [2021-11-19 14:07:16,991 INFO L78 Accepts]: Start accepts. Automaton has 11446 states and 15906 transitions. Word has length 292 [2021-11-19 14:07:16,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:16,992 INFO L470 AbstractCegarLoop]: Abstraction has 11446 states and 15906 transitions. [2021-11-19 14:07:16,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 8.857142857142858) internal successors, (124), 13 states have internal predecessors, (124), 5 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 7 states have call predecessors, (34), 5 states have call successors, (34) [2021-11-19 14:07:16,992 INFO L276 IsEmpty]: Start isEmpty. Operand 11446 states and 15906 transitions. [2021-11-19 14:07:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-11-19 14:07:16,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:16,996 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2021-11-19 14:07:17,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:17,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:17,200 INFO L402 AbstractCegarLoop]: === Iteration 39 === 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 31 more)] === [2021-11-19 14:07:17,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash -484566123, now seen corresponding path program 1 times [2021-11-19 14:07:17,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:17,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470179399] [2021-11-19 14:07:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:17,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:17,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:17,205 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:17,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-19 14:07:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:21,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 3220 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:07:21,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-11-19 14:07:22,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2021-11-19 14:07:24,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:24,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470179399] [2021-11-19 14:07:24,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470179399] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:24,599 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:24,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-19 14:07:24,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959094049] [2021-11-19 14:07:24,599 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:24,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 14:07:24,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:24,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 14:07:24,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:07:24,600 INFO L87 Difference]: Start difference. First operand 11446 states and 15906 transitions. Second operand has 27 states, 25 states have (on average 7.48) internal successors, (187), 25 states have internal predecessors, (187), 12 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (53), 12 states have call predecessors, (53), 12 states have call successors, (53) [2021-11-19 14:07:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:42,736 INFO L93 Difference]: Finished difference Result 28902 states and 40884 transitions. [2021-11-19 14:07:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-19 14:07:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 7.48) internal successors, (187), 25 states have internal predecessors, (187), 12 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (53), 12 states have call predecessors, (53), 12 states have call successors, (53) Word has length 357 [2021-11-19 14:07:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:42,786 INFO L225 Difference]: With dead ends: 28902 [2021-11-19 14:07:42,786 INFO L226 Difference]: Without dead ends: 17661 [2021-11-19 14:07:42,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=374, Invalid=1978, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 14:07:42,812 INFO L933 BasicCegarLoop]: 5021 mSDtfsCounter, 6691 mSDsluCounter, 86334 mSDsCounter, 0 mSdLazyCounter, 3625 mSolverCounterSat, 3717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 91355 SdHoareTripleChecker+Invalid, 7342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3717 IncrementalHoareTripleChecker+Valid, 3625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:42,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6824 Valid, 91355 Invalid, 7342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3717 Valid, 3625 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2021-11-19 14:07:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17661 states. [2021-11-19 14:07:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17661 to 11446. [2021-11-19 14:07:44,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11446 states, 7694 states have (on average 1.2811281518066024) internal successors, (9857), 7910 states have internal predecessors, (9857), 2931 states have call successors, (2931), 814 states have call predecessors, (2931), 810 states have return successors, (3118), 2896 states have call predecessors, (3118), 2927 states have call successors, (3118) [2021-11-19 14:07:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11446 states to 11446 states and 15906 transitions. [2021-11-19 14:07:44,437 INFO L78 Accepts]: Start accepts. Automaton has 11446 states and 15906 transitions. Word has length 357 [2021-11-19 14:07:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:44,437 INFO L470 AbstractCegarLoop]: Abstraction has 11446 states and 15906 transitions. [2021-11-19 14:07:44,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 7.48) internal successors, (187), 25 states have internal predecessors, (187), 12 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (53), 12 states have call predecessors, (53), 12 states have call successors, (53) [2021-11-19 14:07:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 11446 states and 15906 transitions. [2021-11-19 14:07:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-19 14:07:44,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:44,441 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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 14:07:44,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:07:44,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:44,644 INFO L402 AbstractCegarLoop]: === Iteration 40 === 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 31 more)] === [2021-11-19 14:07:44,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1280893436, now seen corresponding path program 1 times [2021-11-19 14:07:44,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:44,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731717843] [2021-11-19 14:07:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:44,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:44,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:44,650 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:44,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:07:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:48,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 3330 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:07:48,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-11-19 14:07:49,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-19 14:07:51,766 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:51,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731717843] [2021-11-19 14:07:51,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731717843] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:07:51,766 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:07:51,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 14:07:51,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892077948] [2021-11-19 14:07:51,767 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:51,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:07:51,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:51,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:07:51,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:07:51,768 INFO L87 Difference]: Start difference. First operand 11446 states and 15906 transitions. Second operand has 18 states, 18 states have (on average 11.61111111111111) internal successors, (209), 14 states have internal predecessors, (209), 4 states have call successors, (64), 2 states have call predecessors, (64), 6 states have return successors, (62), 8 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-19 14:07:54,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:07:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:58,798 INFO L93 Difference]: Finished difference Result 25909 states and 36361 transitions. [2021-11-19 14:07:58,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 14:07:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.61111111111111) internal successors, (209), 14 states have internal predecessors, (209), 4 states have call successors, (64), 2 states have call predecessors, (64), 6 states have return successors, (62), 8 states have call predecessors, (62), 4 states have call successors, (62) Word has length 377 [2021-11-19 14:07:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:58,833 INFO L225 Difference]: With dead ends: 25909 [2021-11-19 14:07:58,833 INFO L226 Difference]: Without dead ends: 14610 [2021-11-19 14:07:58,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:07:58,856 INFO L933 BasicCegarLoop]: 4813 mSDtfsCounter, 763 mSDsluCounter, 51923 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 56736 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:58,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 56736 Invalid, 231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-19 14:07:58,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14610 states. [2021-11-19 14:08:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14610 to 11457. [2021-11-19 14:08:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11457 states, 7702 states have (on average 1.280836146455466) internal successors, (9865), 7918 states have internal predecessors, (9865), 2932 states have call successors, (2932), 814 states have call predecessors, (2932), 812 states have return successors, (3123), 2899 states have call predecessors, (3123), 2928 states have call successors, (3123) [2021-11-19 14:08:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11457 states to 11457 states and 15920 transitions. [2021-11-19 14:08:00,460 INFO L78 Accepts]: Start accepts. Automaton has 11457 states and 15920 transitions. Word has length 377 [2021-11-19 14:08:00,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:00,460 INFO L470 AbstractCegarLoop]: Abstraction has 11457 states and 15920 transitions. [2021-11-19 14:08:00,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.61111111111111) internal successors, (209), 14 states have internal predecessors, (209), 4 states have call successors, (64), 2 states have call predecessors, (64), 6 states have return successors, (62), 8 states have call predecessors, (62), 4 states have call successors, (62) [2021-11-19 14:08:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11457 states and 15920 transitions. [2021-11-19 14:08:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-19 14:08:00,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:00,463 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:00,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:00,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:00,668 INFO L402 AbstractCegarLoop]: === Iteration 41 === 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 31 more)] === [2021-11-19 14:08:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash 269526750, now seen corresponding path program 1 times [2021-11-19 14:08:00,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:00,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186657375] [2021-11-19 14:08:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:00,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:00,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:00,677 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:00,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 14:08:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:04,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:08:04,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:08:07,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2021-11-19 14:08:08,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:08,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186657375] [2021-11-19 14:08:08,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186657375] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:08,473 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:08,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:08:08,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728467946] [2021-11-19 14:08:08,473 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:08,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:08:08,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:08:08,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:08:08,475 INFO L87 Difference]: Start difference. First operand 11457 states and 15920 transitions. Second operand has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 5 states have internal predecessors, (263), 2 states have call successors, (105), 4 states have call predecessors, (105), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:10,145 INFO L93 Difference]: Finished difference Result 12647 states and 17387 transitions. [2021-11-19 14:08:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:08:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 5 states have internal predecessors, (263), 2 states have call successors, (105), 4 states have call predecessors, (105), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 398 [2021-11-19 14:08:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:10,175 INFO L225 Difference]: With dead ends: 12647 [2021-11-19 14:08:10,175 INFO L226 Difference]: Without dead ends: 12645 [2021-11-19 14:08:10,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:08:10,181 INFO L933 BasicCegarLoop]: 4324 mSDtfsCounter, 3394 mSDsluCounter, 9378 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 13702 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:10,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3396 Valid, 13702 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:08:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12645 states. [2021-11-19 14:08:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12645 to 12601. [2021-11-19 14:08:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12601 states, 8446 states have (on average 1.274094245796827) internal successors, (10761), 8686 states have internal predecessors, (10761), 3172 states have call successors, (3172), 966 states have call predecessors, (3172), 972 states have return successors, (3391), 3143 states have call predecessors, (3391), 3168 states have call successors, (3391) [2021-11-19 14:08:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12601 states to 12601 states and 17324 transitions. [2021-11-19 14:08:11,855 INFO L78 Accepts]: Start accepts. Automaton has 12601 states and 17324 transitions. Word has length 398 [2021-11-19 14:08:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:11,856 INFO L470 AbstractCegarLoop]: Abstraction has 12601 states and 17324 transitions. [2021-11-19 14:08:11,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.57142857142857) internal successors, (263), 5 states have internal predecessors, (263), 2 states have call successors, (105), 4 states have call predecessors, (105), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 12601 states and 17324 transitions. [2021-11-19 14:08:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2021-11-19 14:08:11,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:11,860 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 3, 3, 3, 3, 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] [2021-11-19 14:08:11,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:12,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:12,064 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:08:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1236568973, now seen corresponding path program 1 times [2021-11-19 14:08:12,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:12,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606466699] [2021-11-19 14:08:12,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:12,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:12,068 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:12,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-19 14:08:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:15,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 3386 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:08:15,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2311 trivial. 0 not checked. [2021-11-19 14:08:16,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2311 trivial. 0 not checked. [2021-11-19 14:08:17,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:17,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606466699] [2021-11-19 14:08:17,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606466699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:17,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:17,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 14:08:17,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927082008] [2021-11-19 14:08:17,851 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:17,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:08:17,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:17,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:08:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:08:17,852 INFO L87 Difference]: Start difference. First operand 12601 states and 17324 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 4 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:08:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:21,374 INFO L93 Difference]: Finished difference Result 25497 states and 35107 transitions. [2021-11-19 14:08:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:08:21,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 4 states have call predecessors, (50), 2 states have call successors, (50) Word has length 452 [2021-11-19 14:08:21,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:21,436 INFO L225 Difference]: With dead ends: 25497 [2021-11-19 14:08:21,436 INFO L226 Difference]: Without dead ends: 14257 [2021-11-19 14:08:21,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:08:21,470 INFO L933 BasicCegarLoop]: 4232 mSDtfsCounter, 700 mSDsluCounter, 37430 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 41662 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:21,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 41662 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:08:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14257 states. [2021-11-19 14:08:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14257 to 12625. [2021-11-19 14:08:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12625 states, 8466 states have (on average 1.273446728088826) internal successors, (10781), 8706 states have internal predecessors, (10781), 3172 states have call successors, (3172), 966 states have call predecessors, (3172), 976 states have return successors, (3408), 3147 states have call predecessors, (3408), 3168 states have call successors, (3408) [2021-11-19 14:08:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12625 states to 12625 states and 17361 transitions. [2021-11-19 14:08:23,287 INFO L78 Accepts]: Start accepts. Automaton has 12625 states and 17361 transitions. Word has length 452 [2021-11-19 14:08:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:23,288 INFO L470 AbstractCegarLoop]: Abstraction has 12625 states and 17361 transitions. [2021-11-19 14:08:23,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 4 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:08:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12625 states and 17361 transitions. [2021-11-19 14:08:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-11-19 14:08:23,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:23,293 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 3, 3, 3, 3, 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] [2021-11-19 14:08:23,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:23,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:23,493 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:08:23,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1637907717, now seen corresponding path program 1 times [2021-11-19 14:08:23,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:23,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868361041] [2021-11-19 14:08:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:23,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:23,498 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:23,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:08:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:27,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:08:27,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2572 trivial. 0 not checked. [2021-11-19 14:08:30,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2572 trivial. 0 not checked. [2021-11-19 14:08:31,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:31,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868361041] [2021-11-19 14:08:31,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868361041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:31,498 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:31,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-19 14:08:31,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648115439] [2021-11-19 14:08:31,499 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:31,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:08:31,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:08:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:08:31,500 INFO L87 Difference]: Start difference. First operand 12625 states and 17361 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:33,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:08:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:43,540 INFO L93 Difference]: Finished difference Result 24821 states and 34058 transitions. [2021-11-19 14:08:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:08:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) Word has length 468 [2021-11-19 14:08:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:43,592 INFO L225 Difference]: With dead ends: 24821 [2021-11-19 14:08:43,593 INFO L226 Difference]: Without dead ends: 13557 [2021-11-19 14:08:43,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 928 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:08:43,626 INFO L933 BasicCegarLoop]: 4331 mSDtfsCounter, 4072 mSDsluCounter, 11423 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 106 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 15754 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:43,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4074 Valid, 15754 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1850 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-11-19 14:08:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13557 states. [2021-11-19 14:08:45,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13557 to 12615. [2021-11-19 14:08:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12615 states, 8457 states have (on average 1.272791770131252) internal successors, (10764), 8696 states have internal predecessors, (10764), 3172 states have call successors, (3172), 966 states have call predecessors, (3172), 976 states have return successors, (3408), 3147 states have call predecessors, (3408), 3168 states have call successors, (3408) [2021-11-19 14:08:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12615 states to 12615 states and 17344 transitions. [2021-11-19 14:08:45,456 INFO L78 Accepts]: Start accepts. Automaton has 12615 states and 17344 transitions. Word has length 468 [2021-11-19 14:08:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:45,457 INFO L470 AbstractCegarLoop]: Abstraction has 12615 states and 17344 transitions. [2021-11-19 14:08:45,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 6 states have internal predecessors, (151), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 12615 states and 17344 transitions. [2021-11-19 14:08:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-11-19 14:08:45,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:45,462 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 3, 3, 3, 3, 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] [2021-11-19 14:08:45,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:45,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:45,662 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:08:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 764843133, now seen corresponding path program 1 times [2021-11-19 14:08:45,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:45,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223831094] [2021-11-19 14:08:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:45,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:45,669 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:45,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 14:08:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:08:49,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:08:49,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:08:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2572 trivial. 0 not checked. [2021-11-19 14:08:52,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:08:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2572 trivial. 0 not checked. [2021-11-19 14:08:53,620 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:08:53,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223831094] [2021-11-19 14:08:53,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223831094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:08:53,620 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:08:53,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:08:53,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063177620] [2021-11-19 14:08:53,621 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:08:53,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:08:53,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:08:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:08:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:08:53,622 INFO L87 Difference]: Start difference. First operand 12615 states and 17344 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:08:56,148 INFO L93 Difference]: Finished difference Result 13489 states and 18650 transitions. [2021-11-19 14:08:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:08:56,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 469 [2021-11-19 14:08:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:08:56,210 INFO L225 Difference]: With dead ends: 13489 [2021-11-19 14:08:56,211 INFO L226 Difference]: Without dead ends: 13487 [2021-11-19 14:08:56,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 933 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 14:08:56,220 INFO L933 BasicCegarLoop]: 4271 mSDtfsCounter, 4306 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4306 SdHoareTripleChecker+Valid, 8325 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:08:56,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4306 Valid, 8325 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:08:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13487 states. [2021-11-19 14:08:58,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13487 to 12613. [2021-11-19 14:08:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12613 states, 8456 states have (on average 1.2723509933774835) internal successors, (10759), 8694 states have internal predecessors, (10759), 3172 states have call successors, (3172), 966 states have call predecessors, (3172), 976 states have return successors, (3408), 3147 states have call predecessors, (3408), 3168 states have call successors, (3408) [2021-11-19 14:08:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12613 states to 12613 states and 17339 transitions. [2021-11-19 14:08:58,166 INFO L78 Accepts]: Start accepts. Automaton has 12613 states and 17339 transitions. Word has length 469 [2021-11-19 14:08:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:08:58,166 INFO L470 AbstractCegarLoop]: Abstraction has 12613 states and 17339 transitions. [2021-11-19 14:08:58,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:08:58,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12613 states and 17339 transitions. [2021-11-19 14:08:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-19 14:08:58,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:08:58,170 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:08:58,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:08:58,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:08:58,371 INFO L402 AbstractCegarLoop]: === Iteration 45 === 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 31 more)] === [2021-11-19 14:08:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:08:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 728100022, now seen corresponding path program 1 times [2021-11-19 14:08:58,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:08:58,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747884974] [2021-11-19 14:08:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:08:58,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:08:58,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:08:58,375 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:08:58,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 14:09:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:02,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:09:02,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2021-11-19 14:09:03,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2021-11-19 14:09:04,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:04,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747884974] [2021-11-19 14:09:04,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747884974] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:04,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:04,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 14:09:04,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523741455] [2021-11-19 14:09:04,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:04,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:09:04,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:04,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:09:04,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:09:04,159 INFO L87 Difference]: Start difference. First operand 12613 states and 17339 transitions. Second operand has 7 states, 7 states have (on average 28.428571428571427) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:09:06,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:09:08,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:08,198 INFO L93 Difference]: Finished difference Result 12625 states and 17349 transitions. [2021-11-19 14:09:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:09:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.428571428571427) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 425 [2021-11-19 14:09:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:08,233 INFO L225 Difference]: With dead ends: 12625 [2021-11-19 14:09:08,233 INFO L226 Difference]: Without dead ends: 12623 [2021-11-19 14:09:08,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 843 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 14:09:08,238 INFO L933 BasicCegarLoop]: 4158 mSDtfsCounter, 719 mSDsluCounter, 16125 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 20283 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:08,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 20283 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:09:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12623 states. [2021-11-19 14:09:09,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12623 to 12613. [2021-11-19 14:09:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12613 states, 8456 states have (on average 1.2714049195837276) internal successors, (10751), 8694 states have internal predecessors, (10751), 3172 states have call successors, (3172), 966 states have call predecessors, (3172), 976 states have return successors, (3408), 3147 states have call predecessors, (3408), 3168 states have call successors, (3408) [2021-11-19 14:09:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12613 states to 12613 states and 17331 transitions. [2021-11-19 14:09:10,044 INFO L78 Accepts]: Start accepts. Automaton has 12613 states and 17331 transitions. Word has length 425 [2021-11-19 14:09:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:10,044 INFO L470 AbstractCegarLoop]: Abstraction has 12613 states and 17331 transitions. [2021-11-19 14:09:10,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.428571428571427) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-19 14:09:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 12613 states and 17331 transitions. [2021-11-19 14:09:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-19 14:09:10,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:10,050 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:10,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-11-19 14:09:10,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:10,264 INFO L402 AbstractCegarLoop]: === Iteration 46 === 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 31 more)] === [2021-11-19 14:09:10,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:10,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1690672400, now seen corresponding path program 1 times [2021-11-19 14:09:10,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:10,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733614515] [2021-11-19 14:09:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:10,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:10,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:10,270 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:10,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 14:09:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:14,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 3440 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:09:14,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2021-11-19 14:09:15,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 2511 trivial. 0 not checked. [2021-11-19 14:09:17,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:17,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733614515] [2021-11-19 14:09:17,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733614515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:17,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:17,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 23 [2021-11-19 14:09:17,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783863946] [2021-11-19 14:09:17,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:17,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 14:09:17,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:17,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 14:09:17,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:09:17,327 INFO L87 Difference]: Start difference. First operand 12613 states and 17331 transitions. Second operand has 23 states, 21 states have (on average 6.809523809523809) internal successors, (143), 19 states have internal predecessors, (143), 8 states have call successors, (59), 2 states have call predecessors, (59), 7 states have return successors, (57), 10 states have call predecessors, (57), 8 states have call successors, (57) [2021-11-19 14:09:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:23,699 INFO L93 Difference]: Finished difference Result 24787 states and 34005 transitions. [2021-11-19 14:09:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-19 14:09:23,699 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 6.809523809523809) internal successors, (143), 19 states have internal predecessors, (143), 8 states have call successors, (59), 2 states have call predecessors, (59), 7 states have return successors, (57), 10 states have call predecessors, (57), 8 states have call successors, (57) Word has length 480 [2021-11-19 14:09:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:23,738 INFO L225 Difference]: With dead ends: 24787 [2021-11-19 14:09:23,738 INFO L226 Difference]: Without dead ends: 13527 [2021-11-19 14:09:23,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 939 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=189, Invalid=1293, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 14:09:23,760 INFO L933 BasicCegarLoop]: 4228 mSDtfsCounter, 231 mSDsluCounter, 62861 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 67089 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:23,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 67089 Invalid, 1138 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [201 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:09:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13527 states. [2021-11-19 14:09:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13527 to 12641. [2021-11-19 14:09:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12641 states, 8476 states have (on average 1.2707645115620576) internal successors, (10771), 8714 states have internal predecessors, (10771), 3180 states have call successors, (3180), 966 states have call predecessors, (3180), 976 states have return successors, (3416), 3155 states have call predecessors, (3416), 3176 states have call successors, (3416) [2021-11-19 14:09:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12641 states to 12641 states and 17367 transitions. [2021-11-19 14:09:25,594 INFO L78 Accepts]: Start accepts. Automaton has 12641 states and 17367 transitions. Word has length 480 [2021-11-19 14:09:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:25,595 INFO L470 AbstractCegarLoop]: Abstraction has 12641 states and 17367 transitions. [2021-11-19 14:09:25,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 6.809523809523809) internal successors, (143), 19 states have internal predecessors, (143), 8 states have call successors, (59), 2 states have call predecessors, (59), 7 states have return successors, (57), 10 states have call predecessors, (57), 8 states have call successors, (57) [2021-11-19 14:09:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 12641 states and 17367 transitions. [2021-11-19 14:09:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2021-11-19 14:09:25,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:25,600 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 7, 7, 3, 3, 3, 3, 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 14:09:25,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:25,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:25,800 INFO L402 AbstractCegarLoop]: === Iteration 47 === 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 31 more)] === [2021-11-19 14:09:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1639865096, now seen corresponding path program 1 times [2021-11-19 14:09:25,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:25,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996195032] [2021-11-19 14:09:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:25,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:25,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:25,805 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:25,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 14:09:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:29,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 3503 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:09:29,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2599 trivial. 0 not checked. [2021-11-19 14:09:30,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2599 trivial. 0 not checked. [2021-11-19 14:09:32,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:32,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996195032] [2021-11-19 14:09:32,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996195032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:32,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:32,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 14:09:32,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561538535] [2021-11-19 14:09:32,148 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:32,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:09:32,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:09:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:09:32,150 INFO L87 Difference]: Start difference. First operand 12641 states and 17367 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-19 14:09:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:35,130 INFO L93 Difference]: Finished difference Result 24416 states and 33459 transitions. [2021-11-19 14:09:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:09:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) Word has length 498 [2021-11-19 14:09:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:35,170 INFO L225 Difference]: With dead ends: 24416 [2021-11-19 14:09:35,171 INFO L226 Difference]: Without dead ends: 13136 [2021-11-19 14:09:35,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 985 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:09:35,200 INFO L933 BasicCegarLoop]: 4160 mSDtfsCounter, 87 mSDsluCounter, 37207 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 41367 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:35,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 41367 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:09:35,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13136 states. [2021-11-19 14:09:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13136 to 12662. [2021-11-19 14:09:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12662 states, 8494 states have (on average 1.2701907228631975) internal successors, (10789), 8731 states have internal predecessors, (10789), 3180 states have call successors, (3180), 966 states have call predecessors, (3180), 979 states have return successors, (3422), 3159 states have call predecessors, (3422), 3176 states have call successors, (3422) [2021-11-19 14:09:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12662 states to 12662 states and 17391 transitions. [2021-11-19 14:09:37,176 INFO L78 Accepts]: Start accepts. Automaton has 12662 states and 17391 transitions. Word has length 498 [2021-11-19 14:09:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:37,177 INFO L470 AbstractCegarLoop]: Abstraction has 12662 states and 17391 transitions. [2021-11-19 14:09:37,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-19 14:09:37,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12662 states and 17391 transitions. [2021-11-19 14:09:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-19 14:09:37,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:37,184 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 7, 7, 3, 3, 3, 3, 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 14:09:37,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:37,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:37,408 INFO L402 AbstractCegarLoop]: === Iteration 48 === 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 31 more)] === [2021-11-19 14:09:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2066866000, now seen corresponding path program 1 times [2021-11-19 14:09:37,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:37,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534740285] [2021-11-19 14:09:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:37,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:37,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:37,414 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:37,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 14:09:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:41,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 3547 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:09:41,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2879 trivial. 0 not checked. [2021-11-19 14:09:44,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2879 trivial. 0 not checked. [2021-11-19 14:09:46,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:46,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534740285] [2021-11-19 14:09:46,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534740285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:46,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:46,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:09:46,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389399228] [2021-11-19 14:09:46,235 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:46,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:09:46,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:09:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:09:46,237 INFO L87 Difference]: Start difference. First operand 12662 states and 17391 transitions. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (117), 4 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-11-19 14:09:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:48,149 INFO L93 Difference]: Finished difference Result 12714 states and 17432 transitions. [2021-11-19 14:09:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:09:48,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (117), 4 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 519 [2021-11-19 14:09:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:48,186 INFO L225 Difference]: With dead ends: 12714 [2021-11-19 14:09:48,186 INFO L226 Difference]: Without dead ends: 12712 [2021-11-19 14:09:48,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1039 GetRequests, 1031 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 14:09:48,191 INFO L933 BasicCegarLoop]: 4029 mSDtfsCounter, 3753 mSDsluCounter, 12116 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 16145 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:48,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3755 Valid, 16145 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:09:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12712 states. [2021-11-19 14:09:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12712 to 12710. [2021-11-19 14:09:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12710 states, 8529 states have (on average 1.269081955680619) internal successors, (10824), 8766 states have internal predecessors, (10824), 3180 states have call successors, (3180), 979 states have call predecessors, (3180), 992 states have return successors, (3422), 3159 states have call predecessors, (3422), 3176 states have call successors, (3422) [2021-11-19 14:09:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12710 states to 12710 states and 17426 transitions. [2021-11-19 14:09:50,106 INFO L78 Accepts]: Start accepts. Automaton has 12710 states and 17426 transitions. Word has length 519 [2021-11-19 14:09:50,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:50,107 INFO L470 AbstractCegarLoop]: Abstraction has 12710 states and 17426 transitions. [2021-11-19 14:09:50,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (117), 4 states have call predecessors, (117), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2021-11-19 14:09:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 12710 states and 17426 transitions. [2021-11-19 14:09:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-19 14:09:50,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:50,113 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:50,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:50,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:50,322 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 31 more)] === [2021-11-19 14:09:50,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:50,323 INFO L85 PathProgramCache]: Analyzing trace with hash -139905206, now seen corresponding path program 1 times [2021-11-19 14:09:50,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:50,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924838253] [2021-11-19 14:09:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:50,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:50,328 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:50,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-19 14:09:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:55,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 3625 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 14:09:55,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2021-11-19 14:09:58,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2021-11-19 14:09:59,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:59,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924838253] [2021-11-19 14:09:59,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924838253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:59,736 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:09:59,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:09:59,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413113457] [2021-11-19 14:09:59,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:59,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:09:59,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:09:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:09:59,739 INFO L87 Difference]: Start difference. First operand 12710 states and 17426 transitions. Second operand has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (122), 4 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-19 14:10:01,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:01,911 INFO L93 Difference]: Finished difference Result 14624 states and 19603 transitions. [2021-11-19 14:10:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:10:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (122), 4 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 480 [2021-11-19 14:10:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:01,946 INFO L225 Difference]: With dead ends: 14624 [2021-11-19 14:10:01,946 INFO L226 Difference]: Without dead ends: 14622 [2021-11-19 14:10:01,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 953 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 14:10:01,950 INFO L933 BasicCegarLoop]: 4239 mSDtfsCounter, 3651 mSDsluCounter, 17301 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3654 SdHoareTripleChecker+Valid, 21540 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:01,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3654 Valid, 21540 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:10:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2021-11-19 14:10:03,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 14614. [2021-11-19 14:10:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14614 states, 9709 states have (on average 1.2524461839530332) internal successors, (12160), 9978 states have internal predecessors, (12160), 3576 states have call successors, (3576), 1307 states have call predecessors, (3576), 1320 states have return successors, (3858), 3539 states have call predecessors, (3858), 3572 states have call successors, (3858) [2021-11-19 14:10:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14614 states to 14614 states and 19594 transitions. [2021-11-19 14:10:04,001 INFO L78 Accepts]: Start accepts. Automaton has 14614 states and 19594 transitions. Word has length 480 [2021-11-19 14:10:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:04,002 INFO L470 AbstractCegarLoop]: Abstraction has 14614 states and 19594 transitions. [2021-11-19 14:10:04,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (122), 4 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2021-11-19 14:10:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 14614 states and 19594 transitions. [2021-11-19 14:10:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2021-11-19 14:10:04,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:04,008 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 7, 7, 3, 3, 3, 3, 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 14:10:04,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:04,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:04,208 INFO L402 AbstractCegarLoop]: === Iteration 50 === 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 31 more)] === [2021-11-19 14:10:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:04,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1938623644, now seen corresponding path program 1 times [2021-11-19 14:10:04,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:04,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932312522] [2021-11-19 14:10:04,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:04,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:04,213 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:04,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 14:10:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:08,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 3598 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:10:08,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2879 trivial. 0 not checked. [2021-11-19 14:10:08,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2879 trivial. 0 not checked. [2021-11-19 14:10:09,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:09,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932312522] [2021-11-19 14:10:09,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932312522] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:09,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:09,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:10:09,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533441621] [2021-11-19 14:10:09,995 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:09,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:10:09,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:10:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:10:09,997 INFO L87 Difference]: Start difference. First operand 14614 states and 19594 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 3 states have call successors, (64), 5 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 1 states have call successors, (60) [2021-11-19 14:10:12,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:14,355 INFO L93 Difference]: Finished difference Result 14622 states and 19598 transitions. [2021-11-19 14:10:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:10:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 3 states have call successors, (64), 5 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 1 states have call successors, (60) Word has length 534 [2021-11-19 14:10:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:14,395 INFO L225 Difference]: With dead ends: 14622 [2021-11-19 14:10:14,395 INFO L226 Difference]: Without dead ends: 14620 [2021-11-19 14:10:14,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1060 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 14:10:14,402 INFO L933 BasicCegarLoop]: 4164 mSDtfsCounter, 348 mSDsluCounter, 24591 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 28755 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:14,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 28755 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:10:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14620 states. [2021-11-19 14:10:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14620 to 14614. [2021-11-19 14:10:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14614 states, 9709 states have (on average 1.2520341950767329) internal successors, (12156), 9978 states have internal predecessors, (12156), 3576 states have call successors, (3576), 1307 states have call predecessors, (3576), 1320 states have return successors, (3858), 3539 states have call predecessors, (3858), 3572 states have call successors, (3858) [2021-11-19 14:10:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14614 states to 14614 states and 19590 transitions. [2021-11-19 14:10:16,595 INFO L78 Accepts]: Start accepts. Automaton has 14614 states and 19590 transitions. Word has length 534 [2021-11-19 14:10:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:16,595 INFO L470 AbstractCegarLoop]: Abstraction has 14614 states and 19590 transitions. [2021-11-19 14:10:16,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 6 states have internal predecessors, (161), 3 states have call successors, (64), 5 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 1 states have call successors, (60) [2021-11-19 14:10:16,596 INFO L276 IsEmpty]: Start isEmpty. Operand 14614 states and 19590 transitions. [2021-11-19 14:10:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-11-19 14:10:16,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:16,602 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:16,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:16,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:16,802 INFO L402 AbstractCegarLoop]: === Iteration 51 === 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 31 more)] === [2021-11-19 14:10:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash 36028486, now seen corresponding path program 1 times [2021-11-19 14:10:16,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:16,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201928109] [2021-11-19 14:10:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:16,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:16,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:16,807 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:16,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2021-11-19 14:10:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:20,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 3614 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:10:20,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2021-11-19 14:10:21,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2021-11-19 14:10:22,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:22,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201928109] [2021-11-19 14:10:22,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201928109] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:22,502 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:22,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 14:10:22,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003802753] [2021-11-19 14:10:22,503 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:22,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:10:22,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:10:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:10:22,504 INFO L87 Difference]: Start difference. First operand 14614 states and 19590 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:10:24,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:26,725 INFO L93 Difference]: Finished difference Result 14616 states and 19591 transitions. [2021-11-19 14:10:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:10:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 545 [2021-11-19 14:10:26,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:26,765 INFO L225 Difference]: With dead ends: 14616 [2021-11-19 14:10:26,765 INFO L226 Difference]: Without dead ends: 14614 [2021-11-19 14:10:26,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1090 GetRequests, 1083 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:10:26,772 INFO L933 BasicCegarLoop]: 4042 mSDtfsCounter, 32 mSDsluCounter, 12079 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 16121 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:26,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 16121 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:10:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14614 states. [2021-11-19 14:10:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14614 to 14614. [2021-11-19 14:10:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14614 states, 9709 states have (on average 1.2516222062004325) internal successors, (12152), 9978 states have internal predecessors, (12152), 3576 states have call successors, (3576), 1307 states have call predecessors, (3576), 1320 states have return successors, (3858), 3539 states have call predecessors, (3858), 3572 states have call successors, (3858) [2021-11-19 14:10:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14614 states to 14614 states and 19586 transitions. [2021-11-19 14:10:28,974 INFO L78 Accepts]: Start accepts. Automaton has 14614 states and 19586 transitions. Word has length 545 [2021-11-19 14:10:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:28,975 INFO L470 AbstractCegarLoop]: Abstraction has 14614 states and 19586 transitions. [2021-11-19 14:10:28,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:10:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 14614 states and 19586 transitions. [2021-11-19 14:10:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-11-19 14:10:28,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:28,982 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 13, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:29,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:29,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:29,183 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 31 more)] === [2021-11-19 14:10:29,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1822417214, now seen corresponding path program 1 times [2021-11-19 14:10:29,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:29,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317241095] [2021-11-19 14:10:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:29,186 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:29,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:29,187 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:29,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 14:10:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:33,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:10:33,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3248 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 3075 trivial. 0 not checked. [2021-11-19 14:10:34,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3248 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 3141 trivial. 0 not checked. [2021-11-19 14:10:36,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:36,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317241095] [2021-11-19 14:10:36,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317241095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:36,836 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:36,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 25 [2021-11-19 14:10:36,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65006072] [2021-11-19 14:10:36,836 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:36,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:10:36,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:36,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:10:36,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:10:36,838 INFO L87 Difference]: Start difference. First operand 14614 states and 19586 transitions. Second operand has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 21 states have internal predecessors, (186), 10 states have call successors, (76), 2 states have call predecessors, (76), 7 states have return successors, (73), 12 states have call predecessors, (73), 10 states have call successors, (73) [2021-11-19 14:10:46,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:46,639 INFO L93 Difference]: Finished difference Result 29094 states and 38992 transitions. [2021-11-19 14:10:46,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-19 14:10:46,640 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 21 states have internal predecessors, (186), 10 states have call successors, (76), 2 states have call predecessors, (76), 7 states have return successors, (73), 12 states have call predecessors, (73), 10 states have call successors, (73) Word has length 570 [2021-11-19 14:10:46,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:46,683 INFO L225 Difference]: With dead ends: 29094 [2021-11-19 14:10:46,684 INFO L226 Difference]: Without dead ends: 15876 [2021-11-19 14:10:46,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1119 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=453, Invalid=2969, Unknown=0, NotChecked=0, Total=3422 [2021-11-19 14:10:46,713 INFO L933 BasicCegarLoop]: 4320 mSDtfsCounter, 317 mSDsluCounter, 68564 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 72884 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:46,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 72884 Invalid, 1952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [599 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-19 14:10:46,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15876 states. [2021-11-19 14:10:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15876 to 14614. [2021-11-19 14:10:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14614 states, 9709 states have (on average 1.2516222062004325) internal successors, (12152), 9978 states have internal predecessors, (12152), 3576 states have call successors, (3576), 1307 states have call predecessors, (3576), 1320 states have return successors, (3858), 3539 states have call predecessors, (3858), 3572 states have call successors, (3858) [2021-11-19 14:10:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14614 states to 14614 states and 19586 transitions. [2021-11-19 14:10:48,881 INFO L78 Accepts]: Start accepts. Automaton has 14614 states and 19586 transitions. Word has length 570 [2021-11-19 14:10:48,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:48,882 INFO L470 AbstractCegarLoop]: Abstraction has 14614 states and 19586 transitions. [2021-11-19 14:10:48,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 8.08695652173913) internal successors, (186), 21 states have internal predecessors, (186), 10 states have call successors, (76), 2 states have call predecessors, (76), 7 states have return successors, (73), 12 states have call predecessors, (73), 10 states have call successors, (73) [2021-11-19 14:10:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand 14614 states and 19586 transitions. [2021-11-19 14:10:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2021-11-19 14:10:48,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:48,893 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:10:48,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:10:49,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:49,094 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 31 more)] === [2021-11-19 14:10:49,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:49,094 INFO L85 PathProgramCache]: Analyzing trace with hash -754398996, now seen corresponding path program 1 times [2021-11-19 14:10:49,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:49,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671416402] [2021-11-19 14:10:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:49,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:49,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:49,098 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:49,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 14:10:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:53,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 3654 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:10:53,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:10:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3139 trivial. 0 not checked. [2021-11-19 14:10:56,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3139 trivial. 0 not checked. [2021-11-19 14:10:58,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:58,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671416402] [2021-11-19 14:10:58,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671416402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:10:58,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:10:58,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:10:58,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866698326] [2021-11-19 14:10:58,177 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:58,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:10:58,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:58,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:10:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:10:58,179 INFO L87 Difference]: Start difference. First operand 14614 states and 19586 transitions. Second operand has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (135), 4 states have call predecessors, (135), 2 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2021-11-19 14:11:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:01,264 INFO L93 Difference]: Finished difference Result 24953 states and 33158 transitions. [2021-11-19 14:11:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:11:01,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (135), 4 states have call predecessors, (135), 2 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) Word has length 566 [2021-11-19 14:11:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:01,338 INFO L225 Difference]: With dead ends: 24953 [2021-11-19 14:11:01,339 INFO L226 Difference]: Without dead ends: 24951 [2021-11-19 14:11:01,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1133 GetRequests, 1125 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 14:11:01,349 INFO L933 BasicCegarLoop]: 4482 mSDtfsCounter, 3294 mSDsluCounter, 20641 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 25123 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:01,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3297 Valid, 25123 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:11:01,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24951 states. [2021-11-19 14:11:04,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24951 to 24913. [2021-11-19 14:11:04,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24913 states, 16423 states have (on average 1.2491018693295988) internal successors, (20514), 16892 states have internal predecessors, (20514), 6060 states have call successors, (6060), 2408 states have call predecessors, (6060), 2421 states have return successors, (6538), 5991 states have call predecessors, (6538), 6056 states have call successors, (6538) [2021-11-19 14:11:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24913 states to 24913 states and 33112 transitions. [2021-11-19 14:11:04,751 INFO L78 Accepts]: Start accepts. Automaton has 24913 states and 33112 transitions. Word has length 566 [2021-11-19 14:11:04,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:04,751 INFO L470 AbstractCegarLoop]: Abstraction has 24913 states and 33112 transitions. [2021-11-19 14:11:04,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 5 states have internal predecessors, (232), 2 states have call successors, (135), 4 states have call predecessors, (135), 2 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2021-11-19 14:11:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 24913 states and 33112 transitions. [2021-11-19 14:11:04,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-11-19 14:11:04,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:04,759 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 11, 11, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:11:04,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:11:04,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:11:04,960 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:11:04,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:04,961 INFO L85 PathProgramCache]: Analyzing trace with hash 55189939, now seen corresponding path program 1 times [2021-11-19 14:11:04,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:04,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011982065] [2021-11-19 14:11:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:04,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:04,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:04,965 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:04,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2021-11-19 14:11:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:09,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 3705 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:11:09,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2021-11-19 14:11:10,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2021-11-19 14:11:11,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:11,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011982065] [2021-11-19 14:11:11,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011982065] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:11:11,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:11:11,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 14:11:11,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835010018] [2021-11-19 14:11:11,618 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:11,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:11:11,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:11:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:11:11,619 INFO L87 Difference]: Start difference. First operand 24913 states and 33112 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2021-11-19 14:11:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:15,190 INFO L93 Difference]: Finished difference Result 49613 states and 66327 transitions. [2021-11-19 14:11:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:11:15,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 574 [2021-11-19 14:11:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:15,286 INFO L225 Difference]: With dead ends: 49613 [2021-11-19 14:11:15,286 INFO L226 Difference]: Without dead ends: 24985 [2021-11-19 14:11:15,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1149 GetRequests, 1143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:11:15,349 INFO L933 BasicCegarLoop]: 4024 mSDtfsCounter, 8 mSDsluCounter, 12063 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16087 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:15,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 16087 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:11:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24985 states. [2021-11-19 14:11:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24985 to 24953. [2021-11-19 14:11:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24953 states, 16463 states have (on average 1.2484966288039847) internal successors, (20554), 16932 states have internal predecessors, (20554), 6060 states have call successors, (6060), 2408 states have call predecessors, (6060), 2421 states have return successors, (6538), 5991 states have call predecessors, (6538), 6056 states have call successors, (6538) [2021-11-19 14:11:18,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24953 states to 24953 states and 33152 transitions. [2021-11-19 14:11:18,938 INFO L78 Accepts]: Start accepts. Automaton has 24953 states and 33152 transitions. Word has length 574 [2021-11-19 14:11:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:18,939 INFO L470 AbstractCegarLoop]: Abstraction has 24953 states and 33152 transitions. [2021-11-19 14:11:18,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2021-11-19 14:11:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24953 states and 33152 transitions. [2021-11-19 14:11:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-11-19 14:11:18,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:18,951 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 11, 11, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:11:19,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2021-11-19 14:11:19,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:11:19,159 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:11:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:19,159 INFO L85 PathProgramCache]: Analyzing trace with hash -624868431, now seen corresponding path program 1 times [2021-11-19 14:11:19,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:19,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840179798] [2021-11-19 14:11:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:19,163 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:19,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:19,164 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:19,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc78a19-9bad-4f6f-9a06-ea4a94175c87/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 14:12:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:10,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 3705 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:12:10,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:11,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:12:11,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:12:11,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:12:11,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:12:11,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:12:11,311 INFO L354 Elim1Store]: treesize reduction 190, result has 12.8 percent of original size [2021-11-19 14:12:11,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-19 14:12:11,705 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-19 14:12:11,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 23 [2021-11-19 14:12:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2021-11-19 14:12:12,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1942 trivial. 0 not checked. [2021-11-19 14:12:14,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:14,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840179798] [2021-11-19 14:12:14,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840179798] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:12:14,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:12:14,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-19 14:12:14,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429399464] [2021-11-19 14:12:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:14,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:12:14,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:12:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:12:14,518 INFO L87 Difference]: Start difference. First operand 24953 states and 33152 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-19 14:12:16,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:18,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:24,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:26,639 WARN L515 Checker$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 14:12:30,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:34,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:58,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:01,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []