./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--net--ethernet--amd--amd8111e.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF --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 a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:51:19,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:51:19,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:51:19,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:51:19,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:51:19,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:51:19,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:51:20,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:51:20,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:51:20,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:51:20,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:51:20,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:51:20,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:51:20,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:51:20,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:51:20,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:51:20,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:51:20,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:51:20,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:51:20,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:51:20,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:51:20,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:51:20,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:51:20,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:51:20,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:51:20,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:51:20,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:51:20,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:51:20,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:51:20,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:51:20,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:51:20,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:51:20,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:51:20,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:51:20,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:51:20,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:51:20,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:51:20,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:51:20,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:51:20,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:51:20,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:51:20,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:51:20,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:51:20,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:51:20,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:51:20,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:51:20,147 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:51:20,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:51:20,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:51:20,148 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:51:20,155 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:51:20,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:51:20,157 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:51:20,157 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:51:20,157 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:51:20,158 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:51:20,158 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:51:20,158 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:51:20,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:51:20,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:51:20,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:51:20,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:51:20,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:51:20,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:51:20,161 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:51:20,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:51:20,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:51:20,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:51:20,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:51:20,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:51:20,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:20,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:51:20,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:51:20,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:51:20,165 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:51:20,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:51:20,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:51:20,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:51:20,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:51:20,167 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_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 [2021-11-12 22:51:20,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:51:20,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:51:20,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:51:20,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:51:20,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:51:20,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-12 22:51:20,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/8c202d5d3/9d292fcbc1df42efb46a5261b7059532/FLAG26aed3c9f [2021-11-12 22:51:21,788 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:51:21,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-12 22:51:21,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/8c202d5d3/9d292fcbc1df42efb46a5261b7059532/FLAG26aed3c9f [2021-11-12 22:51:21,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/8c202d5d3/9d292fcbc1df42efb46a5261b7059532 [2021-11-12 22:51:21,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:51:21,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:51:21,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:21,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:51:22,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:51:22,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:21" (1/1) ... [2021-11-12 22:51:22,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324d05db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:22, skipping insertion in model container [2021-11-12 22:51:22,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:21" (1/1) ... [2021-11-12 22:51:22,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:51:22,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:24,943 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:25,122 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:25,124 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:51:27,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-12 22:51:27,338 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-12 22:51:27,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-12 22:51:27,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-12 22:51:27,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-12 22:51:27,341 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-12 22:51:27,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-12 22:51:27,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-12 22:51:27,343 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-12 22:51:27,344 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-12 22:51:27,344 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-12 22:51:27,345 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-12 22:51:27,345 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-12 22:51:27,346 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-12 22:51:27,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-12 22:51:27,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-12 22:51:27,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-12 22:51:27,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-12 22:51:27,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-12 22:51:27,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-12 22:51:27,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-12 22:51:27,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-12 22:51:27,352 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-12 22:51:27,352 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-12 22:51:27,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-12 22:51:27,354 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-12 22:51:27,354 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-12 22:51:27,355 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-12 22:51:27,355 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-12 22:51:27,356 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-12 22:51:27,357 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-12 22:51:27,357 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-12 22:51:27,358 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-12 22:51:27,359 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-12 22:51:27,359 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-12 22:51:27,360 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-12 22:51:27,360 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-12 22:51:27,361 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-12 22:51:27,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-12 22:51:27,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-12 22:51:27,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-12 22:51:27,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-12 22:51:27,364 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-12 22:51:27,365 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-12 22:51:27,365 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-12 22:51:27,366 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-12 22:51:27,366 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-12 22:51:27,367 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-12 22:51:27,368 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-12 22:51:27,368 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-12 22:51:27,369 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-12 22:51:27,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-12 22:51:27,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-12 22:51:27,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-12 22:51:27,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-12 22:51:27,372 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-12 22:51:27,373 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-12 22:51:27,373 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-12 22:51:27,374 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-12 22:51:27,374 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-12 22:51:27,375 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-12 22:51:27,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-12 22:51:27,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-12 22:51:27,377 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-12 22:51:27,377 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-12 22:51:27,378 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-12 22:51:27,379 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-12 22:51:27,379 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-12 22:51:27,380 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-12 22:51:27,380 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-12 22:51:27,381 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-12 22:51:27,382 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-12 22:51:27,382 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-12 22:51:27,383 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-12 22:51:27,383 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-12 22:51:27,384 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-12 22:51:27,385 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-12 22:51:27,385 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-12 22:51:27,386 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-12 22:51:27,386 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-12 22:51:27,387 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-12 22:51:27,387 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-12 22:51:27,388 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-12 22:51:27,389 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-12 22:51:27,389 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-12 22:51:27,390 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-12 22:51:27,391 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-12 22:51:27,391 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-12 22:51:27,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:27,460 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) [2021-11-12 22:51:27,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@771f2066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:27, skipping insertion in model container [2021-11-12 22:51:27,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:27,462 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:51:27,464 INFO L158 Benchmark]: Toolchain (without parser) took 5465.19ms. Allocated memory was 88.1MB in the beginning and 174.1MB in the end (delta: 86.0MB). Free memory was 52.2MB in the beginning and 90.2MB in the end (delta: -38.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-12 22:51:27,465 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:51:27,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5462.34ms. Allocated memory was 88.1MB in the beginning and 174.1MB in the end (delta: 86.0MB). Free memory was 52.2MB in the beginning and 90.2MB in the end (delta: -38.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-12 22:51:27,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5462.34ms. Allocated memory was 88.1MB in the beginning and 174.1MB in the end (delta: 86.0MB). Free memory was 52.2MB in the beginning and 90.2MB in the end (delta: -38.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7334]: 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_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF --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 a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:51:30,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:51:30,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:51:30,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:51:30,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:51:30,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:51:30,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:51:30,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:51:30,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:51:30,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:51:30,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:51:30,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:51:30,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:51:30,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:51:30,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:51:30,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:51:30,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:51:30,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:51:30,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:51:30,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:51:30,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:51:30,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:51:30,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:51:30,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:51:30,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:51:30,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:51:30,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:51:30,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:51:30,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:51:30,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:51:30,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:51:30,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:51:30,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:51:30,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:51:30,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:51:30,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:51:30,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:51:30,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:51:30,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:51:30,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:51:30,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:51:30,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:51:30,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:51:30,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:51:30,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:51:30,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:51:30,294 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:51:30,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:51:30,295 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:51:30,295 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:51:30,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:51:30,295 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:51:30,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:51:30,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:51:30,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:51:30,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:51:30,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:51:30,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:51:30,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:51:30,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:51:30,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:51:30,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:51:30,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:51:30,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:51:30,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:51:30,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:51:30,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:30,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:51:30,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:51:30,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:51:30,304 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:51:30,304 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:51:30,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:51:30,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:51:30,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:51:30,305 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_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 [2021-11-12 22:51:30,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:51:30,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:51:30,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:51:30,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:51:30,772 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:51:30,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-12 22:51:30,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/12fdf3f8f/fe4a51b8fdbd45d0bf1192deb3384091/FLAGaff48502b [2021-11-12 22:51:32,104 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:51:32,105 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-12 22:51:32,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/12fdf3f8f/fe4a51b8fdbd45d0bf1192deb3384091/FLAGaff48502b [2021-11-12 22:51:32,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/data/12fdf3f8f/fe4a51b8fdbd45d0bf1192deb3384091 [2021-11-12 22:51:32,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:51:32,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:51:32,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:32,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:51:32,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:51:32,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:32" (1/1) ... [2021-11-12 22:51:32,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23830def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:32, skipping insertion in model container [2021-11-12 22:51:32,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:51:32" (1/1) ... [2021-11-12 22:51:32,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:51:32,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:37,261 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-12 22:51:37,264 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-12 22:51:37,264 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-12 22:51:37,265 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-12 22:51:37,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-12 22:51:37,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-12 22:51:37,267 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-12 22:51:37,268 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-12 22:51:37,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-12 22:51:37,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-12 22:51:37,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-12 22:51:37,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-12 22:51:37,271 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-12 22:51:37,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-12 22:51:37,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-12 22:51:37,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-12 22:51:37,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-12 22:51:37,274 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-12 22:51:37,274 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-12 22:51:37,275 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-12 22:51:37,275 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-12 22:51:37,276 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-12 22:51:37,277 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-12 22:51:37,277 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-12 22:51:37,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-12 22:51:37,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-12 22:51:37,279 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-12 22:51:37,279 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-12 22:51:37,280 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-12 22:51:37,280 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-12 22:51:37,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-12 22:51:37,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-12 22:51:37,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-12 22:51:37,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-12 22:51:37,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-12 22:51:37,284 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-12 22:51:37,284 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-12 22:51:37,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-12 22:51:37,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-12 22:51:37,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-12 22:51:37,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-12 22:51:37,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-12 22:51:37,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-12 22:51:37,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-12 22:51:37,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-12 22:51:37,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-12 22:51:37,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-12 22:51:37,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-12 22:51:37,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-12 22:51:37,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-12 22:51:37,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-12 22:51:37,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-12 22:51:37,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-12 22:51:37,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-12 22:51:37,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-12 22:51:37,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-12 22:51:37,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-12 22:51:37,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-12 22:51:37,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-12 22:51:37,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-12 22:51:37,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-12 22:51:37,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-12 22:51:37,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-12 22:51:37,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-12 22:51:37,299 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-12 22:51:37,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-12 22:51:37,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-12 22:51:37,301 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-12 22:51:37,305 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-12 22:51:37,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-12 22:51:37,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-12 22:51:37,307 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-12 22:51:37,309 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-12 22:51:37,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-12 22:51:37,310 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-12 22:51:37,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-12 22:51:37,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-12 22:51:37,312 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-12 22:51:37,313 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-12 22:51:37,314 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-12 22:51:37,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-12 22:51:37,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-12 22:51:37,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-12 22:51:37,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-12 22:51:37,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-12 22:51:37,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-12 22:51:37,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-12 22:51:37,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-12 22:51:37,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:37,442 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:51:37,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:51:38,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-12 22:51:38,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-12 22:51:38,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-12 22:51:38,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-12 22:51:38,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-12 22:51:38,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-12 22:51:38,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-12 22:51:38,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-12 22:51:38,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-12 22:51:38,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-12 22:51:38,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-12 22:51:38,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-12 22:51:38,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-12 22:51:38,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-12 22:51:38,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-12 22:51:38,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-12 22:51:38,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-12 22:51:38,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-12 22:51:38,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-12 22:51:38,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-12 22:51:38,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-12 22:51:38,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-12 22:51:38,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-12 22:51:38,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-12 22:51:38,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-12 22:51:38,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-12 22:51:38,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-12 22:51:38,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-12 22:51:38,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-12 22:51:38,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-12 22:51:38,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-12 22:51:38,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-12 22:51:38,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-12 22:51:38,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-12 22:51:38,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-12 22:51:38,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-12 22:51:38,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-12 22:51:38,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-12 22:51:38,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-12 22:51:38,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-12 22:51:38,079 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-12 22:51:38,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-12 22:51:38,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-12 22:51:38,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-12 22:51:38,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-12 22:51:38,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-12 22:51:38,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-12 22:51:38,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-12 22:51:38,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-12 22:51:38,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-12 22:51:38,085 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-12 22:51:38,086 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-12 22:51:38,087 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-12 22:51:38,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-12 22:51:38,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-12 22:51:38,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-12 22:51:38,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-12 22:51:38,096 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-12 22:51:38,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-12 22:51:38,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-12 22:51:38,103 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-12 22:51:38,103 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-12 22:51:38,104 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-12 22:51:38,104 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-12 22:51:38,106 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-12 22:51:38,107 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-12 22:51:38,109 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-12 22:51:38,109 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-12 22:51:38,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-12 22:51:38,117 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-12 22:51:38,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-12 22:51:38,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-12 22:51:38,119 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-12 22:51:38,119 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-12 22:51:38,120 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-12 22:51:38,121 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-12 22:51:38,121 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-12 22:51:38,122 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-12 22:51:38,124 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-12 22:51:38,125 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-12 22:51:38,126 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-12 22:51:38,127 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-12 22:51:38,128 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-12 22:51:38,128 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-12 22:51:38,128 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-12 22:51:38,129 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-12 22:51:38,129 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-12 22:51:38,130 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-12 22:51:38,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:38,185 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:51:38,719 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-12 22:51:38,719 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-12 22:51:38,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-12 22:51:38,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-12 22:51:38,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-12 22:51:38,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-12 22:51:38,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-12 22:51:38,722 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-12 22:51:38,722 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-12 22:51:38,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-12 22:51:38,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-12 22:51:38,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-12 22:51:38,724 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-12 22:51:38,724 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-12 22:51:38,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-12 22:51:38,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-12 22:51:38,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-12 22:51:38,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-12 22:51:38,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-12 22:51:38,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-12 22:51:38,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-12 22:51:38,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-12 22:51:38,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-12 22:51:38,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-12 22:51:38,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-12 22:51:38,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-12 22:51:38,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-12 22:51:38,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-12 22:51:38,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-12 22:51:38,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-12 22:51:38,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-12 22:51:38,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-12 22:51:38,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-12 22:51:38,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-12 22:51:38,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-12 22:51:38,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-12 22:51:38,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-12 22:51:38,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-12 22:51:38,734 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-12 22:51:38,734 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-12 22:51:38,735 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-12 22:51:38,735 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-12 22:51:38,735 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-12 22:51:38,736 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-12 22:51:38,736 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-12 22:51:38,736 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-12 22:51:38,737 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-12 22:51:38,737 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-12 22:51:38,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-12 22:51:38,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-12 22:51:38,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-12 22:51:38,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-12 22:51:38,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-12 22:51:38,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-12 22:51:38,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-12 22:51:38,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-12 22:51:38,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-12 22:51:38,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-12 22:51:38,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-12 22:51:38,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-12 22:51:38,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-12 22:51:38,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-12 22:51:38,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-12 22:51:38,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-12 22:51:38,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-12 22:51:38,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-12 22:51:38,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-12 22:51:38,745 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-12 22:51:38,745 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-12 22:51:38,745 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-12 22:51:38,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-12 22:51:38,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-12 22:51:38,746 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-12 22:51:38,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-12 22:51:38,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-12 22:51:38,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-12 22:51:38,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-12 22:51:38,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-12 22:51:38,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-12 22:51:38,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-12 22:51:38,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-12 22:51:38,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-12 22:51:38,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-12 22:51:38,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-12 22:51:38,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-12 22:51:38,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-12 22:51:38,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-12 22:51:38,752 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-12 22:51:38,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:51:39,298 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:51:39,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39 WrapperNode [2021-11-12 22:51:39,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:51:39,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:51:39,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:51:39,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:51:39,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:51:39,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:51:39,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:51:39,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:51:39,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:39,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:40,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:51:40,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:51:40,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:51:40,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:51:40,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (1/1) ... [2021-11-12 22:51:40,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:51:40,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:40,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:51:40,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:51:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:51:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 22:51:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-12 22:51:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-12 22:51:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-12 22:51:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-12 22:51:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-12 22:51:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-12 22:51:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-12 22:51:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-12 22:51:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:51:40,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:51:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:51:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 22:51:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-12 22:51:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-12 22:51:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:51:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-12 22:51:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-12 22:51:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-12 22:51:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-12 22:51:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-12 22:51:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-12 22:51:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-12 22:51:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:51:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 22:51:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_amd8111e_priv [2021-11-12 22:51:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_amd8111e_priv [2021-11-12 22:51:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:51:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 22:51:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-12 22:51:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-12 22:51:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:51:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:51:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-12 22:51:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-12 22:51:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:51:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:51:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:51:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:51:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-12 22:51:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-12 22:51:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:51:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 22:51:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-12 22:51:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-12 22:51:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:51:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:51:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:51:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:51:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-12 22:51:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-12 22:51:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-12 22:51:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-12 22:51:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:51:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 22:51:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:51:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:51:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-12 22:51:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-12 22:51:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-12 22:51:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-12 22:51:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-12 22:51:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-12 22:51:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-12 22:51:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-12 22:51:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 22:51:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 22:51:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-12 22:51:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-12 22:51:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:51:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:51:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:51:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 22:51:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:51:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 22:51:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-12 22:51:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-12 22:51:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:51:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 22:51:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-12 22:51:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-12 22:51:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 22:51:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 22:51:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:51:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:51:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-12 22:51:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-12 22:51:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:51:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 22:51:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-12 22:51:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-12 22:51:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-12 22:51:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-12 22:51:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-12 22:51:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-12 22:51:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:51:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 22:51:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:51:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-12 22:51:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-12 22:51:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-12 22:51:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-12 22:51:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:51:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:51:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 22:51:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 22:51:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:51:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:51:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:51:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:51:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-12 22:51:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:51:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-12 22:51:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-12 22:51:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-12 22:51:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-12 22:51:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-12 22:51:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-12 22:51:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:51:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:51:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-12 22:51:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-12 22:51:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:51:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 22:51:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-12 22:51:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-12 22:51:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-12 22:51:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-12 22:51:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:51:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-12 22:51:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-12 22:51:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-12 22:51:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-12 22:51:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-12 22:51:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-12 22:51:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:51:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-12 22:51:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:51:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:51:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:51:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:51:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:51:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:51:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-12 22:51:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-12 22:51:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-12 22:51:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-12 22:51:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-12 22:51:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-12 22:51:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-12 22:51:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-12 22:51:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-12 22:51:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-12 22:51:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-12 22:51:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-12 22:51:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-12 22:51:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-12 22:51:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-12 22:51:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-12 22:51:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-12 22:51:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2021-11-12 22:51:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2021-11-12 22:51:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-12 22:51:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-12 22:51:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:51:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 22:51:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:51:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 22:51:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-12 22:51:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-12 22:51:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-12 22:51:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-12 22:51:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:51:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:51:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 22:51:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-12 22:51:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-12 22:51:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-12 22:51:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-12 22:51:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:51:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_amd8111e_priv [2021-11-12 22:51:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_amd8111e_priv [2021-11-12 22:51:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-12 22:51:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-12 22:51:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-12 22:51:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-12 22:51:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:51:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:51:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-12 22:51:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-12 22:51:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:51:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 22:51:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-12 22:51:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-12 22:51:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-12 22:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-12 22:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-12 22:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-12 22:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-12 22:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-12 22:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:51:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 22:51:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:51:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 22:51:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-12 22:51:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-12 22:51:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-12 22:51:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-12 22:51:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:51:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-12 22:51:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:51:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:51:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:51:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 22:51:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:51:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:51:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:51:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-12 22:51:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-12 22:51:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:51:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 22:51:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-12 22:51:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-12 22:51:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:51:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:51:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:51:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 22:51:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-12 22:51:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-12 22:51:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-12 22:51:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-12 22:51:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_127 [2021-11-12 22:51:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_127 [2021-11-12 22:51:40,234 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-12 22:51:40,234 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-12 22:51:47,899 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:52:19,541 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:52:19,541 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:52:19,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:52:19 BoogieIcfgContainer [2021-11-12 22:52:19,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:52:19,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:52:19,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:52:19,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:52:19,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:51:32" (1/3) ... [2021-11-12 22:52:19,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ed7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:52:19, skipping insertion in model container [2021-11-12 22:52:19,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:51:39" (2/3) ... [2021-11-12 22:52:19,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ed7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:52:19, skipping insertion in model container [2021-11-12 22:52:19,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:52:19" (3/3) ... [2021-11-12 22:52:19,555 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-12 22:52:19,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:52:19,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-12 22:52:19,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:52:19,631 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 [2021-11-12 22:52:19,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-12 22:52:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 1820 states, 1169 states have (on average 1.2472198460222412) internal successors, (1458), 1232 states have internal predecessors, (1458), 512 states have call successors, (512), 112 states have call predecessors, (512), 111 states have return successors, (508), 499 states have call predecessors, (508), 508 states have call successors, (508) [2021-11-12 22:52:19,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-12 22:52:19,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:19,709 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:19,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:19,716 INFO L85 PathProgramCache]: Analyzing trace with hash 318999828, now seen corresponding path program 1 times [2021-11-12 22:52:19,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:19,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121207191] [2021-11-12 22:52:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:19,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:19,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:19,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:19,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:52:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:21,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:21,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:21,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:22,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:22,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121207191] [2021-11-12 22:52:22,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121207191] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:22,183 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:22,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:22,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838531092] [2021-11-12 22:52:22,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:22,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:22,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:22,231 INFO L87 Difference]: Start difference. First operand has 1820 states, 1169 states have (on average 1.2472198460222412) internal successors, (1458), 1232 states have internal predecessors, (1458), 512 states have call successors, (512), 112 states have call predecessors, (512), 111 states have return successors, (508), 499 states have call predecessors, (508), 508 states have call successors, (508) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:52:22,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:22,579 INFO L93 Difference]: Finished difference Result 3607 states and 5031 transitions. [2021-11-12 22:52:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:22,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-12 22:52:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:22,613 INFO L225 Difference]: With dead ends: 3607 [2021-11-12 22:52:22,613 INFO L226 Difference]: Without dead ends: 1802 [2021-11-12 22:52:22,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:22,635 INFO L933 BasicCegarLoop]: 2435 mSDtfsCounter, 2391 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:22,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2393 Valid, 4868 Invalid, 2 Unknown, 0 Unchecked, 43.01ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.37ms Time] [2021-11-12 22:52:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-12 22:52:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2021-11-12 22:52:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1158 states have (on average 1.2150259067357514) internal successors, (1407), 1218 states have internal predecessors, (1407), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2421 transitions. [2021-11-12 22:52:22,853 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2421 transitions. Word has length 64 [2021-11-12 22:52:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:22,855 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 2421 transitions. [2021-11-12 22:52:22,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 22:52:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2421 transitions. [2021-11-12 22:52:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-12 22:52:22,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:22,860 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:22,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:23,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:23,084 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:23,085 INFO L85 PathProgramCache]: Analyzing trace with hash 218495242, now seen corresponding path program 1 times [2021-11-12 22:52:23,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:23,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653036144] [2021-11-12 22:52:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:23,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:23,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:23,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:23,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:52:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:24,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:24,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:24,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:25,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:25,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653036144] [2021-11-12 22:52:25,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653036144] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:25,272 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:25,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:25,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540054177] [2021-11-12 22:52:25,273 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:25,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:25,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:25,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:25,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:25,276 INFO L87 Difference]: Start difference. First operand 1802 states and 2421 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 22:52:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:25,531 INFO L93 Difference]: Finished difference Result 1802 states and 2421 transitions. [2021-11-12 22:52:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:25,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 70 [2021-11-12 22:52:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:25,553 INFO L225 Difference]: With dead ends: 1802 [2021-11-12 22:52:25,553 INFO L226 Difference]: Without dead ends: 1800 [2021-11-12 22:52:25,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:25,558 INFO L933 BasicCegarLoop]: 2417 mSDtfsCounter, 2364 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.20ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:25,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2366 Valid, 7247 Invalid, 2 Unknown, 0 Unchecked, 26.26ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.20ms Time] [2021-11-12 22:52:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-12 22:52:25,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2021-11-12 22:52:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1157 states have (on average 1.2143474503025065) internal successors, (1405), 1216 states have internal predecessors, (1405), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2419 transitions. [2021-11-12 22:52:25,702 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2419 transitions. Word has length 70 [2021-11-12 22:52:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:25,705 INFO L470 AbstractCegarLoop]: Abstraction has 1800 states and 2419 transitions. [2021-11-12 22:52:25,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-12 22:52:25,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2419 transitions. [2021-11-12 22:52:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-12 22:52:25,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:25,718 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:25,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:25,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:25,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:25,945 INFO L85 PathProgramCache]: Analyzing trace with hash -310811808, now seen corresponding path program 1 times [2021-11-12 22:52:25,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:25,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190172063] [2021-11-12 22:52:25,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:25,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:25,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:25,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:25,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:52:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:27,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:27,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:27,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:28,077 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:28,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190172063] [2021-11-12 22:52:28,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190172063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:28,078 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:28,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:28,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147064637] [2021-11-12 22:52:28,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:28,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:28,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:28,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:28,079 INFO L87 Difference]: Start difference. First operand 1800 states and 2419 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:52:28,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:28,245 INFO L93 Difference]: Finished difference Result 1800 states and 2419 transitions. [2021-11-12 22:52:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:28,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 76 [2021-11-12 22:52:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:28,261 INFO L225 Difference]: With dead ends: 1800 [2021-11-12 22:52:28,261 INFO L226 Difference]: Without dead ends: 1798 [2021-11-12 22:52:28,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:28,264 INFO L933 BasicCegarLoop]: 2415 mSDtfsCounter, 2359 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:28,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 4828 Invalid, 2 Unknown, 0 Unchecked, 16.14ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.51ms Time] [2021-11-12 22:52:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-11-12 22:52:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-11-12 22:52:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1156 states have (on average 1.2136678200692042) internal successors, (1403), 1214 states have internal predecessors, (1403), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:28,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2417 transitions. [2021-11-12 22:52:28,389 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2417 transitions. Word has length 76 [2021-11-12 22:52:28,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:28,389 INFO L470 AbstractCegarLoop]: Abstraction has 1798 states and 2417 transitions. [2021-11-12 22:52:28,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 22:52:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2417 transitions. [2021-11-12 22:52:28,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-12 22:52:28,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:28,392 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:28,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:28,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:28,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:28,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:28,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1751359827, now seen corresponding path program 1 times [2021-11-12 22:52:28,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:28,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840014446] [2021-11-12 22:52:28,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:28,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:28,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:28,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:28,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:52:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:29,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:29,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:30,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:30,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:30,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840014446] [2021-11-12 22:52:30,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840014446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:30,949 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:30,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:30,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073994522] [2021-11-12 22:52:30,949 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:30,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:30,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:30,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:30,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:30,951 INFO L87 Difference]: Start difference. First operand 1798 states and 2417 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:52:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:31,167 INFO L93 Difference]: Finished difference Result 1798 states and 2417 transitions. [2021-11-12 22:52:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:31,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2021-11-12 22:52:31,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:31,188 INFO L225 Difference]: With dead ends: 1798 [2021-11-12 22:52:31,189 INFO L226 Difference]: Without dead ends: 1796 [2021-11-12 22:52:31,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:31,193 INFO L933 BasicCegarLoop]: 2413 mSDtfsCounter, 2348 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:31,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2350 Valid, 7235 Invalid, 2 Unknown, 0 Unchecked, 32.08ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.37ms Time] [2021-11-12 22:52:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2021-11-12 22:52:31,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2021-11-12 22:52:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1155 states have (on average 1.212987012987013) internal successors, (1401), 1212 states have internal predecessors, (1401), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2415 transitions. [2021-11-12 22:52:31,339 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2415 transitions. Word has length 82 [2021-11-12 22:52:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:31,340 INFO L470 AbstractCegarLoop]: Abstraction has 1796 states and 2415 transitions. [2021-11-12 22:52:31,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 22:52:31,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2415 transitions. [2021-11-12 22:52:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-12 22:52:31,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:31,342 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:31,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:31,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:31,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:31,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2094392724, now seen corresponding path program 1 times [2021-11-12 22:52:31,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:31,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244350494] [2021-11-12 22:52:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:31,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:31,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:31,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:52:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:32,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:32,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:33,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:33,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:33,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244350494] [2021-11-12 22:52:33,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244350494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:33,654 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:33,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:33,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704409502] [2021-11-12 22:52:33,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:33,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:33,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:33,655 INFO L87 Difference]: Start difference. First operand 1796 states and 2415 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-12 22:52:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:33,820 INFO L93 Difference]: Finished difference Result 1796 states and 2415 transitions. [2021-11-12 22:52:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 88 [2021-11-12 22:52:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:33,835 INFO L225 Difference]: With dead ends: 1796 [2021-11-12 22:52:33,835 INFO L226 Difference]: Without dead ends: 1794 [2021-11-12 22:52:33,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:33,837 INFO L933 BasicCegarLoop]: 2411 mSDtfsCounter, 2340 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.86ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:33,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2342 Valid, 7229 Invalid, 2 Unknown, 0 Unchecked, 20.62ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.86ms Time] [2021-11-12 22:52:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2021-11-12 22:52:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1794. [2021-11-12 22:52:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1154 states have (on average 1.2123050259965338) internal successors, (1399), 1210 states have internal predecessors, (1399), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2413 transitions. [2021-11-12 22:52:34,007 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2413 transitions. Word has length 88 [2021-11-12 22:52:34,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:34,008 INFO L470 AbstractCegarLoop]: Abstraction has 1794 states and 2413 transitions. [2021-11-12 22:52:34,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-12 22:52:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2413 transitions. [2021-11-12 22:52:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 22:52:34,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:34,010 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:34,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:34,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:34,232 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash -363682455, now seen corresponding path program 1 times [2021-11-12 22:52:34,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:34,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144674396] [2021-11-12 22:52:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:34,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:34,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:34,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:34,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:52:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:35,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-12 22:52:35,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 22:52:37,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-12 22:52:39,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:39,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144674396] [2021-11-12 22:52:39,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144674396] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:52:39,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:52:39,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2021-11-12 22:52:39,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408904527] [2021-11-12 22:52:39,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:39,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 22:52:39,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 22:52:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:52:39,378 INFO L87 Difference]: Start difference. First operand 1794 states and 2413 transitions. Second operand has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2021-11-12 22:52:41,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:41,767 INFO L93 Difference]: Finished difference Result 3637 states and 4912 transitions. [2021-11-12 22:52:41,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 22:52:41,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 110 [2021-11-12 22:52:41,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:41,791 INFO L225 Difference]: With dead ends: 3637 [2021-11-12 22:52:41,791 INFO L226 Difference]: Without dead ends: 1860 [2021-11-12 22:52:41,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:52:41,803 INFO L933 BasicCegarLoop]: 2488 mSDtfsCounter, 431 mSDsluCounter, 26703 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1528.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 29191 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.17ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1708.25ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:41,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 29191 Invalid, 449 Unknown, 0 Unchecked, 94.17ms Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1708.25ms Time] [2021-11-12 22:52:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2021-11-12 22:52:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1794. [2021-11-12 22:52:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1154 states have (on average 1.2114384748700173) internal successors, (1398), 1209 states have internal predecessors, (1398), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2412 transitions. [2021-11-12 22:52:42,035 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2412 transitions. Word has length 110 [2021-11-12 22:52:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:42,035 INFO L470 AbstractCegarLoop]: Abstraction has 1794 states and 2412 transitions. [2021-11-12 22:52:42,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2021-11-12 22:52:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2412 transitions. [2021-11-12 22:52:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-12 22:52:42,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:42,037 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:42,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:42,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:42,252 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:42,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1387025999, now seen corresponding path program 1 times [2021-11-12 22:52:42,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:42,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685951985] [2021-11-12 22:52:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:42,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:42,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:42,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:42,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:52:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:43,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:43,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:43,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:44,295 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:44,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685951985] [2021-11-12 22:52:44,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685951985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:44,296 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:44,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:44,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822306876] [2021-11-12 22:52:44,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:44,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:44,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:44,298 INFO L87 Difference]: Start difference. First operand 1794 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-12 22:52:44,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:44,477 INFO L93 Difference]: Finished difference Result 1794 states and 2412 transitions. [2021-11-12 22:52:44,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:44,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 94 [2021-11-12 22:52:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:44,493 INFO L225 Difference]: With dead ends: 1794 [2021-11-12 22:52:44,494 INFO L226 Difference]: Without dead ends: 1792 [2021-11-12 22:52:44,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:44,497 INFO L933 BasicCegarLoop]: 2408 mSDtfsCounter, 2331 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 7220 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.25ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:44,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2333 Valid, 7220 Invalid, 2 Unknown, 0 Unchecked, 19.64ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.25ms Time] [2021-11-12 22:52:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2021-11-12 22:52:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1792. [2021-11-12 22:52:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1153 states have (on average 1.2107545533391153) internal successors, (1396), 1207 states have internal predecessors, (1396), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-12 22:52:44,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2410 transitions. [2021-11-12 22:52:44,661 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2410 transitions. Word has length 94 [2021-11-12 22:52:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:44,661 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2410 transitions. [2021-11-12 22:52:44,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-12 22:52:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2410 transitions. [2021-11-12 22:52:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 22:52:44,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:44,664 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:44,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:52:44,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:44,880 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash -854816666, now seen corresponding path program 1 times [2021-11-12 22:52:44,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:44,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126455398] [2021-11-12 22:52:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:44,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:44,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:44,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:44,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:52:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:46,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:52:46,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:52:46,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:52:46,809 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:46,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126455398] [2021-11-12 22:52:46,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126455398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:46,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:46,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:52:46,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609205620] [2021-11-12 22:52:46,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:46,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:52:46,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:52:46,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:46,812 INFO L87 Difference]: Start difference. First operand 1792 states and 2410 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 22:52:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:47,258 INFO L93 Difference]: Finished difference Result 4761 states and 6423 transitions. [2021-11-12 22:52:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:47,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2021-11-12 22:52:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:47,288 INFO L225 Difference]: With dead ends: 4761 [2021-11-12 22:52:47,288 INFO L226 Difference]: Without dead ends: 2990 [2021-11-12 22:52:47,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:47,301 INFO L933 BasicCegarLoop]: 3291 mSDtfsCounter, 2394 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 6550 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.24ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 203.89ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:47,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 6550 Invalid, 10 Unknown, 0 Unchecked, 22.24ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 203.89ms Time] [2021-11-12 22:52:47,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-11-12 22:52:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2978. [2021-11-12 22:52:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 1923 states have (on average 1.2137285491419656) internal successors, (2334), 2000 states have internal predecessors, (2334), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:52:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4032 transitions. [2021-11-12 22:52:47,616 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4032 transitions. Word has length 114 [2021-11-12 22:52:47,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:47,617 INFO L470 AbstractCegarLoop]: Abstraction has 2978 states and 4032 transitions. [2021-11-12 22:52:47,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-12 22:52:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4032 transitions. [2021-11-12 22:52:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-12 22:52:47,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:47,623 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:47,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:47,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:47,848 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1269656057, now seen corresponding path program 1 times [2021-11-12 22:52:47,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:47,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892237062] [2021-11-12 22:52:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:47,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:47,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:47,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:47,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:52:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:48,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:48,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:49,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:50,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:50,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892237062] [2021-11-12 22:52:50,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892237062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:50,020 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:50,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:50,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772889984] [2021-11-12 22:52:50,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:50,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:50,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:50,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:50,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:50,022 INFO L87 Difference]: Start difference. First operand 2978 states and 4032 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-12 22:52:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:50,263 INFO L93 Difference]: Finished difference Result 2978 states and 4032 transitions. [2021-11-12 22:52:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 100 [2021-11-12 22:52:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:50,289 INFO L225 Difference]: With dead ends: 2978 [2021-11-12 22:52:50,290 INFO L226 Difference]: Without dead ends: 2976 [2021-11-12 22:52:50,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:50,295 INFO L933 BasicCegarLoop]: 2406 mSDtfsCounter, 2326 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:50,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2328 Valid, 4810 Invalid, 2 Unknown, 0 Unchecked, 13.89ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.59ms Time] [2021-11-12 22:52:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-11-12 22:52:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2021-11-12 22:52:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 1922 states have (on average 1.2133194588969822) internal successors, (2332), 1998 states have internal predecessors, (2332), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:52:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4030 transitions. [2021-11-12 22:52:50,572 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4030 transitions. Word has length 100 [2021-11-12 22:52:50,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:50,573 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 4030 transitions. [2021-11-12 22:52:50,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2021-11-12 22:52:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4030 transitions. [2021-11-12 22:52:50,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 22:52:50,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:50,575 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:50,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:50,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:50,800 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1559665515, now seen corresponding path program 1 times [2021-11-12 22:52:50,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:50,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767655408] [2021-11-12 22:52:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:50,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:50,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:50,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:50,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:52:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:52,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:52:52,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-12 22:52:52,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:52,706 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-12 22:52:52,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:52,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767655408] [2021-11-12 22:52:52,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767655408] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:52,707 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:52,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:52:52,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297406044] [2021-11-12 22:52:52,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:52,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:52:52,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:52,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:52:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:52,709 INFO L87 Difference]: Start difference. First operand 2976 states and 4030 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:52:53,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:53,056 INFO L93 Difference]: Finished difference Result 5927 states and 8026 transitions. [2021-11-12 22:52:53,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:52:53,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 120 [2021-11-12 22:52:53,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:53,083 INFO L225 Difference]: With dead ends: 5927 [2021-11-12 22:52:53,083 INFO L226 Difference]: Without dead ends: 2972 [2021-11-12 22:52:53,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:52:53,099 INFO L933 BasicCegarLoop]: 2402 mSDtfsCounter, 2388 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:53,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2388 Valid, 2402 Invalid, 3 Unknown, 0 Unchecked, 6.96ms Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 128.27ms Time] [2021-11-12 22:52:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-11-12 22:52:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2972. [2021-11-12 22:52:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 1919 states have (on average 1.2126107347576862) internal successors, (2327), 1994 states have internal predecessors, (2327), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:52:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4025 transitions. [2021-11-12 22:52:53,365 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4025 transitions. Word has length 120 [2021-11-12 22:52:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:53,366 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 4025 transitions. [2021-11-12 22:52:53,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-12 22:52:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4025 transitions. [2021-11-12 22:52:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 22:52:53,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:53,369 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:53,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:53,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:53,596 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:53,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1020188700, now seen corresponding path program 1 times [2021-11-12 22:52:53,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:53,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180624147] [2021-11-12 22:52:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:53,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:53,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:53,598 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:53,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:52:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:54,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:54,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:55,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:55,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:55,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180624147] [2021-11-12 22:52:55,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180624147] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:55,796 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:55,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:55,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415386896] [2021-11-12 22:52:55,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:55,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:55,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:55,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:55,798 INFO L87 Difference]: Start difference. First operand 2972 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2021-11-12 22:52:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:56,070 INFO L93 Difference]: Finished difference Result 2972 states and 4025 transitions. [2021-11-12 22:52:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:56,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 106 [2021-11-12 22:52:56,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:56,095 INFO L225 Difference]: With dead ends: 2972 [2021-11-12 22:52:56,096 INFO L226 Difference]: Without dead ends: 2970 [2021-11-12 22:52:56,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:56,099 INFO L933 BasicCegarLoop]: 2399 mSDtfsCounter, 2321 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.91ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:56,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 4792 Invalid, 2 Unknown, 0 Unchecked, 14.44ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.91ms Time] [2021-11-12 22:52:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-11-12 22:52:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2970. [2021-11-12 22:52:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 1918 states have (on average 1.2122002085505734) internal successors, (2325), 1992 states have internal predecessors, (2325), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:52:56,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4023 transitions. [2021-11-12 22:52:56,454 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4023 transitions. Word has length 106 [2021-11-12 22:52:56,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:56,455 INFO L470 AbstractCegarLoop]: Abstraction has 2970 states and 4023 transitions. [2021-11-12 22:52:56,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2021-11-12 22:52:56,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4023 transitions. [2021-11-12 22:52:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 22:52:56,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:56,458 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:56,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:56,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:56,684 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1148944287, now seen corresponding path program 1 times [2021-11-12 22:52:56,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:56,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484502005] [2021-11-12 22:52:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:56,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:56,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:56,686 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:56,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:52:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:57,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:52:57,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:58,477 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:58,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:52:58,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:52:58,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484502005] [2021-11-12 22:52:58,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484502005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:52:58,865 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:52:58,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:52:58,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595609848] [2021-11-12 22:52:58,865 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:58,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:58,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:52:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:58,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:52:58,867 INFO L87 Difference]: Start difference. First operand 2970 states and 4023 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-12 22:52:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:59,137 INFO L93 Difference]: Finished difference Result 2970 states and 4023 transitions. [2021-11-12 22:52:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:52:59,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 108 [2021-11-12 22:52:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:59,182 INFO L225 Difference]: With dead ends: 2970 [2021-11-12 22:52:59,182 INFO L226 Difference]: Without dead ends: 2968 [2021-11-12 22:52:59,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:52:59,185 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 2306 mSDsluCounter, 4790 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 7187 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:59,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 7187 Invalid, 2 Unknown, 0 Unchecked, 16.39ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.34ms Time] [2021-11-12 22:52:59,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-11-12 22:52:59,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2968. [2021-11-12 22:52:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 1917 states have (on average 1.2117892540427753) internal successors, (2323), 1990 states have internal predecessors, (2323), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:52:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4021 transitions. [2021-11-12 22:52:59,526 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4021 transitions. Word has length 108 [2021-11-12 22:52:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:59,527 INFO L470 AbstractCegarLoop]: Abstraction has 2968 states and 4021 transitions. [2021-11-12 22:52:59,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-12 22:52:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4021 transitions. [2021-11-12 22:52:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 22:52:59,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:59,530 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:52:59,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:59,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:52:59,744 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:52:59,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:59,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1073674133, now seen corresponding path program 1 times [2021-11-12 22:52:59,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:52:59,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439366634] [2021-11-12 22:52:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:59,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:52:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:52:59,747 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:52:59,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:53:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:00,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:00,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:01,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:01,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:01,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439366634] [2021-11-12 22:53:01,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439366634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:01,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:01,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:01,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118606323] [2021-11-12 22:53:01,959 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:01,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:01,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:01,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:01,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:01,960 INFO L87 Difference]: Start difference. First operand 2968 states and 4021 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, (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) [2021-11-12 22:53:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:02,300 INFO L93 Difference]: Finished difference Result 2968 states and 4021 transitions. [2021-11-12 22:53:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:02,301 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, (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 114 [2021-11-12 22:53:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:02,315 INFO L225 Difference]: With dead ends: 2968 [2021-11-12 22:53:02,315 INFO L226 Difference]: Without dead ends: 2966 [2021-11-12 22:53:02,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:02,319 INFO L933 BasicCegarLoop]: 2395 mSDtfsCounter, 2298 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.53ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:02,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2300 Valid, 7181 Invalid, 2 Unknown, 0 Unchecked, 15.21ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.53ms Time] [2021-11-12 22:53:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-11-12 22:53:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2966. [2021-11-12 22:53:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1916 states have (on average 1.2113778705636744) internal successors, (2321), 1988 states have internal predecessors, (2321), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4019 transitions. [2021-11-12 22:53:02,637 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4019 transitions. Word has length 114 [2021-11-12 22:53:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:02,637 INFO L470 AbstractCegarLoop]: Abstraction has 2966 states and 4019 transitions. [2021-11-12 22:53:02,637 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, (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) [2021-11-12 22:53:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4019 transitions. [2021-11-12 22:53:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 22:53:02,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:02,640 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:02,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:02,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:02,856 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:02,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:02,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1787018504, now seen corresponding path program 1 times [2021-11-12 22:53:02,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:02,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119713953] [2021-11-12 22:53:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:02,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:02,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:02,859 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:02,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:53:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:04,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:04,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:04,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:05,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:05,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119713953] [2021-11-12 22:53:05,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119713953] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:05,145 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:05,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:05,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173351908] [2021-11-12 22:53:05,145 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:05,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:05,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:05,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:05,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:05,146 INFO L87 Difference]: Start difference. First operand 2966 states and 4019 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, (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) [2021-11-12 22:53:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:05,388 INFO L93 Difference]: Finished difference Result 2966 states and 4019 transitions. [2021-11-12 22:53:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:05,389 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, (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 120 [2021-11-12 22:53:05,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:05,400 INFO L225 Difference]: With dead ends: 2966 [2021-11-12 22:53:05,400 INFO L226 Difference]: Without dead ends: 2964 [2021-11-12 22:53:05,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:05,403 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2290 mSDsluCounter, 4782 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:05,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2292 Valid, 7175 Invalid, 2 Unknown, 0 Unchecked, 11.20ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.47ms Time] [2021-11-12 22:53:05,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-11-12 22:53:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-11-12 22:53:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 1915 states have (on average 1.2109660574412533) internal successors, (2319), 1986 states have internal predecessors, (2319), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4017 transitions. [2021-11-12 22:53:05,710 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4017 transitions. Word has length 120 [2021-11-12 22:53:05,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:05,711 INFO L470 AbstractCegarLoop]: Abstraction has 2964 states and 4017 transitions. [2021-11-12 22:53:05,711 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, (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) [2021-11-12 22:53:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4017 transitions. [2021-11-12 22:53:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 22:53:05,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:05,714 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:05,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:05,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:05,928 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:05,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash 893804278, now seen corresponding path program 1 times [2021-11-12 22:53:05,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:05,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921585966] [2021-11-12 22:53:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:05,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:05,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:05,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:05,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:53:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:07,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:07,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:07,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:08,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:08,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921585966] [2021-11-12 22:53:08,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921585966] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:08,194 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:08,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:08,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880169092] [2021-11-12 22:53:08,195 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:08,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:08,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:08,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:08,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:08,197 INFO L87 Difference]: Start difference. First operand 2964 states and 4017 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, (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) [2021-11-12 22:53:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:08,447 INFO L93 Difference]: Finished difference Result 2964 states and 4017 transitions. [2021-11-12 22:53:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:08,448 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, (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 126 [2021-11-12 22:53:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:08,458 INFO L225 Difference]: With dead ends: 2964 [2021-11-12 22:53:08,458 INFO L226 Difference]: Without dead ends: 2962 [2021-11-12 22:53:08,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:08,461 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 2282 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.73ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:08,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 7169 Invalid, 2 Unknown, 0 Unchecked, 11.58ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.73ms Time] [2021-11-12 22:53:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-11-12 22:53:08,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2962. [2021-11-12 22:53:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 1914 states have (on average 1.21055381400209) internal successors, (2317), 1984 states have internal predecessors, (2317), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 4015 transitions. [2021-11-12 22:53:08,746 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 4015 transitions. Word has length 126 [2021-11-12 22:53:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:08,746 INFO L470 AbstractCegarLoop]: Abstraction has 2962 states and 4015 transitions. [2021-11-12 22:53:08,747 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, (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) [2021-11-12 22:53:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 4015 transitions. [2021-11-12 22:53:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-12 22:53:08,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:08,750 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:08,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-12 22:53:08,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:08,964 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1173658340, now seen corresponding path program 1 times [2021-11-12 22:53:08,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:08,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772216283] [2021-11-12 22:53:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:08,966 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:08,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:08,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:08,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:53:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:10,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:10,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:10,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:11,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:11,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772216283] [2021-11-12 22:53:11,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772216283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:11,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:11,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:11,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542703711] [2021-11-12 22:53:11,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:11,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:11,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:11,477 INFO L87 Difference]: Start difference. First operand 2962 states and 4015 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-11-12 22:53:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:11,840 INFO L93 Difference]: Finished difference Result 2962 states and 4015 transitions. [2021-11-12 22:53:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:11,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 132 [2021-11-12 22:53:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:11,855 INFO L225 Difference]: With dead ends: 2962 [2021-11-12 22:53:11,855 INFO L226 Difference]: Without dead ends: 2960 [2021-11-12 22:53:11,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:11,858 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2274 mSDsluCounter, 4774 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 7163 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:11,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2276 Valid, 7163 Invalid, 2 Unknown, 0 Unchecked, 15.38ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.99ms Time] [2021-11-12 22:53:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-11-12 22:53:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2960. [2021-11-12 22:53:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 1913 states have (on average 1.210141139571354) internal successors, (2315), 1982 states have internal predecessors, (2315), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 4013 transitions. [2021-11-12 22:53:12,163 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 4013 transitions. Word has length 132 [2021-11-12 22:53:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:12,164 INFO L470 AbstractCegarLoop]: Abstraction has 2960 states and 4013 transitions. [2021-11-12 22:53:12,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2021-11-12 22:53:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 4013 transitions. [2021-11-12 22:53:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-12 22:53:12,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:12,169 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:12,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-12 22:53:12,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:12,384 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:12,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:12,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1744559868, now seen corresponding path program 1 times [2021-11-12 22:53:12,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:12,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960876391] [2021-11-12 22:53:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:12,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:12,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:12,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:12,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:53:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:13,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:13,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:14,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:14,852 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:14,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960876391] [2021-11-12 22:53:14,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960876391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:14,853 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:14,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:14,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914289701] [2021-11-12 22:53:14,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:14,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:14,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:14,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:14,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:14,855 INFO L87 Difference]: Start difference. First operand 2960 states and 4013 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2021-11-12 22:53:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:15,135 INFO L93 Difference]: Finished difference Result 2960 states and 4013 transitions. [2021-11-12 22:53:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:15,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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 138 [2021-11-12 22:53:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:15,147 INFO L225 Difference]: With dead ends: 2960 [2021-11-12 22:53:15,147 INFO L226 Difference]: Without dead ends: 2958 [2021-11-12 22:53:15,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:15,150 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2266 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.54ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:15,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2268 Valid, 7157 Invalid, 2 Unknown, 0 Unchecked, 10.61ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.54ms Time] [2021-11-12 22:53:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-11-12 22:53:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2021-11-12 22:53:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 1912 states have (on average 1.2097280334728033) internal successors, (2313), 1980 states have internal predecessors, (2313), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4011 transitions. [2021-11-12 22:53:15,496 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4011 transitions. Word has length 138 [2021-11-12 22:53:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:15,497 INFO L470 AbstractCegarLoop]: Abstraction has 2958 states and 4011 transitions. [2021-11-12 22:53:15,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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) [2021-11-12 22:53:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4011 transitions. [2021-11-12 22:53:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-12 22:53:15,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:15,501 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:15,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:15,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:15,716 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:15,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash 487241016, now seen corresponding path program 1 times [2021-11-12 22:53:15,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:15,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33962447] [2021-11-12 22:53:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:15,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:15,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:15,720 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:15,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:53:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:16,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:16,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:17,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:18,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:18,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33962447] [2021-11-12 22:53:18,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33962447] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:18,593 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:18,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 22:53:18,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516092510] [2021-11-12 22:53:18,594 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:18,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:53:18,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:18,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:53:18,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:18,601 INFO L87 Difference]: Start difference. First operand 2958 states and 4011 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:53:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:20,662 INFO L93 Difference]: Finished difference Result 2958 states and 4011 transitions. [2021-11-12 22:53:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-12 22:53:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:20,676 INFO L225 Difference]: With dead ends: 2958 [2021-11-12 22:53:20,677 INFO L226 Difference]: Without dead ends: 2956 [2021-11-12 22:53:20,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:53:20,680 INFO L933 BasicCegarLoop]: 2385 mSDtfsCounter, 3612 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1333.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.90ms SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1668.01ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:20,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 7151 Invalid, 994 Unknown, 0 Unchecked, 21.90ms Time], IncrementalHoareTripleChecker [992 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1668.01ms Time] [2021-11-12 22:53:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-11-12 22:53:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2956. [2021-11-12 22:53:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 1911 states have (on average 1.2093144950287806) internal successors, (2311), 1978 states have internal predecessors, (2311), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:21,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 4009 transitions. [2021-11-12 22:53:21,116 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 4009 transitions. Word has length 144 [2021-11-12 22:53:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:21,117 INFO L470 AbstractCegarLoop]: Abstraction has 2956 states and 4009 transitions. [2021-11-12 22:53:21,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:53:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 4009 transitions. [2021-11-12 22:53:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-12 22:53:21,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:21,121 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:21,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-12 22:53:21,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:21,338 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:21,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1497997390, now seen corresponding path program 1 times [2021-11-12 22:53:21,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:21,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628948117] [2021-11-12 22:53:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:21,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:21,342 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:21,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:53:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:22,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:22,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:23,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:23,910 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:23,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628948117] [2021-11-12 22:53:23,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628948117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:23,911 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:23,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:23,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206384736] [2021-11-12 22:53:23,911 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:23,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:23,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:23,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:23,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:23,913 INFO L87 Difference]: Start difference. First operand 2956 states and 4009 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-11-12 22:53:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:24,158 INFO L93 Difference]: Finished difference Result 2956 states and 4009 transitions. [2021-11-12 22:53:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:24,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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 150 [2021-11-12 22:53:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:24,170 INFO L225 Difference]: With dead ends: 2956 [2021-11-12 22:53:24,170 INFO L226 Difference]: Without dead ends: 2954 [2021-11-12 22:53:24,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:24,173 INFO L933 BasicCegarLoop]: 2383 mSDtfsCounter, 2253 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:24,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2255 Valid, 4764 Invalid, 2 Unknown, 0 Unchecked, 8.07ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.78ms Time] [2021-11-12 22:53:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-11-12 22:53:24,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2954. [2021-11-12 22:53:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 1910 states have (on average 1.2089005235602095) internal successors, (2309), 1976 states have internal predecessors, (2309), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-12 22:53:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 4007 transitions. [2021-11-12 22:53:24,587 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 4007 transitions. Word has length 150 [2021-11-12 22:53:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:24,588 INFO L470 AbstractCegarLoop]: Abstraction has 2954 states and 4007 transitions. [2021-11-12 22:53:24,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-11-12 22:53:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 4007 transitions. [2021-11-12 22:53:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-12 22:53:24,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:24,592 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:24,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:24,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:24,806 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1404633559, now seen corresponding path program 1 times [2021-11-12 22:53:24,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:24,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782670500] [2021-11-12 22:53:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:24,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:24,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:24,810 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:24,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 22:53:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:26,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:53:26,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-12 22:53:26,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:53:27,782 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:27,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782670500] [2021-11-12 22:53:27,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782670500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:27,783 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:27,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 17 [2021-11-12 22:53:27,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824678785] [2021-11-12 22:53:27,783 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:27,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 22:53:27,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 22:53:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-12 22:53:27,785 INFO L87 Difference]: Start difference. First operand 2954 states and 4007 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-12 22:53:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:31,600 INFO L93 Difference]: Finished difference Result 7243 states and 9984 transitions. [2021-11-12 22:53:31,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 22:53:31,605 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 177 [2021-11-12 22:53:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:31,626 INFO L225 Difference]: With dead ends: 7243 [2021-11-12 22:53:31,626 INFO L226 Difference]: Without dead ends: 4309 [2021-11-12 22:53:31,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2021-11-12 22:53:31,647 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 1725 mSDsluCounter, 35150 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2157.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 38304 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.97ms SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2410.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:31,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1864 Valid, 38304 Invalid, 1578 Unknown, 0 Unchecked, 63.97ms Time], IncrementalHoareTripleChecker [837 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2410.64ms Time] [2021-11-12 22:53:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2021-11-12 22:53:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 2969. [2021-11-12 22:53:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 1921 states have (on average 1.2077043206663196) internal successors, (2320), 1987 states have internal predecessors, (2320), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:53:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 4026 transitions. [2021-11-12 22:53:32,236 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 4026 transitions. Word has length 177 [2021-11-12 22:53:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:32,236 INFO L470 AbstractCegarLoop]: Abstraction has 2969 states and 4026 transitions. [2021-11-12 22:53:32,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-12 22:53:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 4026 transitions. [2021-11-12 22:53:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-12 22:53:32,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:32,241 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:32,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:32,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:32,464 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 198254540, now seen corresponding path program 1 times [2021-11-12 22:53:32,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:32,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381464374] [2021-11-12 22:53:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:32,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:32,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:32,466 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:32,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:53:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:33,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:33,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:34,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:34,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:34,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381464374] [2021-11-12 22:53:34,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381464374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:34,896 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:34,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:34,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996042108] [2021-11-12 22:53:34,896 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:34,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:34,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:34,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:34,898 INFO L87 Difference]: Start difference. First operand 2969 states and 4026 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-12 22:53:35,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:35,194 INFO L93 Difference]: Finished difference Result 2969 states and 4026 transitions. [2021-11-12 22:53:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:35,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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 156 [2021-11-12 22:53:35,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:35,209 INFO L225 Difference]: With dead ends: 2969 [2021-11-12 22:53:35,209 INFO L226 Difference]: Without dead ends: 2967 [2021-11-12 22:53:35,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:35,213 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 2242 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:35,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 7139 Invalid, 2 Unknown, 0 Unchecked, 11.60ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.76ms Time] [2021-11-12 22:53:35,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-11-12 22:53:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2967. [2021-11-12 22:53:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 1920 states have (on average 1.2072916666666667) internal successors, (2318), 1985 states have internal predecessors, (2318), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:53:35,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4024 transitions. [2021-11-12 22:53:35,730 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4024 transitions. Word has length 156 [2021-11-12 22:53:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:35,731 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 4024 transitions. [2021-11-12 22:53:35,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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) [2021-11-12 22:53:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4024 transitions. [2021-11-12 22:53:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-12 22:53:35,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:35,735 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:53:35,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:35,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:35,960 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1978198036, now seen corresponding path program 1 times [2021-11-12 22:53:35,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:35,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937293107] [2021-11-12 22:53:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:35,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:35,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:35,963 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 22:53:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:37,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:53:37,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-12 22:53:38,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-12 22:53:39,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:39,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937293107] [2021-11-12 22:53:39,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937293107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:39,680 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:39,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-12 22:53:39,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219910361] [2021-11-12 22:53:39,680 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:39,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-12 22:53:39,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:39,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-12 22:53:39,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:53:39,682 INFO L87 Difference]: Start difference. First operand 2967 states and 4024 transitions. Second operand has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2021-11-12 22:53:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:51,625 INFO L93 Difference]: Finished difference Result 8034 states and 11130 transitions. [2021-11-12 22:53:51,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-12 22:53:51,628 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) Word has length 183 [2021-11-12 22:53:51,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:51,651 INFO L225 Difference]: With dead ends: 8034 [2021-11-12 22:53:51,651 INFO L226 Difference]: Without dead ends: 5086 [2021-11-12 22:53:51,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=719, Invalid=3441, Unknown=0, NotChecked=0, Total=4160 [2021-11-12 22:53:51,670 INFO L933 BasicCegarLoop]: 3599 mSDtfsCounter, 3947 mSDsluCounter, 56241 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 2420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7055.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 59840 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.54ms SdHoareTripleChecker+Time, 2420 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7748.19ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:51,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4086 Valid, 59840 Invalid, 4847 Unknown, 0 Unchecked, 105.54ms Time], IncrementalHoareTripleChecker [2420 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 7748.19ms Time] [2021-11-12 22:53:51,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2021-11-12 22:53:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 2972. [2021-11-12 22:53:52,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 1925 states have (on average 1.2077922077922079) internal successors, (2325), 1990 states have internal predecessors, (2325), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:53:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4031 transitions. [2021-11-12 22:53:52,249 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4031 transitions. Word has length 183 [2021-11-12 22:53:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:52,250 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 4031 transitions. [2021-11-12 22:53:52,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2021-11-12 22:53:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4031 transitions. [2021-11-12 22:53:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-12 22:53:52,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:52,254 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:52,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:52,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:52,480 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:52,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:52,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1376849069, now seen corresponding path program 1 times [2021-11-12 22:53:52,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:52,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933690477] [2021-11-12 22:53:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:52,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:52,483 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:52,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 22:53:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:53,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:53,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:54,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:55,045 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:55,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933690477] [2021-11-12 22:53:55,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933690477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:55,045 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:55,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:55,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047336230] [2021-11-12 22:53:55,046 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:55,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:55,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:55,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:55,048 INFO L87 Difference]: Start difference. First operand 2972 states and 4031 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2021-11-12 22:53:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:55,434 INFO L93 Difference]: Finished difference Result 2972 states and 4031 transitions. [2021-11-12 22:53:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:55,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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 162 [2021-11-12 22:53:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:55,446 INFO L225 Difference]: With dead ends: 2972 [2021-11-12 22:53:55,447 INFO L226 Difference]: Without dead ends: 2970 [2021-11-12 22:53:55,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:55,450 INFO L933 BasicCegarLoop]: 2379 mSDtfsCounter, 2234 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:55,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 7133 Invalid, 2 Unknown, 0 Unchecked, 43.50ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.44ms Time] [2021-11-12 22:53:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-11-12 22:53:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2970. [2021-11-12 22:53:55,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 1924 states have (on average 1.2073804573804574) internal successors, (2323), 1988 states have internal predecessors, (2323), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:53:55,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4029 transitions. [2021-11-12 22:53:55,932 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4029 transitions. Word has length 162 [2021-11-12 22:53:55,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:55,932 INFO L470 AbstractCegarLoop]: Abstraction has 2970 states and 4029 transitions. [2021-11-12 22:53:55,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2021-11-12 22:53:55,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4029 transitions. [2021-11-12 22:53:55,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-12 22:53:55,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:55,935 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:55,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:56,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,160 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash 292960699, now seen corresponding path program 1 times [2021-11-12 22:53:56,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:56,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165479340] [2021-11-12 22:53:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:56,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:56,162 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:56,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 22:53:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:53:57,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:53:57,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:53:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:58,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:53:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:53:58,616 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:53:58,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165479340] [2021-11-12 22:53:58,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165479340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:53:58,616 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:53:58,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:53:58,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547112352] [2021-11-12 22:53:58,617 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:53:58,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:53:58,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:53:58,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:53:58,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:53:58,618 INFO L87 Difference]: Start difference. First operand 2970 states and 4029 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:53:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:53:58,956 INFO L93 Difference]: Finished difference Result 2970 states and 4029 transitions. [2021-11-12 22:53:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:53:58,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 168 [2021-11-12 22:53:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:53:58,968 INFO L225 Difference]: With dead ends: 2970 [2021-11-12 22:53:58,968 INFO L226 Difference]: Without dead ends: 2968 [2021-11-12 22:53:58,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:53:58,971 INFO L933 BasicCegarLoop]: 2377 mSDtfsCounter, 2226 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.46ms IncrementalHoareTripleChecker+Time [2021-11-12 22:53:58,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2228 Valid, 7127 Invalid, 2 Unknown, 0 Unchecked, 10.76ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.46ms Time] [2021-11-12 22:53:58,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-11-12 22:53:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2968. [2021-11-12 22:53:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 1923 states have (on average 1.2069682787311493) internal successors, (2321), 1986 states have internal predecessors, (2321), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:53:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4027 transitions. [2021-11-12 22:53:59,549 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4027 transitions. Word has length 168 [2021-11-12 22:53:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:53:59,550 INFO L470 AbstractCegarLoop]: Abstraction has 2968 states and 4027 transitions. [2021-11-12 22:53:59,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:53:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4027 transitions. [2021-11-12 22:53:59,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-12 22:53:59,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:53:59,554 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:53:59,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-12 22:53:59,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:53:59,770 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:53:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:53:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash 888255373, now seen corresponding path program 1 times [2021-11-12 22:53:59,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:53:59,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693853965] [2021-11-12 22:53:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:53:59,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:53:59,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:53:59,773 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:53:59,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 22:54:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:00,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:00,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:54:01,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:54:02,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:02,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693853965] [2021-11-12 22:54:02,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693853965] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:02,351 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:02,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:54:02,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137955509] [2021-11-12 22:54:02,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:02,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:02,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:02,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:02,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:02,353 INFO L87 Difference]: Start difference. First operand 2968 states and 4027 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2021-11-12 22:54:02,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:02,797 INFO L93 Difference]: Finished difference Result 2968 states and 4027 transitions. [2021-11-12 22:54:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:02,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 174 [2021-11-12 22:54:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:02,806 INFO L225 Difference]: With dead ends: 2968 [2021-11-12 22:54:02,806 INFO L226 Difference]: Without dead ends: 2966 [2021-11-12 22:54:02,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:02,810 INFO L933 BasicCegarLoop]: 2375 mSDtfsCounter, 2221 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:02,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 4748 Invalid, 2 Unknown, 0 Unchecked, 9.61ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.71ms Time] [2021-11-12 22:54:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-11-12 22:54:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2966. [2021-11-12 22:54:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1922 states have (on average 1.2065556711758585) internal successors, (2319), 1984 states have internal predecessors, (2319), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-12 22:54:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4025 transitions. [2021-11-12 22:54:03,273 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4025 transitions. Word has length 174 [2021-11-12 22:54:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:03,273 INFO L470 AbstractCegarLoop]: Abstraction has 2966 states and 4025 transitions. [2021-11-12 22:54:03,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2021-11-12 22:54:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4025 transitions. [2021-11-12 22:54:03,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-12 22:54:03,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:03,276 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-12 22:54:03,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:03,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:03,477 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:03,478 INFO L85 PathProgramCache]: Analyzing trace with hash 902084397, now seen corresponding path program 1 times [2021-11-12 22:54:03,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:03,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359459780] [2021-11-12 22:54:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:03,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:03,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:03,480 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:03,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 22:54:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:04,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:04,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:54:05,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 22:54:06,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:06,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359459780] [2021-11-12 22:54:06,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359459780] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:06,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:06,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 22:54:06,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803401744] [2021-11-12 22:54:06,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:06,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:54:06,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:54:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:54:06,164 INFO L87 Difference]: Start difference. First operand 2966 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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) [2021-11-12 22:54:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:06,567 INFO L93 Difference]: Finished difference Result 2966 states and 4025 transitions. [2021-11-12 22:54:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:06,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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 180 [2021-11-12 22:54:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:06,575 INFO L225 Difference]: With dead ends: 2966 [2021-11-12 22:54:06,575 INFO L226 Difference]: Without dead ends: 2794 [2021-11-12 22:54:06,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:54:06,578 INFO L933 BasicCegarLoop]: 2374 mSDtfsCounter, 2209 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:06,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 4748 Invalid, 1 Unknown, 0 Unchecked, 9.09ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.41ms Time] [2021-11-12 22:54:06,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2021-11-12 22:54:07,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2794. [2021-11-12 22:54:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 1819 states have (on average 1.2166025288620121) internal successors, (2213), 1879 states have internal predecessors, (2213), 805 states have call successors, (805), 165 states have call predecessors, (805), 165 states have return successors, (805), 790 states have call predecessors, (805), 805 states have call successors, (805) [2021-11-12 22:54:07,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3823 transitions. [2021-11-12 22:54:07,077 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3823 transitions. Word has length 180 [2021-11-12 22:54:07,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:07,078 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3823 transitions. [2021-11-12 22:54:07,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 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) [2021-11-12 22:54:07,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3823 transitions. [2021-11-12 22:54:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-12 22:54:07,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:07,081 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:07,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:07,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:07,281 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:07,282 INFO L85 PathProgramCache]: Analyzing trace with hash -527454335, now seen corresponding path program 1 times [2021-11-12 22:54:07,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:07,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427477623] [2021-11-12 22:54:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:07,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:07,285 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:07,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 22:54:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:09,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:54:09,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-12 22:54:09,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-12 22:54:10,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:10,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427477623] [2021-11-12 22:54:10,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427477623] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:10,420 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:10,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 22:54:10,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230051935] [2021-11-12 22:54:10,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:10,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:54:10,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:10,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:54:10,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:54:10,423 INFO L87 Difference]: Start difference. First operand 2794 states and 3823 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:54:13,467 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 [] [2021-11-12 22:54:14,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:14,065 INFO L93 Difference]: Finished difference Result 5669 states and 7759 transitions. [2021-11-12 22:54:14,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:14,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 224 [2021-11-12 22:54:14,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:14,076 INFO L225 Difference]: With dead ends: 5669 [2021-11-12 22:54:14,077 INFO L226 Difference]: Without dead ends: 2894 [2021-11-12 22:54:14,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:54:14,090 INFO L933 BasicCegarLoop]: 2253 mSDtfsCounter, 163 mSDsluCounter, 11081 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2886.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 13334 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.23ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2987.80ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:14,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 13334 Invalid, 105 Unknown, 0 Unchecked, 20.23ms Time], IncrementalHoareTripleChecker [61 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2987.80ms Time] [2021-11-12 22:54:14,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-11-12 22:54:14,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2797. [2021-11-12 22:54:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1822 states have (on average 1.2162458836443468) internal successors, (2216), 1882 states have internal predecessors, (2216), 805 states have call successors, (805), 165 states have call predecessors, (805), 165 states have return successors, (805), 790 states have call predecessors, (805), 805 states have call successors, (805) [2021-11-12 22:54:14,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3826 transitions. [2021-11-12 22:54:14,433 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3826 transitions. Word has length 224 [2021-11-12 22:54:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:14,434 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3826 transitions. [2021-11-12 22:54:14,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:54:14,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3826 transitions. [2021-11-12 22:54:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-12 22:54:14,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:14,437 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:14,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:14,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:14,660 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1045579706, now seen corresponding path program 1 times [2021-11-12 22:54:14,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:14,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080877004] [2021-11-12 22:54:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:14,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:14,663 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:14,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 22:54:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:16,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:54:16,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-11-12 22:54:17,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-12 22:54:18,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:18,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080877004] [2021-11-12 22:54:18,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080877004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:18,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:18,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-12 22:54:18,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34760805] [2021-11-12 22:54:18,158 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:18,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 22:54:18,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:18,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 22:54:18,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:54:18,159 INFO L87 Difference]: Start difference. First operand 2797 states and 3826 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 22:54:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:18,775 INFO L93 Difference]: Finished difference Result 5644 states and 7724 transitions. [2021-11-12 22:54:18,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:54:18,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 245 [2021-11-12 22:54:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:18,784 INFO L225 Difference]: With dead ends: 5644 [2021-11-12 22:54:18,785 INFO L226 Difference]: Without dead ends: 2866 [2021-11-12 22:54:18,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:54:18,799 INFO L933 BasicCegarLoop]: 2252 mSDtfsCounter, 52 mSDsluCounter, 13371 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 15623 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.03ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:18,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 15623 Invalid, 32 Unknown, 0 Unchecked, 16.03ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 188.94ms Time] [2021-11-12 22:54:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-11-12 22:54:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2802. [2021-11-12 22:54:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1826 states have (on average 1.2157721796276013) internal successors, (2220), 1886 states have internal predecessors, (2220), 805 states have call successors, (805), 165 states have call predecessors, (805), 166 states have return successors, (808), 791 states have call predecessors, (808), 805 states have call successors, (808) [2021-11-12 22:54:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3833 transitions. [2021-11-12 22:54:19,185 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3833 transitions. Word has length 245 [2021-11-12 22:54:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:19,185 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3833 transitions. [2021-11-12 22:54:19,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 22:54:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3833 transitions. [2021-11-12 22:54:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-12 22:54:19,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:19,188 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-12 22:54:19,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:19,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:19,412 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -311259912, now seen corresponding path program 1 times [2021-11-12 22:54:19,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:19,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147801749] [2021-11-12 22:54:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:19,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:19,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:19,415 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:19,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 22:54:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:21,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:21,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-12 22:54:21,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 22:54:22,390 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:22,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147801749] [2021-11-12 22:54:22,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147801749] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:22,390 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:54:22,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:54:22,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697095896] [2021-11-12 22:54:22,391 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:22,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:22,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:22,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:22,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:22,392 INFO L87 Difference]: Start difference. First operand 2802 states and 3833 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 22:54:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:23,250 INFO L93 Difference]: Finished difference Result 5589 states and 7646 transitions. [2021-11-12 22:54:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:23,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 261 [2021-11-12 22:54:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:23,265 INFO L225 Difference]: With dead ends: 5589 [2021-11-12 22:54:23,265 INFO L226 Difference]: Without dead ends: 2806 [2021-11-12 22:54:23,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:54:23,275 INFO L933 BasicCegarLoop]: 2172 mSDtfsCounter, 4 mSDsluCounter, 4338 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 524.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 535.93ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:23,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6510 Invalid, 13 Unknown, 0 Unchecked, 6.80ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 535.93ms Time] [2021-11-12 22:54:23,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2021-11-12 22:54:23,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2806. [2021-11-12 22:54:23,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 1830 states have (on average 1.2153005464480875) internal successors, (2224), 1890 states have internal predecessors, (2224), 805 states have call successors, (805), 165 states have call predecessors, (805), 166 states have return successors, (808), 791 states have call predecessors, (808), 805 states have call successors, (808) [2021-11-12 22:54:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3837 transitions. [2021-11-12 22:54:23,642 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3837 transitions. Word has length 261 [2021-11-12 22:54:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:23,643 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3837 transitions. [2021-11-12 22:54:23,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 22:54:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3837 transitions. [2021-11-12 22:54:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-12 22:54:23,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:23,647 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:23,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:23,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:23,860 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:23,860 INFO L85 PathProgramCache]: Analyzing trace with hash -551727112, now seen corresponding path program 1 times [2021-11-12 22:54:23,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:23,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352017644] [2021-11-12 22:54:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:23,863 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:23,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:23,864 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:23,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 22:54:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:25,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:25,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-12 22:54:26,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 22:54:27,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:27,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352017644] [2021-11-12 22:54:27,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352017644] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:27,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1774520988] [2021-11-12 22:54:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:27,353 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:27,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:27,355 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:27,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-11-12 22:54:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:30,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:30,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-12 22:54:31,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-12 22:54:31,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1774520988] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:31,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692735428] [2021-11-12 22:54:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:31,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:54:31,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:54:31,805 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:54:31,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-12 22:54:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:54:33,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-12 22:54:33,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-11-12 22:54:34,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692735428] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:34,185 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:54:34,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-12 22:54:34,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071647743] [2021-11-12 22:54:34,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:34,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:54:34,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:34,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:54:34,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:54:34,187 INFO L87 Difference]: Start difference. First operand 2806 states and 3837 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:54:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:37,119 INFO L93 Difference]: Finished difference Result 7058 states and 9773 transitions. [2021-11-12 22:54:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:54:37,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 267 [2021-11-12 22:54:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:37,134 INFO L225 Difference]: With dead ends: 7058 [2021-11-12 22:54:37,134 INFO L226 Difference]: Without dead ends: 4271 [2021-11-12 22:54:37,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1596 GetRequests, 1588 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:54:37,144 INFO L933 BasicCegarLoop]: 2774 mSDtfsCounter, 778 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2035.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 7659 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.92ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2162.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:37,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 7659 Invalid, 143 Unknown, 0 Unchecked, 13.92ms Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2162.62ms Time] [2021-11-12 22:54:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2021-11-12 22:54:37,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 2815. [2021-11-12 22:54:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 1837 states have (on average 1.215568862275449) internal successors, (2233), 1897 states have internal predecessors, (2233), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 793 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-12 22:54:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3850 transitions. [2021-11-12 22:54:37,729 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3850 transitions. Word has length 267 [2021-11-12 22:54:37,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:37,731 INFO L470 AbstractCegarLoop]: Abstraction has 2815 states and 3850 transitions. [2021-11-12 22:54:37,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-12 22:54:37,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3850 transitions. [2021-11-12 22:54:37,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-12 22:54:37,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:37,735 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:37,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:37,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:38,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:38,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:38,356 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1969258456, now seen corresponding path program 1 times [2021-11-12 22:54:38,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:38,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724890853] [2021-11-12 22:54:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:38,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:38,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:38,360 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:38,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 22:54:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:40,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:40,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2021-11-12 22:54:41,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-11-12 22:54:42,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:42,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724890853] [2021-11-12 22:54:42,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724890853] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:42,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490651506] [2021-11-12 22:54:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:42,362 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:42,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:42,363 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:42,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-11-12 22:54:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:45,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:45,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2021-11-12 22:54:46,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-11-12 22:54:47,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [490651506] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:47,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116295726] [2021-11-12 22:54:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:47,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:54:47,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:54:47,168 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:54:47,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-12 22:54:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:48,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:54:48,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-12 22:54:49,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2021-11-12 22:54:50,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116295726] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:54:50,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:54:50,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 18 [2021-11-12 22:54:50,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356631263] [2021-11-12 22:54:50,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:54:50,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:54:50,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:54:50,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:54:50,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:54:50,164 INFO L87 Difference]: Start difference. First operand 2815 states and 3850 transitions. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-12 22:54:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:54:52,153 INFO L93 Difference]: Finished difference Result 6052 states and 8299 transitions. [2021-11-12 22:54:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 22:54:52,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 323 [2021-11-12 22:54:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:54:52,162 INFO L225 Difference]: With dead ends: 6052 [2021-11-12 22:54:52,163 INFO L226 Difference]: Without dead ends: 3256 [2021-11-12 22:54:52,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1946 GetRequests, 1922 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2021-11-12 22:54:52,174 INFO L933 BasicCegarLoop]: 2493 mSDtfsCounter, 1420 mSDsluCounter, 19524 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 788.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 22017 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.49ms SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 926.36ms IncrementalHoareTripleChecker+Time [2021-11-12 22:54:52,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 22017 Invalid, 555 Unknown, 0 Unchecked, 29.49ms Time], IncrementalHoareTripleChecker [414 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 926.36ms Time] [2021-11-12 22:54:52,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2021-11-12 22:54:52,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 2819. [2021-11-12 22:54:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1841 states have (on average 1.2151004888647474) internal successors, (2237), 1900 states have internal predecessors, (2237), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 794 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-12 22:54:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3854 transitions. [2021-11-12 22:54:52,638 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3854 transitions. Word has length 323 [2021-11-12 22:54:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:54:52,640 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3854 transitions. [2021-11-12 22:54:52,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-12 22:54:52,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3854 transitions. [2021-11-12 22:54:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-12 22:54:52,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:54:52,645 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:54:52,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:52,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-11-12 22:54:53,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 22:54:53,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:54:53,288 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:54:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:54:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash 936973369, now seen corresponding path program 1 times [2021-11-12 22:54:53,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:54:53,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676669806] [2021-11-12 22:54:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:53,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:54:53,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:54:53,291 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:54:53,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 22:54:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:54:55,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:54:55,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:54:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 87 proven. 5 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-12 22:54:56,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:54:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-12 22:54:57,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:54:57,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676669806] [2021-11-12 22:54:57,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676669806] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:54:57,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1856490320] [2021-11-12 22:54:57,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:54:57,161 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:54:57,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:54:57,164 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:54:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-12 22:55:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:00,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:00,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 87 proven. 5 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-12 22:55:01,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-12 22:55:01,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1856490320] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:01,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786524676] [2021-11-12 22:55:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:01,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:55:01,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:01,696 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:55:01,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-12 22:55:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:02,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:55:02,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-12 22:55:03,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-12 22:55:04,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786524676] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:04,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:55:04,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 14 [2021-11-12 22:55:04,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349193092] [2021-11-12 22:55:04,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:04,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:55:04,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:55:04,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:55:04,264 INFO L87 Difference]: Start difference. First operand 2819 states and 3854 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-12 22:55:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:08,458 INFO L93 Difference]: Finished difference Result 6162 states and 8693 transitions. [2021-11-12 22:55:08,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-12 22:55:08,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 335 [2021-11-12 22:55:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:08,476 INFO L225 Difference]: With dead ends: 6162 [2021-11-12 22:55:08,476 INFO L226 Difference]: Without dead ends: 6160 [2021-11-12 22:55:08,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2028 GetRequests, 1997 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 22:55:08,480 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 1761 mSDsluCounter, 17788 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1688.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 21465 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.40ms SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1979.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:08,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 21465 Invalid, 1012 Unknown, 0 Unchecked, 36.40ms Time], IncrementalHoareTripleChecker [707 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1979.75ms Time] [2021-11-12 22:55:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2021-11-12 22:55:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 2819. [2021-11-12 22:55:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1841 states have (on average 1.2145573058120587) internal successors, (2236), 1900 states have internal predecessors, (2236), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 794 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-12 22:55:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3853 transitions. [2021-11-12 22:55:09,084 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3853 transitions. Word has length 335 [2021-11-12 22:55:09,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:09,085 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3853 transitions. [2021-11-12 22:55:09,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-12 22:55:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3853 transitions. [2021-11-12 22:55:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-12 22:55:09,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:09,090 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-12 22:55:09,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:09,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:09,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:09,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:09,704 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:55:09,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2060365720, now seen corresponding path program 1 times [2021-11-12 22:55:09,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:09,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905092386] [2021-11-12 22:55:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:09,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:09,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:09,708 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:09,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-12 22:55:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:12,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:12,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-11-12 22:55:12,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-12 22:55:13,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:13,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905092386] [2021-11-12 22:55:13,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905092386] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:13,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1414835010] [2021-11-12 22:55:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:13,916 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:13,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:13,917 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-11-12 22:55:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:15,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:55:15,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:16,215 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-12 22:55:16,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2021-11-12 22:55:17,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1414835010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:17,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:55:17,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [5, 5] total 22 [2021-11-12 22:55:17,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783759882] [2021-11-12 22:55:17,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:17,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-12 22:55:17,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-12 22:55:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-11-12 22:55:17,365 INFO L87 Difference]: Start difference. First operand 2819 states and 3853 transitions. Second operand has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-12 22:55:21,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:21,271 INFO L93 Difference]: Finished difference Result 7391 states and 10240 transitions. [2021-11-12 22:55:21,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 22:55:21,272 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) Word has length 347 [2021-11-12 22:55:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:21,285 INFO L225 Difference]: With dead ends: 7391 [2021-11-12 22:55:21,285 INFO L226 Difference]: Without dead ends: 4591 [2021-11-12 22:55:21,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2021-11-12 22:55:21,296 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 2082 mSDsluCounter, 26423 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1806.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 29181 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.44ms SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2064.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:21,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2207 Valid, 29181 Invalid, 1127 Unknown, 0 Unchecked, 46.44ms Time], IncrementalHoareTripleChecker [629 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2064.59ms Time] [2021-11-12 22:55:21,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-11-12 22:55:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 3291. [2021-11-12 22:55:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 2175 states have (on average 1.2165517241379311) internal successors, (2646), 2243 states have internal predecessors, (2646), 943 states have call successors, (943), 165 states have call predecessors, (943), 168 states have return successors, (949), 931 states have call predecessors, (949), 943 states have call successors, (949) [2021-11-12 22:55:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 4538 transitions. [2021-11-12 22:55:21,978 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 4538 transitions. Word has length 347 [2021-11-12 22:55:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:21,979 INFO L470 AbstractCegarLoop]: Abstraction has 3291 states and 4538 transitions. [2021-11-12 22:55:21,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-12 22:55:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 4538 transitions. [2021-11-12 22:55:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-12 22:55:21,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:21,982 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-12 22:55:22,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:22,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:22,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:22,383 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:55:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:22,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1086286432, now seen corresponding path program 1 times [2021-11-12 22:55:22,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:22,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979339672] [2021-11-12 22:55:22,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:22,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:22,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:22,387 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:22,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-12 22:55:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:24,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:24,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-12 22:55:25,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-12 22:55:26,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:26,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979339672] [2021-11-12 22:55:26,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979339672] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:26,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [742628160] [2021-11-12 22:55:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:26,430 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:26,431 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:26,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-12 22:55:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:29,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:29,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:30,593 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-12 22:55:30,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-12 22:55:31,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [742628160] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:31,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754556854] [2021-11-12 22:55:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:31,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:55:31,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:31,379 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:55:31,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-12 22:55:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:32,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:55:32,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-12 22:55:33,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-12 22:55:34,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754556854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:55:34,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:55:34,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-12 22:55:34,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559727991] [2021-11-12 22:55:34,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:34,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:55:34,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:34,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:55:34,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:55:34,461 INFO L87 Difference]: Start difference. First operand 3291 states and 4538 transitions. Second operand has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-12 22:55:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:35,843 INFO L93 Difference]: Finished difference Result 6577 states and 9074 transitions. [2021-11-12 22:55:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:55:35,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 352 [2021-11-12 22:55:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:35,862 INFO L225 Difference]: With dead ends: 6577 [2021-11-12 22:55:35,862 INFO L226 Difference]: Without dead ends: 3305 [2021-11-12 22:55:35,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2110 GetRequests, 2093 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:55:35,874 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 17 mSDsluCounter, 14993 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 582.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17145 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.58ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 629.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:35,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 17145 Invalid, 267 Unknown, 0 Unchecked, 21.58ms Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 629.70ms Time] [2021-11-12 22:55:35,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2021-11-12 22:55:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3297. [2021-11-12 22:55:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2181 states have (on average 1.2159559834938103) internal successors, (2652), 2249 states have internal predecessors, (2652), 943 states have call successors, (943), 165 states have call predecessors, (943), 168 states have return successors, (949), 931 states have call predecessors, (949), 943 states have call successors, (949) [2021-11-12 22:55:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 4544 transitions. [2021-11-12 22:55:36,428 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 4544 transitions. Word has length 352 [2021-11-12 22:55:36,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:36,428 INFO L470 AbstractCegarLoop]: Abstraction has 3297 states and 4544 transitions. [2021-11-12 22:55:36,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-12 22:55:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 4544 transitions. [2021-11-12 22:55:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-12 22:55:36,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:36,431 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:55:36,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2021-11-12 22:55:36,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-11-12 22:55:36,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:37,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:37,033 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:55:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:37,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1117876722, now seen corresponding path program 1 times [2021-11-12 22:55:37,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:37,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666976653] [2021-11-12 22:55:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:37,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:37,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:37,036 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:37,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-12 22:55:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:39,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:39,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 311 proven. 5 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-12 22:55:40,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 22:55:41,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:41,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666976653] [2021-11-12 22:55:41,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666976653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:41,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [705110947] [2021-11-12 22:55:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:41,100 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:41,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:41,101 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-12 22:55:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:44,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:44,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 311 proven. 5 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-12 22:55:45,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-12 22:55:45,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [705110947] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:45,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557913281] [2021-11-12 22:55:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:45,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:55:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:55:45,924 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:55:45,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-12 22:55:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:47,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:55:47,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-12 22:55:48,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-12 22:55:49,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557913281] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:55:49,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:55:49,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 19 [2021-11-12 22:55:49,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266939833] [2021-11-12 22:55:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:55:49,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:55:49,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:55:49,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:55:49,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:55:49,339 INFO L87 Difference]: Start difference. First operand 3297 states and 4544 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:55:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:55:50,884 INFO L93 Difference]: Finished difference Result 6986 states and 9649 transitions. [2021-11-12 22:55:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:55:50,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 370 [2021-11-12 22:55:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:55:50,898 INFO L225 Difference]: With dead ends: 6986 [2021-11-12 22:55:50,898 INFO L226 Difference]: Without dead ends: 3706 [2021-11-12 22:55:50,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2217 GetRequests, 2198 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:55:50,905 INFO L933 BasicCegarLoop]: 2476 mSDtfsCounter, 369 mSDsluCounter, 14504 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 643.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 16980 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.16ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 704.42ms IncrementalHoareTripleChecker+Time [2021-11-12 22:55:50,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 16980 Invalid, 325 Unknown, 0 Unchecked, 23.16ms Time], IncrementalHoareTripleChecker [47 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 704.42ms Time] [2021-11-12 22:55:50,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2021-11-12 22:55:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3311. [2021-11-12 22:55:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 2191 states have (on average 1.2149703331811958) internal successors, (2662), 2259 states have internal predecessors, (2662), 945 states have call successors, (945), 165 states have call predecessors, (945), 170 states have return successors, (954), 935 states have call predecessors, (954), 945 states have call successors, (954) [2021-11-12 22:55:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 4561 transitions. [2021-11-12 22:55:51,403 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 4561 transitions. Word has length 370 [2021-11-12 22:55:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:55:51,404 INFO L470 AbstractCegarLoop]: Abstraction has 3311 states and 4561 transitions. [2021-11-12 22:55:51,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-12 22:55:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 4561 transitions. [2021-11-12 22:55:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-12 22:55:51,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:55:51,407 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:55:51,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:51,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:51,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-12 22:55:52,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:55:52,008 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_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:55:52,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:55:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1879607884, now seen corresponding path program 1 times [2021-11-12 22:55:52,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:55:52,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491980750] [2021-11-12 22:55:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:52,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:55:52,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:55:52,011 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:55:52,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-12 22:55:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:54,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:54,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:55:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 296 proven. 5 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-11-12 22:55:55,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:55:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-12 22:55:56,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:55:56,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491980750] [2021-11-12 22:55:56,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491980750] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:55:56,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1059347996] [2021-11-12 22:55:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:55:56,255 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:55:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:55:56,265 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:55:56,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2021-11-12 22:55:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:55:59,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:55:59,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 296 proven. 5 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-11-12 22:56:00,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-12 22:56:01,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1059347996] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:01,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119488660] [2021-11-12 22:56:01,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:01,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:56:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:01,148 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:56:01,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-12 22:56:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:02,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1931 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 22:56:02,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2021-11-12 22:56:04,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2021-11-12 22:56:06,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119488660] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:06,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:56:06,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-12 22:56:06,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388806894] [2021-11-12 22:56:06,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:06,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:06,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:06,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:06,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:56:06,182 INFO L87 Difference]: Start difference. First operand 3311 states and 4561 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-12 22:56:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:06,868 INFO L93 Difference]: Finished difference Result 3538 states and 4801 transitions. [2021-11-12 22:56:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:06,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 371 [2021-11-12 22:56:06,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:06,878 INFO L225 Difference]: With dead ends: 3538 [2021-11-12 22:56:06,878 INFO L226 Difference]: Without dead ends: 3536 [2021-11-12 22:56:06,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2222 GetRequests, 2209 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:56:06,880 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 1009 mSDsluCounter, 7886 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 10130 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:06,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 10130 Invalid, 8 Unknown, 0 Unchecked, 15.37ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 17.56ms Time] [2021-11-12 22:56:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2021-11-12 22:56:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3534. [2021-11-12 22:56:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2337 states have (on average 1.2075310226786478) internal successors, (2822), 2409 states have internal predecessors, (2822), 983 states have call successors, (983), 205 states have call predecessors, (983), 210 states have return successors, (991), 973 states have call predecessors, (991), 983 states have call successors, (991) [2021-11-12 22:56:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4796 transitions. [2021-11-12 22:56:07,480 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4796 transitions. Word has length 371 [2021-11-12 22:56:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:07,481 INFO L470 AbstractCegarLoop]: Abstraction has 3534 states and 4796 transitions. [2021-11-12 22:56:07,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-12 22:56:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4796 transitions. [2021-11-12 22:56:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-12 22:56:07,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:07,486 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 22:56:07,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:07,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2021-11-12 22:56:07,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:08,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:56:08,097 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:56:08,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1611754519, now seen corresponding path program 1 times [2021-11-12 22:56:08,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:08,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094058218] [2021-11-12 22:56:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:08,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:08,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:08,101 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:08,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-12 22:56:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:10,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 2008 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:10,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 344 proven. 5 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-12 22:56:11,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2021-11-12 22:56:12,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:12,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094058218] [2021-11-12 22:56:12,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094058218] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:12,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [411294948] [2021-11-12 22:56:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:12,465 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:12,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:56:12,466 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:56:12,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2021-11-12 22:56:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:15,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2008 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:15,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 344 proven. 5 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-12 22:56:16,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2021-11-12 22:56:17,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [411294948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:17,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536087691] [2021-11-12 22:56:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:17,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:56:17,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:17,813 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:56:17,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-12 22:56:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:19,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 2008 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:56:19,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-12 22:56:20,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2021-11-12 22:56:20,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536087691] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:20,929 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:56:20,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-12 22:56:20,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289110888] [2021-11-12 22:56:20,930 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:20,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:20,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:20,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:20,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:56:20,932 INFO L87 Difference]: Start difference. First operand 3534 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:56:23,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:23,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:23,793 INFO L93 Difference]: Finished difference Result 3534 states and 4796 transitions. [2021-11-12 22:56:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:56:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 409 [2021-11-12 22:56:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:23,805 INFO L225 Difference]: With dead ends: 3534 [2021-11-12 22:56:23,805 INFO L226 Difference]: Without dead ends: 3532 [2021-11-12 22:56:23,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2450 GetRequests, 2437 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:56:23,808 INFO L933 BasicCegarLoop]: 2335 mSDtfsCounter, 1137 mSDsluCounter, 10551 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2134.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 12886 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2136.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:23,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 12886 Invalid, 9 Unknown, 0 Unchecked, 17.61ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2136.17ms Time] [2021-11-12 22:56:23,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2021-11-12 22:56:24,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3532. [2021-11-12 22:56:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2336 states have (on average 1.2067636986301369) internal successors, (2819), 2407 states have internal predecessors, (2819), 983 states have call successors, (983), 205 states have call predecessors, (983), 210 states have return successors, (991), 973 states have call predecessors, (991), 983 states have call successors, (991) [2021-11-12 22:56:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4793 transitions. [2021-11-12 22:56:24,469 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4793 transitions. Word has length 409 [2021-11-12 22:56:24,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:24,470 INFO L470 AbstractCegarLoop]: Abstraction has 3532 states and 4793 transitions. [2021-11-12 22:56:24,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 22:56:24,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4793 transitions. [2021-11-12 22:56:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-12 22:56:24,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:24,478 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:24,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:24,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:24,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:25,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:56:25,079 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:56:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:25,080 INFO L85 PathProgramCache]: Analyzing trace with hash -926729527, now seen corresponding path program 1 times [2021-11-12 22:56:25,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:25,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136302204] [2021-11-12 22:56:25,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:25,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:25,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:25,084 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:25,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-12 22:56:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:27,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:27,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-12 22:56:28,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-12 22:56:30,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:30,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136302204] [2021-11-12 22:56:30,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136302204] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:30,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [648488047] [2021-11-12 22:56:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:30,104 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:56:30,105 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:56:30,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-12 22:56:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:31,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:56:31,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-11-12 22:56:34,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-11-12 22:56:35,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [648488047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:35,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:56:35,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [5, 5] total 13 [2021-11-12 22:56:35,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473071550] [2021-11-12 22:56:35,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:35,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:56:35,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:35,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:56:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:56:35,944 INFO L87 Difference]: Start difference. First operand 3532 states and 4793 transitions. Second operand has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) [2021-11-12 22:56:38,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:56:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:45,433 INFO L93 Difference]: Finished difference Result 7539 states and 10253 transitions. [2021-11-12 22:56:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:56:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) Word has length 456 [2021-11-12 22:56:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:45,448 INFO L225 Difference]: With dead ends: 7539 [2021-11-12 22:56:45,448 INFO L226 Difference]: Without dead ends: 4026 [2021-11-12 22:56:45,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1822 GetRequests, 1809 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:56:45,467 INFO L933 BasicCegarLoop]: 2484 mSDtfsCounter, 1879 mSDsluCounter, 8091 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7806.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 10575 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.85ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8445.68ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:45,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 10575 Invalid, 1848 Unknown, 0 Unchecked, 40.85ms Time], IncrementalHoareTripleChecker [3 Valid, 1844 Invalid, 1 Unknown, 0 Unchecked, 8445.68ms Time] [2021-11-12 22:56:45,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2021-11-12 22:56:46,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 4026. [2021-11-12 22:56:46,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 2684 states have (on average 1.2201937406855439) internal successors, (3275), 2769 states have internal predecessors, (3275), 1087 states have call successors, (1087), 247 states have call predecessors, (1087), 252 states have return successors, (1095), 1071 states have call predecessors, (1095), 1087 states have call successors, (1095) [2021-11-12 22:56:46,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5457 transitions. [2021-11-12 22:56:46,154 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5457 transitions. Word has length 456 [2021-11-12 22:56:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:46,155 INFO L470 AbstractCegarLoop]: Abstraction has 4026 states and 5457 transitions. [2021-11-12 22:56:46,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) [2021-11-12 22:56:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5457 transitions. [2021-11-12 22:56:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-12 22:56:46,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:46,163 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:46,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:46,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:46,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,568 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:56:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash -926669945, now seen corresponding path program 1 times [2021-11-12 22:56:46,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:46,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353342271] [2021-11-12 22:56:46,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:46,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:46,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:46,572 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:46,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-12 22:56:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:49,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:49,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-12 22:56:50,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-12 22:56:51,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:51,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353342271] [2021-11-12 22:56:51,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353342271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:51,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2117455802] [2021-11-12 22:56:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:51,472 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:56:51,472 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:56:51,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-12 22:56:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:54,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:56:54,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-12 22:56:56,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-12 22:56:57,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2117455802] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:56:57,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235260278] [2021-11-12 22:56:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:57,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:56:57,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:57,028 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:56:57,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-12 22:56:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:58,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:56:58,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-12 22:56:59,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2021-11-12 22:57:00,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235260278] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:57:00,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 22:57:00,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5, 6] total 13 [2021-11-12 22:57:00,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494662896] [2021-11-12 22:57:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:00,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:00,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:57:00,654 INFO L87 Difference]: Start difference. First operand 4026 states and 5457 transitions. Second operand has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-12 22:57:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:02,683 INFO L93 Difference]: Finished difference Result 8739 states and 11908 transitions. [2021-11-12 22:57:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:57:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 456 [2021-11-12 22:57:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:02,702 INFO L225 Difference]: With dead ends: 8739 [2021-11-12 22:57:02,703 INFO L226 Difference]: Without dead ends: 4731 [2021-11-12 22:57:02,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2733 GetRequests, 2720 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:57:02,718 INFO L933 BasicCegarLoop]: 3360 mSDtfsCounter, 769 mSDsluCounter, 11625 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 811.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 14985 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.30ms SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 923.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:02,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 14985 Invalid, 482 Unknown, 0 Unchecked, 26.30ms Time], IncrementalHoareTripleChecker [251 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 923.58ms Time] [2021-11-12 22:57:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2021-11-12 22:57:03,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 4025. [2021-11-12 22:57:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 2684 states have (on average 1.2198211624441133) internal successors, (3274), 2768 states have internal predecessors, (3274), 1086 states have call successors, (1086), 247 states have call predecessors, (1086), 252 states have return successors, (1094), 1071 states have call predecessors, (1094), 1086 states have call successors, (1094) [2021-11-12 22:57:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 5454 transitions. [2021-11-12 22:57:03,640 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 5454 transitions. Word has length 456 [2021-11-12 22:57:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:03,640 INFO L470 AbstractCegarLoop]: Abstraction has 4025 states and 5454 transitions. [2021-11-12 22:57:03,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-12 22:57:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 5454 transitions. [2021-11-12 22:57:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-11-12 22:57:03,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:03,651 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:03,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:03,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:04,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:04,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:04,276 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:57:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash -812370256, now seen corresponding path program 1 times [2021-11-12 22:57:04,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:04,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309541710] [2021-11-12 22:57:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:04,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:04,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:04,280 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:04,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-12 22:57:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:07,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:07,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2021-11-12 22:57:08,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2355 trivial. 0 not checked. [2021-11-12 22:57:10,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:10,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309541710] [2021-11-12 22:57:10,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309541710] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:10,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [528699062] [2021-11-12 22:57:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:10,387 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:10,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:57:10,387 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:57:10,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-12 22:57:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:11,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:57:11,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 2090 trivial. 0 not checked. [2021-11-12 22:57:13,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2360 trivial. 0 not checked. [2021-11-12 22:57:14,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [528699062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:14,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:57:14,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-12 22:57:14,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832434296] [2021-11-12 22:57:14,359 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:14,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:14,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:14,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:14,361 INFO L87 Difference]: Start difference. First operand 4025 states and 5454 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2021-11-12 22:57:15,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:15,066 INFO L93 Difference]: Finished difference Result 8035 states and 10894 transitions. [2021-11-12 22:57:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:57:15,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 625 [2021-11-12 22:57:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:15,085 INFO L225 Difference]: With dead ends: 8035 [2021-11-12 22:57:15,085 INFO L226 Difference]: Without dead ends: 4029 [2021-11-12 22:57:15,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2496 GetRequests, 2488 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:15,096 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 0 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.03ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:15,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4336 Invalid, 3 Unknown, 0 Unchecked, 6.90ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 32.03ms Time] [2021-11-12 22:57:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2021-11-12 22:57:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4029. [2021-11-12 22:57:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 2688 states have (on average 1.2194940476190477) internal successors, (3278), 2772 states have internal predecessors, (3278), 1086 states have call successors, (1086), 247 states have call predecessors, (1086), 252 states have return successors, (1094), 1071 states have call predecessors, (1094), 1086 states have call successors, (1094) [2021-11-12 22:57:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5458 transitions. [2021-11-12 22:57:15,743 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5458 transitions. Word has length 625 [2021-11-12 22:57:15,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:15,744 INFO L470 AbstractCegarLoop]: Abstraction has 4029 states and 5458 transitions. [2021-11-12 22:57:15,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2021-11-12 22:57:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5458 transitions. [2021-11-12 22:57:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-11-12 22:57:15,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:15,751 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:15,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:15,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:16,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:16,151 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:57:16,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1575691510, now seen corresponding path program 1 times [2021-11-12 22:57:16,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581917060] [2021-11-12 22:57:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:16,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:16,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:16,155 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:16,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-11-12 22:57:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:18,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:18,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2021-11-12 22:57:20,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-11-12 22:57:22,062 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:22,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581917060] [2021-11-12 22:57:22,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581917060] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:22,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1070855075] [2021-11-12 22:57:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:22,063 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:22,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:57:22,063 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:57:22,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2021-11-12 22:57:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:25,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:25,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2021-11-12 22:57:27,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-11-12 22:57:28,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1070855075] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:28,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425014003] [2021-11-12 22:57:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:28,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:28,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:57:28,997 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:57:29,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-12 22:57:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:30,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:57:30,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2332 trivial. 0 not checked. [2021-11-12 22:57:31,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2362 trivial. 0 not checked. [2021-11-12 22:57:32,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425014003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:32,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:57:32,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-12 22:57:32,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635635310] [2021-11-12 22:57:32,724 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:32,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:32,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:32,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:32,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:32,726 INFO L87 Difference]: Start difference. First operand 4029 states and 5458 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-12 22:57:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:34,169 INFO L93 Difference]: Finished difference Result 8075 states and 10976 transitions. [2021-11-12 22:57:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 627 [2021-11-12 22:57:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:34,196 INFO L225 Difference]: With dead ends: 8075 [2021-11-12 22:57:34,196 INFO L226 Difference]: Without dead ends: 4065 [2021-11-12 22:57:34,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3756 GetRequests, 3748 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:34,212 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 24 mSDsluCounter, 4298 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 721.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.00ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 773.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:34,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 6460 Invalid, 42 Unknown, 0 Unchecked, 9.00ms Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 773.82ms Time] [2021-11-12 22:57:34,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2021-11-12 22:57:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2021-11-12 22:57:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2716 states have (on average 1.218703976435935) internal successors, (3310), 2800 states have internal predecessors, (3310), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-12 22:57:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5506 transitions. [2021-11-12 22:57:34,921 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5506 transitions. Word has length 627 [2021-11-12 22:57:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:34,922 INFO L470 AbstractCegarLoop]: Abstraction has 4065 states and 5506 transitions. [2021-11-12 22:57:34,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-12 22:57:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5506 transitions. [2021-11-12 22:57:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2021-11-12 22:57:34,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:34,933 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:34,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-11-12 22:57:35,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:35,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:35,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:35,547 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:57:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:35,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1222389174, now seen corresponding path program 1 times [2021-11-12 22:57:35,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:35,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053222417] [2021-11-12 22:57:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:35,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:35,551 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:35,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-12 22:57:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:38,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:38,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-12 22:57:40,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-12 22:57:41,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:41,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053222417] [2021-11-12 22:57:41,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053222417] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:41,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1394563379] [2021-11-12 22:57:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:41,672 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:57:41,674 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:57:41,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-12 22:57:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:45,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:45,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-12 22:57:47,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-12 22:57:48,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1394563379] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:48,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768086627] [2021-11-12 22:57:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:48,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:48,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:57:48,772 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:57:48,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-12 22:57:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:50,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:57:50,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:51,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-12 22:57:51,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-12 22:57:52,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768086627] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:52,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:57:52,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-12 22:57:52,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672679263] [2021-11-12 22:57:52,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:52,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:57:52,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:52,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:57:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:57:52,676 INFO L87 Difference]: Start difference. First operand 4065 states and 5506 transitions. Second operand has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-12 22:57:53,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:53,402 INFO L93 Difference]: Finished difference Result 4065 states and 5506 transitions. [2021-11-12 22:57:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:57:53,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) Word has length 643 [2021-11-12 22:57:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:53,417 INFO L225 Difference]: With dead ends: 4065 [2021-11-12 22:57:53,418 INFO L226 Difference]: Without dead ends: 4063 [2021-11-12 22:57:53,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3854 GetRequests, 3841 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:57:53,421 INFO L933 BasicCegarLoop]: 2164 mSDtfsCounter, 41 mSDsluCounter, 10768 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 12932 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.20ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:53,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 12932 Invalid, 14 Unknown, 0 Unchecked, 13.20ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 27.55ms Time] [2021-11-12 22:57:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-11-12 22:57:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4063. [2021-11-12 22:57:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4063 states, 2715 states have (on average 1.21804788213628) internal successors, (3307), 2798 states have internal predecessors, (3307), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-12 22:57:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4063 states to 4063 states and 5503 transitions. [2021-11-12 22:57:54,094 INFO L78 Accepts]: Start accepts. Automaton has 4063 states and 5503 transitions. Word has length 643 [2021-11-12 22:57:54,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:54,095 INFO L470 AbstractCegarLoop]: Abstraction has 4063 states and 5503 transitions. [2021-11-12 22:57:54,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-12 22:57:54,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4063 states and 5503 transitions. [2021-11-12 22:57:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2021-11-12 22:57:54,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:54,102 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:54,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:54,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2021-11-12 22:57:54,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:54,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:54,703 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:57:54,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash 156968336, now seen corresponding path program 1 times [2021-11-12 22:57:54,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:54,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757696391] [2021-11-12 22:57:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:54,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:54,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:54,707 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:54,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-11-12 22:57:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:57,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:57,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-12 22:57:59,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-12 22:58:00,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:00,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757696391] [2021-11-12 22:58:00,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757696391] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:00,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [845211421] [2021-11-12 22:58:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:00,930 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:00,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:00,931 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:00,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2021-11-12 22:58:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:02,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 2587 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:58:02,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-12 22:58:06,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-12 22:58:08,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [845211421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:08,338 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:58:08,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [5, 5] total 10 [2021-11-12 22:58:08,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684818361] [2021-11-12 22:58:08,340 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:08,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:58:08,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:08,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:58:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:58:08,342 INFO L87 Difference]: Start difference. First operand 4063 states and 5503 transitions. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) [2021-11-12 22:58:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:10,465 INFO L93 Difference]: Finished difference Result 8101 states and 11000 transitions. [2021-11-12 22:58:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:58:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) Word has length 647 [2021-11-12 22:58:10,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:10,481 INFO L225 Difference]: With dead ends: 8101 [2021-11-12 22:58:10,482 INFO L226 Difference]: Without dead ends: 4057 [2021-11-12 22:58:10,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2584 GetRequests, 2576 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:58:10,506 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2888 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1068.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.56ms SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1347.42ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:10,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2888 Valid, 2162 Invalid, 842 Unknown, 0 Unchecked, 11.56ms Time], IncrementalHoareTripleChecker [841 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1347.42ms Time] [2021-11-12 22:58:10,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-11-12 22:58:11,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4057. [2021-11-12 22:58:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 2710 states have (on average 1.2169741697416974) internal successors, (3298), 2792 states have internal predecessors, (3298), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-12 22:58:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5494 transitions. [2021-11-12 22:58:11,142 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5494 transitions. Word has length 647 [2021-11-12 22:58:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:11,143 INFO L470 AbstractCegarLoop]: Abstraction has 4057 states and 5494 transitions. [2021-11-12 22:58:11,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) [2021-11-12 22:58:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5494 transitions. [2021-11-12 22:58:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2021-11-12 22:58:11,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:11,153 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 20, 20, 20, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:11,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (67)] Ended with exit code 0 [2021-11-12 22:58:11,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:11,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:11,568 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:58:11,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash 315894927, now seen corresponding path program 1 times [2021-11-12 22:58:11,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:11,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455531913] [2021-11-12 22:58:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:11,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:11,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:11,572 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:11,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-11-12 22:58:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:14,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:14,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 524 proven. 5 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked. [2021-11-12 22:58:16,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2511 trivial. 0 not checked. [2021-11-12 22:58:17,615 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:17,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455531913] [2021-11-12 22:58:17,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455531913] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:17,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [861679932] [2021-11-12 22:58:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:17,615 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:17,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:17,617 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:17,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2021-11-12 22:58:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:19,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:58:19,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-12 22:58:20,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2516 trivial. 0 not checked. [2021-11-12 22:58:21,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [861679932] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:21,812 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:58:21,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [5, 5] total 15 [2021-11-12 22:58:21,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686742618] [2021-11-12 22:58:21,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:21,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:58:21,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:21,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:58:21,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:58:21,815 INFO L87 Difference]: Start difference. First operand 4057 states and 5494 transitions. Second operand has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) [2021-11-12 22:58:22,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:22,739 INFO L93 Difference]: Finished difference Result 8257 states and 11239 transitions. [2021-11-12 22:58:22,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:58:22,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) Word has length 696 [2021-11-12 22:58:22,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:22,753 INFO L225 Difference]: With dead ends: 8257 [2021-11-12 22:58:22,753 INFO L226 Difference]: Without dead ends: 4219 [2021-11-12 22:58:22,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2781 GetRequests, 2767 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-12 22:58:22,763 INFO L933 BasicCegarLoop]: 2226 mSDtfsCounter, 59 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 17722 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.68ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.89ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:22,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 17722 Invalid, 36 Unknown, 0 Unchecked, 18.68ms Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 87.89ms Time] [2021-11-12 22:58:22,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2021-11-12 22:58:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 4065. [2021-11-12 22:58:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2716 states have (on average 1.2164948453608246) internal successors, (3304), 2798 states have internal predecessors, (3304), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 254 states have return successors, (1111), 1081 states have call predecessors, (1111), 1094 states have call successors, (1111) [2021-11-12 22:58:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5509 transitions. [2021-11-12 22:58:23,444 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5509 transitions. Word has length 696 [2021-11-12 22:58:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:23,445 INFO L470 AbstractCegarLoop]: Abstraction has 4065 states and 5509 transitions. [2021-11-12 22:58:23,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) [2021-11-12 22:58:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5509 transitions. [2021-11-12 22:58:23,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2021-11-12 22:58:23,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:23,463 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 20, 20, 20, 16, 16, 11, 11, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:23,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:23,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2021-11-12 22:58:23,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:23,863 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:58:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1627206126, now seen corresponding path program 1 times [2021-11-12 22:58:23,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:23,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136476321] [2021-11-12 22:58:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:23,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:23,868 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:23,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-11-12 22:58:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:27,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3258 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:27,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 536 proven. 5 refuted. 0 times theorem prover too weak. 4294 trivial. 0 not checked. [2021-11-12 22:58:29,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4830 trivial. 0 not checked. [2021-11-12 22:58:31,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:31,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136476321] [2021-11-12 22:58:31,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136476321] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:31,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2009531659] [2021-11-12 22:58:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:31,563 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:31,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:31,564 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:31,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2021-11-12 22:58:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:33,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 3258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:58:33,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 1981 proven. 0 refuted. 0 times theorem prover too weak. 2854 trivial. 0 not checked. [2021-11-12 22:58:34,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2021-11-12 22:58:36,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2009531659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:36,872 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:58:36,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 12 [2021-11-12 22:58:36,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26140320] [2021-11-12 22:58:36,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:36,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:58:36,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:36,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:58:36,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:58:36,875 INFO L87 Difference]: Start difference. First operand 4065 states and 5509 transitions. Second operand has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2021-11-12 22:58:37,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:37,563 INFO L93 Difference]: Finished difference Result 8119 states and 11032 transitions. [2021-11-12 22:58:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:58:37,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) Word has length 904 [2021-11-12 22:58:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:37,574 INFO L225 Difference]: With dead ends: 8119 [2021-11-12 22:58:37,574 INFO L226 Difference]: Without dead ends: 4073 [2021-11-12 22:58:37,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3613 GetRequests, 3602 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:58:37,582 INFO L933 BasicCegarLoop]: 2161 mSDtfsCounter, 11 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6480 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.14ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:37,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 6480 Invalid, 10 Unknown, 0 Unchecked, 7.14ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 21.58ms Time] [2021-11-12 22:58:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2021-11-12 22:58:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4069. [2021-11-12 22:58:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2720 states have (on average 1.2161764705882352) internal successors, (3308), 2802 states have internal predecessors, (3308), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 254 states have return successors, (1111), 1081 states have call predecessors, (1111), 1094 states have call successors, (1111) [2021-11-12 22:58:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5513 transitions. [2021-11-12 22:58:38,144 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5513 transitions. Word has length 904 [2021-11-12 22:58:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:38,145 INFO L470 AbstractCegarLoop]: Abstraction has 4069 states and 5513 transitions. [2021-11-12 22:58:38,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2021-11-12 22:58:38,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5513 transitions. [2021-11-12 22:58:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2021-11-12 22:58:38,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:38,161 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 20, 20, 20, 16, 16, 13, 13, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:38,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:38,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:38,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:38,563 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:58:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1392282258, now seen corresponding path program 1 times [2021-11-12 22:58:38,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:38,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59730511] [2021-11-12 22:58:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:38,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:38,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:38,566 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:38,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2021-11-12 22:58:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:41,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 3254 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:41,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 542 proven. 5 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-11-12 22:58:44,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-11-12 22:58:46,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:46,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59730511] [2021-11-12 22:58:46,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59730511] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:46,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517046340] [2021-11-12 22:58:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:46,121 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:46,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:58:46,121 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:58:46,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2021-11-12 22:58:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:50,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 3254 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:58:50,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 542 proven. 5 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-11-12 22:58:53,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-11-12 22:58:55,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [517046340] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:58:55,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153107800] [2021-11-12 22:58:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:55,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:58:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:58:55,063 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:58:55,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-12 22:58:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:56,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 3254 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 22:58:56,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 4814 trivial. 0 not checked. [2021-11-12 22:58:58,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 4859 trivial. 0 not checked. [2021-11-12 22:59:00,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153107800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:00,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:59:00,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-12 22:59:00,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980874774] [2021-11-12 22:59:00,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:00,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:59:00,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:59:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:59:00,319 INFO L87 Difference]: Start difference. First operand 4069 states and 5513 transitions. Second operand has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) [2021-11-12 22:59:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:02,171 INFO L93 Difference]: Finished difference Result 8499 states and 11532 transitions. [2021-11-12 22:59:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:59:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) Word has length 918 [2021-11-12 22:59:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:02,182 INFO L225 Difference]: With dead ends: 8499 [2021-11-12 22:59:02,182 INFO L226 Difference]: Without dead ends: 4447 [2021-11-12 22:59:02,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5506 GetRequests, 5490 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:59:02,190 INFO L933 BasicCegarLoop]: 2766 mSDtfsCounter, 864 mSDsluCounter, 12460 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 724.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 15226 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.18ms SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 823.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:02,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 15226 Invalid, 478 Unknown, 0 Unchecked, 22.18ms Time], IncrementalHoareTripleChecker [251 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 823.99ms Time] [2021-11-12 22:59:02,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2021-11-12 22:59:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4067. [2021-11-12 22:59:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 2720 states have (on average 1.2154411764705881) internal successors, (3306), 2800 states have internal predecessors, (3306), 1092 states have call successors, (1092), 247 states have call predecessors, (1092), 254 states have return successors, (1109), 1079 states have call predecessors, (1109), 1092 states have call successors, (1109) [2021-11-12 22:59:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5507 transitions. [2021-11-12 22:59:02,785 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5507 transitions. Word has length 918 [2021-11-12 22:59:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:02,787 INFO L470 AbstractCegarLoop]: Abstraction has 4067 states and 5507 transitions. [2021-11-12 22:59:02,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) [2021-11-12 22:59:02,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5507 transitions. [2021-11-12 22:59:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2021-11-12 22:59:02,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:02,811 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 11, 11, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:02,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:03,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:03,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:03,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:03,412 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:59:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash 966701270, now seen corresponding path program 1 times [2021-11-12 22:59:03,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:03,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88463901] [2021-11-12 22:59:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:03,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:03,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:03,416 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:03,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2021-11-12 22:59:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:06,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:06,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 700 proven. 5 refuted. 0 times theorem prover too weak. 4463 trivial. 0 not checked. [2021-11-12 22:59:09,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5163 trivial. 0 not checked. [2021-11-12 22:59:11,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:11,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88463901] [2021-11-12 22:59:11,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88463901] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:11,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1593475385] [2021-11-12 22:59:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:11,872 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:11,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:11,873 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:11,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2021-11-12 22:59:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:16,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:16,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:19,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 700 proven. 5 refuted. 0 times theorem prover too weak. 4463 trivial. 0 not checked. [2021-11-12 22:59:19,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5163 trivial. 0 not checked. [2021-11-12 22:59:21,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1593475385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:21,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709645299] [2021-11-12 22:59:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:21,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:21,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:59:21,562 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:59:21,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-12 22:59:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:23,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:59:23,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 2234 proven. 0 refuted. 0 times theorem prover too weak. 2934 trivial. 0 not checked. [2021-11-12 22:59:25,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5168 trivial. 0 not checked. [2021-11-12 22:59:27,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709645299] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:59:27,798 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:59:27,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-12 22:59:27,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122080591] [2021-11-12 22:59:27,800 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:27,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:59:27,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:59:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:27,802 INFO L87 Difference]: Start difference. First operand 4067 states and 5507 transitions. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-12 22:59:30,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:33,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:35,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:36,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:59:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:36,718 INFO L93 Difference]: Finished difference Result 8167 states and 11101 transitions. [2021-11-12 22:59:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:59:36,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) Word has length 967 [2021-11-12 22:59:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:36,732 INFO L225 Difference]: With dead ends: 8167 [2021-11-12 22:59:36,732 INFO L226 Difference]: Without dead ends: 4119 [2021-11-12 22:59:36,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5796 GetRequests, 5788 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:59:36,744 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 23 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8140.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.04ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8254.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:36,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 6458 Invalid, 54 Unknown, 0 Unchecked, 9.04ms Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 2 Unknown, 0 Unchecked, 8254.38ms Time] [2021-11-12 22:59:36,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2021-11-12 22:59:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 4087. [2021-11-12 22:59:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 2736 states have (on average 1.2149122807017543) internal successors, (3324), 2816 states have internal predecessors, (3324), 1096 states have call successors, (1096), 247 states have call predecessors, (1096), 254 states have return successors, (1113), 1083 states have call predecessors, (1113), 1096 states have call successors, (1113) [2021-11-12 22:59:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 5533 transitions. [2021-11-12 22:59:37,502 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 5533 transitions. Word has length 967 [2021-11-12 22:59:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:37,503 INFO L470 AbstractCegarLoop]: Abstraction has 4087 states and 5533 transitions. [2021-11-12 22:59:37,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-12 22:59:37,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 5533 transitions. [2021-11-12 22:59:37,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2021-11-12 22:59:37,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:37,526 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:37,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (77)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:37,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:37,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-11-12 22:59:38,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:38,127 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 22:59:38,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash 988939365, now seen corresponding path program 1 times [2021-11-12 22:59:38,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:38,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821736302] [2021-11-12 22:59:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:38,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:38,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:38,132 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:38,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-11-12 22:59:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:41,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 3726 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:41,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4562 trivial. 0 not checked. [2021-11-12 22:59:45,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5316 trivial. 0 not checked. [2021-11-12 22:59:47,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:47,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821736302] [2021-11-12 22:59:47,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821736302] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:47,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [750031140] [2021-11-12 22:59:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:47,709 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:59:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:59:47,710 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:59:47,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2021-11-12 22:59:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:52,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 3726 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:59:52,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4562 trivial. 0 not checked. [2021-11-12 22:59:55,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5316 trivial. 0 not checked. [2021-11-12 22:59:58,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [750031140] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:59:58,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711181656] [2021-11-12 22:59:58,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:58,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:59:58,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:59:58,188 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:59:58,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-12 22:59:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:00,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 3726 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:00:00,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 763 proven. 0 refuted. 0 times theorem prover too weak. 4558 trivial. 0 not checked. [2021-11-12 23:00:01,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5321 trivial. 0 not checked. [2021-11-12 23:00:04,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711181656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:00:04,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 23:00:04,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-12 23:00:04,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494656010] [2021-11-12 23:00:04,455 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:04,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:00:04,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:04,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:00:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:00:04,457 INFO L87 Difference]: Start difference. First operand 4087 states and 5533 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2021-11-12 23:00:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:05,115 INFO L93 Difference]: Finished difference Result 8165 states and 11079 transitions. [2021-11-12 23:00:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:00:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) Word has length 1097 [2021-11-12 23:00:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:05,131 INFO L225 Difference]: With dead ends: 8165 [2021-11-12 23:00:05,131 INFO L226 Difference]: Without dead ends: 4097 [2021-11-12 23:00:05,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6576 GetRequests, 6568 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:00:05,143 INFO L933 BasicCegarLoop]: 2161 mSDtfsCounter, 4 mSDsluCounter, 4312 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6473 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:05,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 6473 Invalid, 14 Unknown, 0 Unchecked, 8.14ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 44.04ms Time] [2021-11-12 23:00:05,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2021-11-12 23:00:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4097. [2021-11-12 23:00:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4097 states, 2744 states have (on average 1.2142857142857142) internal successors, (3332), 2824 states have internal predecessors, (3332), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 254 states have return successors, (1115), 1085 states have call predecessors, (1115), 1098 states have call successors, (1115) [2021-11-12 23:00:05,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 5545 transitions. [2021-11-12 23:00:05,877 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 5545 transitions. Word has length 1097 [2021-11-12 23:00:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:05,879 INFO L470 AbstractCegarLoop]: Abstraction has 4097 states and 5545 transitions. [2021-11-12 23:00:05,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2021-11-12 23:00:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 5545 transitions. [2021-11-12 23:00:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2021-11-12 23:00:05,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:05,897 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:00:05,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:06,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:06,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:06,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:00:06,498 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 23:00:06,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:06,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1279515045, now seen corresponding path program 1 times [2021-11-12 23:00:06,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:06,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719805012] [2021-11-12 23:00:06,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:06,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:06,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:06,503 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:06,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-11-12 23:00:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:10,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 3756 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:00:10,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4571 trivial. 0 not checked. [2021-11-12 23:00:13,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5325 trivial. 0 not checked. [2021-11-12 23:00:16,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:00:16,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719805012] [2021-11-12 23:00:16,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719805012] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:00:16,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [162338745] [2021-11-12 23:00:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:16,079 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:00:16,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:00:16,080 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:00:16,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2021-11-12 23:00:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:20,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 3756 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:00:20,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4571 trivial. 0 not checked. [2021-11-12 23:00:23,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:26,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5325 trivial. 0 not checked. [2021-11-12 23:00:26,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [162338745] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:00:26,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984540261] [2021-11-12 23:00:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:00:26,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:00:26,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:00:26,155 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:00:26,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-12 23:00:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:00:27,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 3756 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:00:27,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:00:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2332 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2021-11-12 23:00:30,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:00:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 5314 trivial. 0 not checked. [2021-11-12 23:00:34,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984540261] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:00:34,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 23:00:34,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 20 [2021-11-12 23:00:34,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246409728] [2021-11-12 23:00:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:00:34,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:00:34,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:00:34,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:00:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:00:34,694 INFO L87 Difference]: Start difference. First operand 4097 states and 5545 transitions. Second operand has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-12 23:00:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:00:35,478 INFO L93 Difference]: Finished difference Result 8195 states and 11122 transitions. [2021-11-12 23:00:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:00:35,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) Word has length 1111 [2021-11-12 23:00:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:00:35,491 INFO L225 Difference]: With dead ends: 8195 [2021-11-12 23:00:35,491 INFO L226 Difference]: Without dead ends: 4117 [2021-11-12 23:00:35,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6661 GetRequests, 6642 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:00:35,501 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2 mSDsluCounter, 12947 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15106 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.74ms IncrementalHoareTripleChecker+Time [2021-11-12 23:00:35,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 15106 Invalid, 34 Unknown, 0 Unchecked, 15.80ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 111.74ms Time] [2021-11-12 23:00:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-11-12 23:00:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4113. [2021-11-12 23:00:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 2756 states have (on average 1.2133526850507983) internal successors, (3344), 2836 states have internal predecessors, (3344), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-12 23:00:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5563 transitions. [2021-11-12 23:00:36,174 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5563 transitions. Word has length 1111 [2021-11-12 23:00:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:00:36,175 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5563 transitions. [2021-11-12 23:00:36,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-12 23:00:36,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5563 transitions. [2021-11-12 23:00:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1144 [2021-11-12 23:00:36,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:00:36,194 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:00:36,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:36,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:36,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (83)] Forceful destruction successful, exit code 0 [2021-11-12 23:00:36,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:00:36,816 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 23:00:36,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:00:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash -185990683, now seen corresponding path program 2 times [2021-11-12 23:00:36,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:00:36,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223388445] [2021-11-12 23:00:36,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:00:36,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:00:36,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:00:36,821 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:00:36,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-11-12 23:01:07,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:01:07,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:01:07,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:01:07,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:01:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 986 proven. 5 refuted. 0 times theorem prover too weak. 4775 trivial. 0 not checked. [2021-11-12 23:01:10,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5761 trivial. 0 not checked. [2021-11-12 23:01:13,429 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:01:13,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223388445] [2021-11-12 23:01:13,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223388445] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:01:13,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1627057906] [2021-11-12 23:01:13,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:01:13,430 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:01:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:01:13,431 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:01:13,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2021-11-12 23:02:02,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:02:02,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:02:03,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:02:03,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 986 proven. 5 refuted. 0 times theorem prover too weak. 4775 trivial. 0 not checked. [2021-11-12 23:02:06,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5761 trivial. 0 not checked. [2021-11-12 23:02:09,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1627057906] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:09,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766094773] [2021-11-12 23:02:09,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:02:09,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:02:09,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:02:09,237 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:02:09,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-12 23:02:33,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:02:33,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:02:33,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:02:33,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 1508 proven. 0 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2021-11-12 23:02:37,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5766 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 5731 trivial. 0 not checked. [2021-11-12 23:02:40,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766094773] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:02:40,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-12 23:02:40,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5, 6] total 16 [2021-11-12 23:02:40,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506295387] [2021-11-12 23:02:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:02:40,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:02:40,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:02:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:02:40,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:02:40,683 INFO L87 Difference]: Start difference. First operand 4113 states and 5563 transitions. Second operand has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) [2021-11-12 23:02:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:02:41,994 INFO L93 Difference]: Finished difference Result 8211 states and 11114 transitions. [2021-11-12 23:02:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:02:41,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) Word has length 1143 [2021-11-12 23:02:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:02:42,006 INFO L225 Difference]: With dead ends: 8211 [2021-11-12 23:02:42,006 INFO L226 Difference]: Without dead ends: 4117 [2021-11-12 23:02:42,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6853 GetRequests, 6838 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:02:42,014 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 53 mSDsluCounter, 8550 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 464.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 10715 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 493.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:02:42,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 10715 Invalid, 12 Unknown, 0 Unchecked, 12.84ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 493.89ms Time] [2021-11-12 23:02:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-11-12 23:02:42,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4113. [2021-11-12 23:02:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 2756 states have (on average 1.2126269956458635) internal successors, (3342), 2834 states have internal predecessors, (3342), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-12 23:02:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5561 transitions. [2021-11-12 23:02:42,595 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5561 transitions. Word has length 1143 [2021-11-12 23:02:42,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:02:42,596 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5561 transitions. [2021-11-12 23:02:42,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) [2021-11-12 23:02:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5561 transitions. [2021-11-12 23:02:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2021-11-12 23:02:42,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:02:42,614 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:02:42,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:42,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:43,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2021-11-12 23:02:43,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:02:43,215 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 23:02:43,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:02:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash 346306056, now seen corresponding path program 1 times [2021-11-12 23:02:43,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:02:43,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487921466] [2021-11-12 23:02:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:43,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:02:43,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:02:43,220 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:02:43,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-11-12 23:02:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:46,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:02:46,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:02:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 989 proven. 5 refuted. 0 times theorem prover too weak. 4775 trivial. 0 not checked. [2021-11-12 23:02:50,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:02:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5764 trivial. 0 not checked. [2021-11-12 23:02:52,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:02:52,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487921466] [2021-11-12 23:02:52,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487921466] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:02:52,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1691424058] [2021-11-12 23:02:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:02:52,984 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:02:52,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:02:52,987 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:02:52,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (89)] Waiting until timeout for monitored process [2021-11-12 23:02:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:02:58,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:02:58,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 989 proven. 5 refuted. 0 times theorem prover too weak. 4775 trivial. 0 not checked. [2021-11-12 23:03:01,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:03:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5764 trivial. 0 not checked. [2021-11-12 23:03:03,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1691424058] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:03:03,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588236116] [2021-11-12 23:03:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:03:03,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:03:03,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:03:03,823 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:03:03,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-12 23:03:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:03:05,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-12 23:03:05,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:03:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 5653 trivial. 0 not checked. [2021-11-12 23:03:07,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:03:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 5734 trivial. 0 not checked. [2021-11-12 23:03:10,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588236116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:03:10,842 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 23:03:10,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5, 5, 5] total 16 [2021-11-12 23:03:10,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520432797] [2021-11-12 23:03:10,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:03:10,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:03:10,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:03:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:03:10,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:03:10,846 INFO L87 Difference]: Start difference. First operand 4113 states and 5561 transitions. Second operand has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) [2021-11-12 23:03:12,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:03:12,255 INFO L93 Difference]: Finished difference Result 8397 states and 11366 transitions. [2021-11-12 23:03:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:03:12,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) Word has length 1147 [2021-11-12 23:03:12,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:03:12,269 INFO L225 Difference]: With dead ends: 8397 [2021-11-12 23:03:12,269 INFO L226 Difference]: Without dead ends: 4303 [2021-11-12 23:03:12,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6878 GetRequests, 6862 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:03:12,279 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 784 mSDsluCounter, 13374 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 329.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 15693 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.26ms SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 400.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:03:12,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 15693 Invalid, 155 Unknown, 0 Unchecked, 21.26ms Time], IncrementalHoareTripleChecker [129 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 400.32ms Time] [2021-11-12 23:03:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2021-11-12 23:03:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4113. [2021-11-12 23:03:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 2756 states have (on average 1.2111756168359942) internal successors, (3338), 2834 states have internal predecessors, (3338), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-12 23:03:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5557 transitions. [2021-11-12 23:03:12,973 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5557 transitions. Word has length 1147 [2021-11-12 23:03:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:03:12,974 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5557 transitions. [2021-11-12 23:03:12,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) [2021-11-12 23:03:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5557 transitions. [2021-11-12 23:03:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2021-11-12 23:03:12,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:03:12,994 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:03:13,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (89)] Forceful destruction successful, exit code 0 [2021-11-12 23:03:13,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-11-12 23:03:13,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2021-11-12 23:03:13,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:03:13,603 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-12 23:03:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:03:13,604 INFO L85 PathProgramCache]: Analyzing trace with hash -837258363, now seen corresponding path program 1 times [2021-11-12 23:03:13,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:03:13,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559431380] [2021-11-12 23:03:13,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:03:13,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:03:13,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:03:13,608 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:03:13,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7c76e5-3e29-4517-8506-59f04692d2a7/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-11-12 23:03:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:03:17,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 3847 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:03:17,404 INFO L286 TraceCheckSpWp]: Computing forward predicates...