./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--atheros--atl1e--atl1e.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW --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 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:54:33,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:54:33,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:54:33,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:54:33,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:54:33,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:54:33,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:54:33,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:54:33,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:54:33,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:54:33,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:54:33,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:54:33,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:54:33,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:54:33,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:54:33,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:54:33,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:54:33,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:54:33,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:54:34,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:54:34,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:54:34,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:54:34,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:54:34,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:54:34,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:54:34,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:54:34,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:54:34,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:54:34,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:54:34,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:54:34,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:54:34,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:54:34,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:54:34,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:54:34,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:54:34,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:54:34,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:54:34,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:54:34,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:54:34,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:54:34,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:54:34,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:54:34,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:54:34,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:54:34,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:54:34,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:54:34,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:54:34,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:54:34,072 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:54:34,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:54:34,073 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:54:34,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:54:34,074 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:54:34,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:54:34,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:54:34,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:54:34,075 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:54:34,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:54:34,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:54:34,075 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:54:34,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:54:34,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:54:34,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:54:34,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:54:34,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:54:34,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:54:34,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:54:34,078 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:54:34,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:54:34,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:54:34,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:54:34,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:34,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:54:34,079 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:54:34,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:54:34,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:54:34,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:54:34,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:54:34,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:54:34,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:54:34,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f562a8edcec740524cc6f5ce26ff67bd28ae5ab18bd4408db10af8ffec4be5 [2022-11-23 15:54:34,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:54:34,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:54:34,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:54:34,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:54:34,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:54:34,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-23 15:54:37,347 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:54:38,147 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:54:38,148 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-23 15:54:38,206 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/data/aef5723b6/e4370c1863dd4dc8823494b288f64ac9/FLAG2c5e346f9 [2022-11-23 15:54:38,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/data/aef5723b6/e4370c1863dd4dc8823494b288f64ac9 [2022-11-23 15:54:38,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:54:38,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:54:38,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:38,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:54:38,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:54:38,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:38" (1/1) ... [2022-11-23 15:54:38,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa4610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:38, skipping insertion in model container [2022-11-23 15:54:38,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:38" (1/1) ... [2022-11-23 15:54:38,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:54:38,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:54:44,275 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2022-11-23 15:54:44,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2022-11-23 15:54:44,280 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2022-11-23 15:54:44,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2022-11-23 15:54:44,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2022-11-23 15:54:44,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2022-11-23 15:54:44,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2022-11-23 15:54:44,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2022-11-23 15:54:44,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2022-11-23 15:54:44,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2022-11-23 15:54:44,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2022-11-23 15:54:44,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2022-11-23 15:54:44,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2022-11-23 15:54:44,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2022-11-23 15:54:44,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2022-11-23 15:54:44,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2022-11-23 15:54:44,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2022-11-23 15:54:44,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2022-11-23 15:54:44,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2022-11-23 15:54:44,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2022-11-23 15:54:44,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2022-11-23 15:54:44,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2022-11-23 15:54:44,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2022-11-23 15:54:44,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2022-11-23 15:54:44,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2022-11-23 15:54:44,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2022-11-23 15:54:44,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2022-11-23 15:54:44,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2022-11-23 15:54:44,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2022-11-23 15:54:44,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2022-11-23 15:54:44,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2022-11-23 15:54:44,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2022-11-23 15:54:44,296 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2022-11-23 15:54:44,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2022-11-23 15:54:44,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2022-11-23 15:54:44,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2022-11-23 15:54:44,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2022-11-23 15:54:44,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2022-11-23 15:54:44,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2022-11-23 15:54:44,299 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2022-11-23 15:54:44,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2022-11-23 15:54:44,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2022-11-23 15:54:44,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2022-11-23 15:54:44,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2022-11-23 15:54:44,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2022-11-23 15:54:44,302 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2022-11-23 15:54:44,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2022-11-23 15:54:44,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2022-11-23 15:54:44,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2022-11-23 15:54:44,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2022-11-23 15:54:44,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2022-11-23 15:54:44,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2022-11-23 15:54:44,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2022-11-23 15:54:44,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2022-11-23 15:54:44,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2022-11-23 15:54:44,307 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2022-11-23 15:54:44,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2022-11-23 15:54:44,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2022-11-23 15:54:44,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2022-11-23 15:54:44,309 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2022-11-23 15:54:44,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2022-11-23 15:54:44,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2022-11-23 15:54:44,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2022-11-23 15:54:44,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2022-11-23 15:54:44,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2022-11-23 15:54:44,312 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2022-11-23 15:54:44,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2022-11-23 15:54:44,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2022-11-23 15:54:44,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2022-11-23 15:54:44,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2022-11-23 15:54:44,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2022-11-23 15:54:44,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2022-11-23 15:54:44,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2022-11-23 15:54:44,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2022-11-23 15:54:44,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2022-11-23 15:54:44,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2022-11-23 15:54:44,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2022-11-23 15:54:44,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2022-11-23 15:54:44,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2022-11-23 15:54:44,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2022-11-23 15:54:44,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2022-11-23 15:54:44,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2022-11-23 15:54:44,321 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2022-11-23 15:54:44,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2022-11-23 15:54:44,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2022-11-23 15:54:44,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2022-11-23 15:54:44,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2022-11-23 15:54:44,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2022-11-23 15:54:44,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:44,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:54:44,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534178,534191] [2022-11-23 15:54:44,897 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534323,534336] [2022-11-23 15:54:44,897 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534469,534482] [2022-11-23 15:54:44,898 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534634,534647] [2022-11-23 15:54:44,898 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534792,534805] [2022-11-23 15:54:44,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[534950,534963] [2022-11-23 15:54:44,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535108,535121] [2022-11-23 15:54:44,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535268,535281] [2022-11-23 15:54:44,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535427,535440] [2022-11-23 15:54:44,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535566,535579] [2022-11-23 15:54:44,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535708,535721] [2022-11-23 15:54:44,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535857,535870] [2022-11-23 15:54:44,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[535996,536009] [2022-11-23 15:54:44,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536151,536164] [2022-11-23 15:54:44,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536311,536324] [2022-11-23 15:54:44,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536462,536475] [2022-11-23 15:54:44,903 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536613,536626] [2022-11-23 15:54:44,903 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536765,536778] [2022-11-23 15:54:44,904 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[536914,536927] [2022-11-23 15:54:44,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537062,537075] [2022-11-23 15:54:44,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537219,537232] [2022-11-23 15:54:44,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537368,537381] [2022-11-23 15:54:44,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537524,537537] [2022-11-23 15:54:44,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537677,537690] [2022-11-23 15:54:44,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537823,537836] [2022-11-23 15:54:44,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[537966,537979] [2022-11-23 15:54:44,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538118,538131] [2022-11-23 15:54:44,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538264,538277] [2022-11-23 15:54:44,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538409,538422] [2022-11-23 15:54:44,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538563,538576] [2022-11-23 15:54:44,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538714,538727] [2022-11-23 15:54:44,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[538869,538882] [2022-11-23 15:54:44,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539021,539034] [2022-11-23 15:54:44,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539176,539189] [2022-11-23 15:54:44,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539340,539353] [2022-11-23 15:54:44,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539496,539509] [2022-11-23 15:54:44,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539660,539673] [2022-11-23 15:54:44,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539802,539815] [2022-11-23 15:54:44,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[539960,539973] [2022-11-23 15:54:44,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540127,540140] [2022-11-23 15:54:44,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540286,540299] [2022-11-23 15:54:44,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540445,540458] [2022-11-23 15:54:44,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540594,540607] [2022-11-23 15:54:44,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540741,540754] [2022-11-23 15:54:44,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[540880,540893] [2022-11-23 15:54:44,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541043,541056] [2022-11-23 15:54:44,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541209,541222] [2022-11-23 15:54:44,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541373,541386] [2022-11-23 15:54:44,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541538,541551] [2022-11-23 15:54:44,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541703,541716] [2022-11-23 15:54:44,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[541869,541882] [2022-11-23 15:54:44,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542034,542047] [2022-11-23 15:54:44,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542201,542214] [2022-11-23 15:54:44,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542361,542374] [2022-11-23 15:54:44,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542523,542536] [2022-11-23 15:54:44,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542682,542695] [2022-11-23 15:54:44,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542828,542841] [2022-11-23 15:54:44,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[542971,542984] [2022-11-23 15:54:44,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543115,543128] [2022-11-23 15:54:44,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543258,543271] [2022-11-23 15:54:44,932 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543402,543415] [2022-11-23 15:54:44,932 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543543,543556] [2022-11-23 15:54:44,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543681,543694] [2022-11-23 15:54:44,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543839,543852] [2022-11-23 15:54:44,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[543998,544011] [2022-11-23 15:54:44,945 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544154,544167] [2022-11-23 15:54:44,946 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544303,544316] [2022-11-23 15:54:44,946 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544455,544468] [2022-11-23 15:54:44,946 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544606,544619] [2022-11-23 15:54:44,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544755,544768] [2022-11-23 15:54:44,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[544907,544920] [2022-11-23 15:54:44,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545055,545068] [2022-11-23 15:54:44,948 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545208,545221] [2022-11-23 15:54:44,949 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545359,545372] [2022-11-23 15:54:44,949 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545509,545522] [2022-11-23 15:54:44,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545656,545669] [2022-11-23 15:54:44,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545807,545820] [2022-11-23 15:54:44,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[545958,545971] [2022-11-23 15:54:44,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546106,546119] [2022-11-23 15:54:44,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546272,546285] [2022-11-23 15:54:44,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546441,546454] [2022-11-23 15:54:44,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546608,546621] [2022-11-23 15:54:44,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546776,546789] [2022-11-23 15:54:44,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[546926,546939] [2022-11-23 15:54:44,955 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547073,547086] [2022-11-23 15:54:44,955 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547234,547247] [2022-11-23 15:54:44,955 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547404,547417] [2022-11-23 15:54:44,956 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i[547566,547579] [2022-11-23 15:54:44,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:54:45,451 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:54:45,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45 WrapperNode [2022-11-23 15:54:45,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:45,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:45,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:54:45,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:54:45,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,903 INFO L138 Inliner]: procedures = 817, calls = 3646, calls flagged for inlining = 391, calls inlined = 289, statements flattened = 8084 [2022-11-23 15:54:45,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:54:45,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:54:45,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:54:45,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:54:45,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:45,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:54:46,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:54:46,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:54:46,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:54:46,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2022-11-23 15:54:46,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:46,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:54:46,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:54:46,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:54:46,407 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-23 15:54:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-23 15:54:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:54:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:54:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_131 [2022-11-23 15:54:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_131 [2022-11-23 15:54:46,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 15:54:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 15:54:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:54:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:54:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:54:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:54:46,409 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:54:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:54:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-23 15:54:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-23 15:54:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2022-11-23 15:54:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2022-11-23 15:54:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-23 15:54:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-23 15:54:46,410 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2022-11-23 15:54:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2022-11-23 15:54:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:54:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:54:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-23 15:54:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-23 15:54:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:54:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:54:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:54:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:54:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 15:54:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 15:54:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-23 15:54:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-23 15:54:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-23 15:54:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-23 15:54:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:54:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:54:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:54:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:54:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-23 15:54:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-23 15:54:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:54:46,414 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:54:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:54:46,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:54:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 15:54:46,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 15:54:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:54:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 15:54:46,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 15:54:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-23 15:54:46,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-23 15:54:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 15:54:46,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 15:54:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-23 15:54:46,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-23 15:54:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:54:46,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:54:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-23 15:54:46,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-23 15:54:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 15:54:46,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 15:54:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:54:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:54:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-23 15:54:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-23 15:54:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 15:54:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 15:54:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:54:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:54:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:54:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:54:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:54:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:54:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:54:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:54:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-23 15:54:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-23 15:54:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-23 15:54:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-23 15:54:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:54:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:54:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:54:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:54:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-23 15:54:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-23 15:54:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:54:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:54:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:54:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:54:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:54:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:54:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:54:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:54:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:54:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:54:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:54:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:54:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:54:46,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_138 [2022-11-23 15:54:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_138 [2022-11-23 15:54:46,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 15:54:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 15:54:46,422 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 15:54:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 15:54:46,422 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 15:54:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 15:54:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:54:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:54:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_127 [2022-11-23 15:54:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_127 [2022-11-23 15:54:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-23 15:54:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-23 15:54:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 15:54:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 15:54:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 15:54:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 15:54:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:54:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:54:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:54:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 15:54:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 15:54:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:54:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-23 15:54:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-23 15:54:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:54:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:54:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:54:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:54:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:54:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:54:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:54:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:54:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-23 15:54:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-23 15:54:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 15:54:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 15:54:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 15:54:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 15:54:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 15:54:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 15:54:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:54:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:54:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:54:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-23 15:54:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-23 15:54:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:54:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:54:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-23 15:54:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-23 15:54:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-23 15:54:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-23 15:54:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2022-11-23 15:54:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2022-11-23 15:54:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 15:54:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 15:54:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-23 15:54:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-23 15:54:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:54:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:54:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-23 15:54:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-23 15:54:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 15:54:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 15:54:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-23 15:54:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-23 15:54:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-23 15:54:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-23 15:54:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-23 15:54:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-23 15:54:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 15:54:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 15:54:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 15:54:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 15:54:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 15:54:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 15:54:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-23 15:54:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-23 15:54:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:54:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:54:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-23 15:54:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-23 15:54:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_130 [2022-11-23 15:54:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_130 [2022-11-23 15:54:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:54:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:54:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-23 15:54:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-23 15:54:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 15:54:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 15:54:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 15:54:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 15:54:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-23 15:54:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-23 15:54:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 15:54:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 15:54:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:54:46,438 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:54:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:54:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:54:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:54:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:54:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:54:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:54:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:54:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:54:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-23 15:54:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-23 15:54:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-23 15:54:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-23 15:54:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 15:54:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 15:54:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:54:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-23 15:54:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-23 15:54:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-23 15:54:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-23 15:54:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:54:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:54:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:54:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-23 15:54:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-23 15:54:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 15:54:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 15:54:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-23 15:54:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-23 15:54:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:54:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-23 15:54:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-23 15:54:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:54:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 15:54:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-23 15:54:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 15:54:46,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 15:54:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:54:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:54:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:54:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:54:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-23 15:54:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:54:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:54:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 15:54:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 15:54:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 15:54:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 15:54:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:54:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:54:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 15:54:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 15:54:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-23 15:54:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-23 15:54:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:54:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:54:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 15:54:46,530 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 15:54:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 15:54:46,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 15:54:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 15:54:46,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 15:54:46,530 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 15:54:46,530 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 15:54:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:54:46,531 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:54:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:54:46,531 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-23 15:54:46,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-23 15:54:47,685 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:54:47,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:54:48,172 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:54:58,714 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:55:00,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:55:00,673 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:55:00,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:00 BoogieIcfgContainer [2022-11-23 15:55:00,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:55:00,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:55:00,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:55:00,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:55:00,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:38" (1/3) ... [2022-11-23 15:55:00,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d26d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:00, skipping insertion in model container [2022-11-23 15:55:00,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (2/3) ... [2022-11-23 15:55:00,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d26d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:00, skipping insertion in model container [2022-11-23 15:55:00,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:00" (3/3) ... [2022-11-23 15:55:00,691 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--atheros--atl1e--atl1e.ko.cil.i [2022-11-23 15:55:00,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:55:00,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-23 15:55:00,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:55:00,819 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@532cd5ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:55:00,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-23 15:55:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 2222 states, 1278 states have (on average 1.2746478873239437) internal successors, (1629), 1340 states have internal predecessors, (1629), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) [2022-11-23 15:55:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:55:00,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:00,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:55:00,846 INFO L420 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 26 more)] === [2022-11-23 15:55:00,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:00,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1069440516, now seen corresponding path program 1 times [2022-11-23 15:55:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:00,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625868001] [2022-11-23 15:55:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:55:01,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:01,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625868001] [2022-11-23 15:55:01,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625868001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:01,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:01,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:02,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523752880] [2022-11-23 15:55:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:02,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:02,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:02,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:02,053 INFO L87 Difference]: Start difference. First operand has 2222 states, 1278 states have (on average 1.2746478873239437) internal successors, (1629), 1340 states have internal predecessors, (1629), 747 states have call successors, (747), 169 states have call predecessors, (747), 168 states have return successors, (743), 740 states have call predecessors, (743), 743 states have call successors, (743) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 15:55:05,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:08,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:11,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:13,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:13,346 INFO L93 Difference]: Finished difference Result 5883 states and 8345 transitions. [2022-11-23 15:55:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:55:13,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2022-11-23 15:55:13,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:13,405 INFO L225 Difference]: With dead ends: 5883 [2022-11-23 15:55:13,405 INFO L226 Difference]: Without dead ends: 3663 [2022-11-23 15:55:13,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:55:13,430 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 1979 mSDsluCounter, 6007 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 9309 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:13,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 9309 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1089 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2022-11-23 15:55:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2022-11-23 15:55:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3496. [2022-11-23 15:55:13,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 2015 states have (on average 1.2461538461538462) internal successors, (2511), 2098 states have internal predecessors, (2511), 1172 states have call successors, (1172), 282 states have call predecessors, (1172), 281 states have return successors, (1170), 1164 states have call predecessors, (1170), 1170 states have call successors, (1170) [2022-11-23 15:55:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 4853 transitions. [2022-11-23 15:55:13,778 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 4853 transitions. Word has length 47 [2022-11-23 15:55:13,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:13,780 INFO L495 AbstractCegarLoop]: Abstraction has 3496 states and 4853 transitions. [2022-11-23 15:55:13,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 15:55:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 4853 transitions. [2022-11-23 15:55:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 15:55:13,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:13,784 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:55:13,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:55:13,786 INFO L420 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 26 more)] === [2022-11-23 15:55:13,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:13,787 INFO L85 PathProgramCache]: Analyzing trace with hash -292578616, now seen corresponding path program 1 times [2022-11-23 15:55:13,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:13,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467760137] [2022-11-23 15:55:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:13,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:55:14,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:14,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467760137] [2022-11-23 15:55:14,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467760137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:14,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:14,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:14,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685457419] [2022-11-23 15:55:14,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:14,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:14,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:14,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:14,437 INFO L87 Difference]: Start difference. First operand 3496 states and 4853 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 15:55:16,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:17,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:19,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:21,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:23,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:26,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:27,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:27,671 INFO L93 Difference]: Finished difference Result 3663 states and 5031 transitions. [2022-11-23 15:55:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:55:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2022-11-23 15:55:27,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:27,695 INFO L225 Difference]: With dead ends: 3663 [2022-11-23 15:55:27,695 INFO L226 Difference]: Without dead ends: 3661 [2022-11-23 15:55:27,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:55:27,699 INFO L413 NwaCegarLoop]: 3286 mSDtfsCounter, 1963 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:27,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 9263 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1086 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-23 15:55:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2022-11-23 15:55:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3502. [2022-11-23 15:55:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 2018 states have (on average 1.2457879088206145) internal successors, (2514), 2101 states have internal predecessors, (2514), 1174 states have call successors, (1174), 283 states have call predecessors, (1174), 282 states have return successors, (1172), 1166 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-23 15:55:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 4860 transitions. [2022-11-23 15:55:27,884 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 4860 transitions. Word has length 52 [2022-11-23 15:55:27,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:27,885 INFO L495 AbstractCegarLoop]: Abstraction has 3502 states and 4860 transitions. [2022-11-23 15:55:27,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 15:55:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 4860 transitions. [2022-11-23 15:55:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 15:55:27,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:27,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:55:27,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:55:27,897 INFO L420 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 26 more)] === [2022-11-23 15:55:27,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1599830045, now seen corresponding path program 1 times [2022-11-23 15:55:27,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:27,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576823253] [2022-11-23 15:55:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:27,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:55:28,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:28,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576823253] [2022-11-23 15:55:28,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576823253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:28,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:28,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642289787] [2022-11-23 15:55:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:28,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:28,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:28,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:28,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:28,555 INFO L87 Difference]: Start difference. First operand 3502 states and 4860 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 15:55:30,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:34,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:36,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:39,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:40,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:40,661 INFO L93 Difference]: Finished difference Result 3661 states and 5029 transitions. [2022-11-23 15:55:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:55:40,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-23 15:55:40,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:40,683 INFO L225 Difference]: With dead ends: 3661 [2022-11-23 15:55:40,684 INFO L226 Difference]: Without dead ends: 3659 [2022-11-23 15:55:40,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:55:40,687 INFO L413 NwaCegarLoop]: 3286 mSDtfsCounter, 1960 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:40,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 9263 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1086 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2022-11-23 15:55:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2022-11-23 15:55:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 3508. [2022-11-23 15:55:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2021 states have (on average 1.2454230578921326) internal successors, (2517), 2104 states have internal predecessors, (2517), 1176 states have call successors, (1176), 284 states have call predecessors, (1176), 283 states have return successors, (1174), 1168 states have call predecessors, (1174), 1174 states have call successors, (1174) [2022-11-23 15:55:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 4867 transitions. [2022-11-23 15:55:40,864 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 4867 transitions. Word has length 57 [2022-11-23 15:55:40,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:40,865 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 4867 transitions. [2022-11-23 15:55:40,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 15:55:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 4867 transitions. [2022-11-23 15:55:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:55:40,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:40,867 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:55:40,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:55:40,867 INFO L420 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 26 more)] === [2022-11-23 15:55:40,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash 364389533, now seen corresponding path program 1 times [2022-11-23 15:55:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763297347] [2022-11-23 15:55:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:55:41,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:41,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763297347] [2022-11-23 15:55:41,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763297347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:41,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:41,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:41,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291882695] [2022-11-23 15:55:41,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:41,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:41,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:41,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:41,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:41,378 INFO L87 Difference]: Start difference. First operand 3508 states and 4867 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 15:55:42,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:44,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:47,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:49,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:52,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:54,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:54,092 INFO L93 Difference]: Finished difference Result 3659 states and 5027 transitions. [2022-11-23 15:55:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:55:54,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-23 15:55:54,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:54,114 INFO L225 Difference]: With dead ends: 3659 [2022-11-23 15:55:54,114 INFO L226 Difference]: Without dead ends: 3657 [2022-11-23 15:55:54,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:55:54,119 INFO L413 NwaCegarLoop]: 3286 mSDtfsCounter, 1957 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:54,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 9263 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1086 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-11-23 15:55:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3657 states. [2022-11-23 15:55:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3657 to 3514. [2022-11-23 15:55:54,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3514 states, 2024 states have (on average 1.2450592885375493) internal successors, (2520), 2107 states have internal predecessors, (2520), 1178 states have call successors, (1178), 285 states have call predecessors, (1178), 284 states have return successors, (1176), 1170 states have call predecessors, (1176), 1176 states have call successors, (1176) [2022-11-23 15:55:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 4874 transitions. [2022-11-23 15:55:54,305 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 4874 transitions. Word has length 62 [2022-11-23 15:55:54,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:54,306 INFO L495 AbstractCegarLoop]: Abstraction has 3514 states and 4874 transitions. [2022-11-23 15:55:54,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 15:55:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 4874 transitions. [2022-11-23 15:55:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 15:55:54,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:54,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:55:54,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:55:54,308 INFO L420 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 26 more)] === [2022-11-23 15:55:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2142156663, now seen corresponding path program 1 times [2022-11-23 15:55:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:54,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300884558] [2022-11-23 15:55:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:55:54,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:54,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300884558] [2022-11-23 15:55:54,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300884558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:54,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:54,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:55:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321301825] [2022-11-23 15:55:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:54,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:55:54,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:55:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:55:54,729 INFO L87 Difference]: Start difference. First operand 3514 states and 4874 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 15:55:56,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:55:58,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:01,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:06,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:07,480 INFO L93 Difference]: Finished difference Result 3657 states and 5025 transitions. [2022-11-23 15:56:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:56:07,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-23 15:56:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:07,502 INFO L225 Difference]: With dead ends: 3657 [2022-11-23 15:56:07,502 INFO L226 Difference]: Without dead ends: 3655 [2022-11-23 15:56:07,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:56:07,506 INFO L413 NwaCegarLoop]: 3286 mSDtfsCounter, 1954 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:07,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 9263 Invalid, 1089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1085 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-11-23 15:56:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2022-11-23 15:56:07,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3520. [2022-11-23 15:56:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2027 states have (on average 1.2446965959546128) internal successors, (2523), 2110 states have internal predecessors, (2523), 1180 states have call successors, (1180), 286 states have call predecessors, (1180), 285 states have return successors, (1178), 1172 states have call predecessors, (1178), 1178 states have call successors, (1178) [2022-11-23 15:56:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4881 transitions. [2022-11-23 15:56:07,698 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4881 transitions. Word has length 67 [2022-11-23 15:56:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:07,699 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 4881 transitions. [2022-11-23 15:56:07,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 15:56:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4881 transitions. [2022-11-23 15:56:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 15:56:07,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:07,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:56:07,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:56:07,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 26 more)] === [2022-11-23 15:56:07,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash 247664866, now seen corresponding path program 1 times [2022-11-23 15:56:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:07,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890735538] [2022-11-23 15:56:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:56:08,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:08,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890735538] [2022-11-23 15:56:08,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890735538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:08,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:08,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:56:08,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718635335] [2022-11-23 15:56:08,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:08,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:56:08,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:56:08,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:56:08,086 INFO L87 Difference]: Start difference. First operand 3520 states and 4881 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:56:10,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:13,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:16,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:18,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:18,538 INFO L93 Difference]: Finished difference Result 3662 states and 5026 transitions. [2022-11-23 15:56:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:56:18,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-23 15:56:18,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:18,557 INFO L225 Difference]: With dead ends: 3662 [2022-11-23 15:56:18,557 INFO L226 Difference]: Without dead ends: 3660 [2022-11-23 15:56:18,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:56:18,560 INFO L413 NwaCegarLoop]: 3281 mSDtfsCounter, 1888 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:18,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 9253 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1093 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-11-23 15:56:18,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2022-11-23 15:56:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3534. [2022-11-23 15:56:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2034 states have (on average 1.2438544739429696) internal successors, (2530), 2117 states have internal predecessors, (2530), 1182 states have call successors, (1182), 291 states have call predecessors, (1182), 290 states have return successors, (1180), 1174 states have call predecessors, (1180), 1180 states have call successors, (1180) [2022-11-23 15:56:18,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4892 transitions. [2022-11-23 15:56:18,760 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4892 transitions. Word has length 72 [2022-11-23 15:56:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:18,761 INFO L495 AbstractCegarLoop]: Abstraction has 3534 states and 4892 transitions. [2022-11-23 15:56:18,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:56:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4892 transitions. [2022-11-23 15:56:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:56:18,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:18,764 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 15:56:18,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:56:18,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 26 more)] === [2022-11-23 15:56:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1327715267, now seen corresponding path program 1 times [2022-11-23 15:56:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:18,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834589346] [2022-11-23 15:56:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 15:56:19,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:19,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834589346] [2022-11-23 15:56:19,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834589346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:19,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:19,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:56:19,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505806881] [2022-11-23 15:56:19,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:19,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:19,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:19,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:56:19,109 INFO L87 Difference]: Start difference. First operand 3534 states and 4892 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 15:56:20,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:23,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:25,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:27,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:27,069 INFO L93 Difference]: Finished difference Result 7914 states and 10907 transitions. [2022-11-23 15:56:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:56:27,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2022-11-23 15:56:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:27,092 INFO L225 Difference]: With dead ends: 7914 [2022-11-23 15:56:27,092 INFO L226 Difference]: Without dead ends: 4398 [2022-11-23 15:56:27,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:56:27,106 INFO L413 NwaCegarLoop]: 3406 mSDtfsCounter, 1974 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 5377 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:27,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 5377 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 696 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-11-23 15:56:27,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4398 states. [2022-11-23 15:56:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4398 to 4388. [2022-11-23 15:56:27,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 2527 states have (on average 1.2402057776018995) internal successors, (3134), 2620 states have internal predecessors, (3134), 1451 states have call successors, (1451), 383 states have call predecessors, (1451), 382 states have return successors, (1449), 1443 states have call predecessors, (1449), 1449 states have call successors, (1449) [2022-11-23 15:56:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 6034 transitions. [2022-11-23 15:56:27,342 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 6034 transitions. Word has length 89 [2022-11-23 15:56:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:27,344 INFO L495 AbstractCegarLoop]: Abstraction has 4388 states and 6034 transitions. [2022-11-23 15:56:27,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 15:56:27,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 6034 transitions. [2022-11-23 15:56:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-23 15:56:27,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:27,348 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:27,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:56:27,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-23 15:56:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 992918983, now seen corresponding path program 1 times [2022-11-23 15:56:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:27,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103998563] [2022-11-23 15:56:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-23 15:56:27,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:27,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103998563] [2022-11-23 15:56:27,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103998563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:27,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:27,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:56:27,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008730528] [2022-11-23 15:56:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:27,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:56:27,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:56:27,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:56:27,979 INFO L87 Difference]: Start difference. First operand 4388 states and 6034 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:56:31,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:32,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:34,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:38,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:41,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:41,768 INFO L93 Difference]: Finished difference Result 7187 states and 9873 transitions. [2022-11-23 15:56:41,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:56:41,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 92 [2022-11-23 15:56:41,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:41,831 INFO L225 Difference]: With dead ends: 7187 [2022-11-23 15:56:41,831 INFO L226 Difference]: Without dead ends: 7185 [2022-11-23 15:56:41,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:56:41,837 INFO L413 NwaCegarLoop]: 4350 mSDtfsCounter, 2809 mSDsluCounter, 11374 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 15724 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:41,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 15724 Invalid, 1954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1949 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-11-23 15:56:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-11-23 15:56:42,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 7005. [2022-11-23 15:56:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 4047 states have (on average 1.2404250061774154) internal successors, (5020), 4185 states have internal predecessors, (5020), 2324 states have call successors, (2324), 609 states have call predecessors, (2324), 606 states have return successors, (2333), 2304 states have call predecessors, (2333), 2322 states have call successors, (2333) [2022-11-23 15:56:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 9677 transitions. [2022-11-23 15:56:42,218 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 9677 transitions. Word has length 92 [2022-11-23 15:56:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:42,219 INFO L495 AbstractCegarLoop]: Abstraction has 7005 states and 9677 transitions. [2022-11-23 15:56:42,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:56:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 9677 transitions. [2022-11-23 15:56:42,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 15:56:42,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:42,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:56:42,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:56:42,221 INFO L420 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 26 more)] === [2022-11-23 15:56:42,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash 472553461, now seen corresponding path program 1 times [2022-11-23 15:56:42,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:42,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787160687] [2022-11-23 15:56:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:42,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:56:42,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787160687] [2022-11-23 15:56:42,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787160687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:42,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:42,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:56:42,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934993342] [2022-11-23 15:56:42,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:42,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:56:42,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:56:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:56:42,689 INFO L87 Difference]: Start difference. First operand 7005 states and 9677 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 15:56:44,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:46,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:48,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:52,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:54,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:56:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:56,556 INFO L93 Difference]: Finished difference Result 7128 states and 9808 transitions. [2022-11-23 15:56:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:56:56,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2022-11-23 15:56:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:56,591 INFO L225 Difference]: With dead ends: 7128 [2022-11-23 15:56:56,591 INFO L226 Difference]: Without dead ends: 7126 [2022-11-23 15:56:56,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:56:56,597 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1941 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:56,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2022-11-23 15:56:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7126 states. [2022-11-23 15:56:57,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7126 to 7011. [2022-11-23 15:56:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 4050 states have (on average 1.240246913580247) internal successors, (5023), 4188 states have internal predecessors, (5023), 2326 states have call successors, (2326), 610 states have call predecessors, (2326), 607 states have return successors, (2335), 2306 states have call predecessors, (2335), 2324 states have call successors, (2335) [2022-11-23 15:56:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 9684 transitions. [2022-11-23 15:56:57,047 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 9684 transitions. Word has length 77 [2022-11-23 15:56:57,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:57,048 INFO L495 AbstractCegarLoop]: Abstraction has 7011 states and 9684 transitions. [2022-11-23 15:56:57,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 15:56:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 9684 transitions. [2022-11-23 15:56:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 15:56:57,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:57,051 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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] [2022-11-23 15:56:57,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:56:57,051 INFO L420 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 26 more)] === [2022-11-23 15:56:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:57,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1253935147, now seen corresponding path program 1 times [2022-11-23 15:56:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:57,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456497675] [2022-11-23 15:56:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:57,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 15:56:57,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456497675] [2022-11-23 15:56:57,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456497675] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810825467] [2022-11-23 15:56:57,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:57,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:57,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:57,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:56:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:58,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:56:58,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 15:56:58,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:56:58,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810825467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:58,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:56:58,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-23 15:56:58,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941569263] [2022-11-23 15:56:58,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:58,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:58,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:56:58,988 INFO L87 Difference]: Start difference. First operand 7011 states and 9684 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:57:01,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:03,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:06,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:07,760 INFO L93 Difference]: Finished difference Result 14024 states and 19359 transitions. [2022-11-23 15:57:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:57:07,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2022-11-23 15:57:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:07,793 INFO L225 Difference]: With dead ends: 14024 [2022-11-23 15:57:07,793 INFO L226 Difference]: Without dead ends: 7031 [2022-11-23 15:57:07,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:57:07,820 INFO L413 NwaCegarLoop]: 3409 mSDtfsCounter, 1963 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 5389 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:07,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 5389 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-11-23 15:57:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2022-11-23 15:57:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7019. [2022-11-23 15:57:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 4054 states have (on average 1.2395165268870252) internal successors, (5025), 4192 states have internal predecessors, (5025), 2328 states have call successors, (2328), 612 states have call predecessors, (2328), 609 states have return successors, (2337), 2308 states have call predecessors, (2337), 2326 states have call successors, (2337) [2022-11-23 15:57:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 9690 transitions. [2022-11-23 15:57:08,287 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 9690 transitions. Word has length 94 [2022-11-23 15:57:08,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:08,287 INFO L495 AbstractCegarLoop]: Abstraction has 7019 states and 9690 transitions. [2022-11-23 15:57:08,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:57:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 9690 transitions. [2022-11-23 15:57:08,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 15:57:08,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:08,290 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:57:08,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:57:08,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:57:08,505 INFO L420 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 26 more)] === [2022-11-23 15:57:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:08,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1843896113, now seen corresponding path program 1 times [2022-11-23 15:57:08,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:08,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057576877] [2022-11-23 15:57:08,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:08,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:57:08,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:08,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057576877] [2022-11-23 15:57:08,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057576877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:08,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:08,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59503563] [2022-11-23 15:57:08,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:08,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:08,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:08,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:08,915 INFO L87 Difference]: Start difference. First operand 7019 states and 9690 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:57:11,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:14,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:16,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:20,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:21,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:21,971 INFO L93 Difference]: Finished difference Result 7132 states and 9811 transitions. [2022-11-23 15:57:21,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:57:21,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2022-11-23 15:57:21,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:22,002 INFO L225 Difference]: With dead ends: 7132 [2022-11-23 15:57:22,002 INFO L226 Difference]: Without dead ends: 7130 [2022-11-23 15:57:22,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:57:22,007 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1941 mSDsluCounter, 6293 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 9899 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:22,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 9899 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-23 15:57:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7130 states. [2022-11-23 15:57:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7130 to 7027. [2022-11-23 15:57:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 4059 states have (on average 1.2394678492239468) internal successors, (5031), 4197 states have internal predecessors, (5031), 2330 states have call successors, (2330), 613 states have call predecessors, (2330), 610 states have return successors, (2339), 2310 states have call predecessors, (2339), 2328 states have call successors, (2339) [2022-11-23 15:57:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9700 transitions. [2022-11-23 15:57:22,420 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9700 transitions. Word has length 82 [2022-11-23 15:57:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:22,423 INFO L495 AbstractCegarLoop]: Abstraction has 7027 states and 9700 transitions. [2022-11-23 15:57:22,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:57:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9700 transitions. [2022-11-23 15:57:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 15:57:22,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:22,426 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:57:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:57:22,426 INFO L420 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 26 more)] === [2022-11-23 15:57:22,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1837176076, now seen corresponding path program 1 times [2022-11-23 15:57:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:22,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195314800] [2022-11-23 15:57:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:57:22,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195314800] [2022-11-23 15:57:22,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195314800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:22,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527070576] [2022-11-23 15:57:22,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:22,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:22,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:22,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:22,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:22,891 INFO L87 Difference]: Start difference. First operand 7027 states and 9700 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:57:25,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:27,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:29,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:32,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:34,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:36,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:38,595 INFO L93 Difference]: Finished difference Result 7129 states and 9808 transitions. [2022-11-23 15:57:38,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:57:38,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-11-23 15:57:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:38,633 INFO L225 Difference]: With dead ends: 7129 [2022-11-23 15:57:38,633 INFO L226 Difference]: Without dead ends: 7127 [2022-11-23 15:57:38,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:57:38,639 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1866 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:38,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 9883 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1212 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-11-23 15:57:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7127 states. [2022-11-23 15:57:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7127 to 7027. [2022-11-23 15:57:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 4059 states have (on average 1.239221483123922) internal successors, (5030), 4197 states have internal predecessors, (5030), 2330 states have call successors, (2330), 613 states have call predecessors, (2330), 610 states have return successors, (2339), 2310 states have call predecessors, (2339), 2328 states have call successors, (2339) [2022-11-23 15:57:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9699 transitions. [2022-11-23 15:57:39,152 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9699 transitions. Word has length 84 [2022-11-23 15:57:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:39,153 INFO L495 AbstractCegarLoop]: Abstraction has 7027 states and 9699 transitions. [2022-11-23 15:57:39,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:57:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9699 transitions. [2022-11-23 15:57:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:57:39,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:39,155 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:57:39,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:57:39,155 INFO L420 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 26 more)] === [2022-11-23 15:57:39,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash 160907997, now seen corresponding path program 1 times [2022-11-23 15:57:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:39,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743762967] [2022-11-23 15:57:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:57:39,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:39,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743762967] [2022-11-23 15:57:39,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743762967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:39,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:39,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:39,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186209149] [2022-11-23 15:57:39,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:39,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:39,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:39,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:39,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:39,518 INFO L87 Difference]: Start difference. First operand 7027 states and 9699 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 15:57:41,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:45,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:48,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:50,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:57:50,905 INFO L93 Difference]: Finished difference Result 7127 states and 9806 transitions. [2022-11-23 15:57:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:57:50,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-11-23 15:57:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:57:50,935 INFO L225 Difference]: With dead ends: 7127 [2022-11-23 15:57:50,935 INFO L226 Difference]: Without dead ends: 7125 [2022-11-23 15:57:50,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:57:50,941 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1865 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:57:50,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2022-11-23 15:57:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2022-11-23 15:57:51,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7033. [2022-11-23 15:57:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 4062 states have (on average 1.239044805514525) internal successors, (5033), 4200 states have internal predecessors, (5033), 2332 states have call successors, (2332), 614 states have call predecessors, (2332), 611 states have return successors, (2341), 2312 states have call predecessors, (2341), 2330 states have call successors, (2341) [2022-11-23 15:57:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 9706 transitions. [2022-11-23 15:57:51,444 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 9706 transitions. Word has length 89 [2022-11-23 15:57:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:57:51,444 INFO L495 AbstractCegarLoop]: Abstraction has 7033 states and 9706 transitions. [2022-11-23 15:57:51,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 15:57:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 9706 transitions. [2022-11-23 15:57:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 15:57:51,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:57:51,447 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:57:51,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 15:57:51,447 INFO L420 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 26 more)] === [2022-11-23 15:57:51,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:57:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1556543143, now seen corresponding path program 1 times [2022-11-23 15:57:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:57:51,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755078786] [2022-11-23 15:57:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:57:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:57:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:57:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:57:51,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:57:51,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755078786] [2022-11-23 15:57:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755078786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:57:51,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:57:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:57:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404736937] [2022-11-23 15:57:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:57:51,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:57:51,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:57:51,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:57:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:57:51,996 INFO L87 Difference]: Start difference. First operand 7033 states and 9706 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 15:57:53,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:55,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:57:58,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:00,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:05,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:06,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:06,806 INFO L93 Difference]: Finished difference Result 7126 states and 9805 transitions. [2022-11-23 15:58:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:58:06,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2022-11-23 15:58:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:06,826 INFO L225 Difference]: With dead ends: 7126 [2022-11-23 15:58:06,826 INFO L226 Difference]: Without dead ends: 7124 [2022-11-23 15:58:06,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:06,829 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1925 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:06,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 9903 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-23 15:58:06,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-23 15:58:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 7039. [2022-11-23 15:58:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 4065 states have (on average 1.238868388683887) internal successors, (5036), 4203 states have internal predecessors, (5036), 2334 states have call successors, (2334), 615 states have call predecessors, (2334), 612 states have return successors, (2343), 2314 states have call predecessors, (2343), 2332 states have call successors, (2343) [2022-11-23 15:58:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 9713 transitions. [2022-11-23 15:58:07,261 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 9713 transitions. Word has length 94 [2022-11-23 15:58:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:07,262 INFO L495 AbstractCegarLoop]: Abstraction has 7039 states and 9713 transitions. [2022-11-23 15:58:07,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 15:58:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 9713 transitions. [2022-11-23 15:58:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-23 15:58:07,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:07,265 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:58:07,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 15:58:07,265 INFO L420 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 26 more)] === [2022-11-23 15:58:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1226978774, now seen corresponding path program 1 times [2022-11-23 15:58:07,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:07,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168993858] [2022-11-23 15:58:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:58:07,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:07,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168993858] [2022-11-23 15:58:07,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168993858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:07,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:07,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:58:07,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731316686] [2022-11-23 15:58:07,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:07,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:58:07,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:07,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:58:07,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:07,744 INFO L87 Difference]: Start difference. First operand 7039 states and 9713 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 15:58:10,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:14,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:17,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:19,360 INFO L93 Difference]: Finished difference Result 7123 states and 9802 transitions. [2022-11-23 15:58:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:58:19,360 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), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-23 15:58:19,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:19,384 INFO L225 Difference]: With dead ends: 7123 [2022-11-23 15:58:19,384 INFO L226 Difference]: Without dead ends: 7121 [2022-11-23 15:58:19,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:19,388 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1859 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:19,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-23 15:58:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2022-11-23 15:58:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 7045. [2022-11-23 15:58:19,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 4068 states have (on average 1.238692232055064) internal successors, (5039), 4206 states have internal predecessors, (5039), 2336 states have call successors, (2336), 616 states have call predecessors, (2336), 613 states have return successors, (2345), 2316 states have call predecessors, (2345), 2334 states have call successors, (2345) [2022-11-23 15:58:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9720 transitions. [2022-11-23 15:58:19,793 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9720 transitions. Word has length 99 [2022-11-23 15:58:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:19,793 INFO L495 AbstractCegarLoop]: Abstraction has 7045 states and 9720 transitions. [2022-11-23 15:58:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 15:58:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9720 transitions. [2022-11-23 15:58:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 15:58:19,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:19,795 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:58:19,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 15:58:19,796 INFO L420 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 26 more)] === [2022-11-23 15:58:19,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:19,796 INFO L85 PathProgramCache]: Analyzing trace with hash -55967937, now seen corresponding path program 1 times [2022-11-23 15:58:19,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:19,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254210200] [2022-11-23 15:58:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:58:20,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:20,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254210200] [2022-11-23 15:58:20,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254210200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:20,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:20,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:58:20,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725452999] [2022-11-23 15:58:20,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:20,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:58:20,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:20,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:58:20,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:20,270 INFO L87 Difference]: Start difference. First operand 7045 states and 9720 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:58:23,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:26,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:27,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:30,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:32,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:34,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:35,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:35,761 INFO L93 Difference]: Finished difference Result 7122 states and 9801 transitions. [2022-11-23 15:58:35,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:58:35,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2022-11-23 15:58:35,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:35,781 INFO L225 Difference]: With dead ends: 7122 [2022-11-23 15:58:35,781 INFO L226 Difference]: Without dead ends: 7120 [2022-11-23 15:58:35,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:58:35,785 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1919 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:35,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 9903 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1210 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-23 15:58:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-11-23 15:58:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 7051. [2022-11-23 15:58:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 4071 states have (on average 1.2385163350528126) internal successors, (5042), 4209 states have internal predecessors, (5042), 2338 states have call successors, (2338), 617 states have call predecessors, (2338), 614 states have return successors, (2347), 2318 states have call predecessors, (2347), 2336 states have call successors, (2347) [2022-11-23 15:58:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 9727 transitions. [2022-11-23 15:58:36,241 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 9727 transitions. Word has length 104 [2022-11-23 15:58:36,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:36,241 INFO L495 AbstractCegarLoop]: Abstraction has 7051 states and 9727 transitions. [2022-11-23 15:58:36,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:58:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 9727 transitions. [2022-11-23 15:58:36,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-23 15:58:36,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:36,245 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:58:36,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 15:58:36,245 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 26 more)] === [2022-11-23 15:58:36,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:36,246 INFO L85 PathProgramCache]: Analyzing trace with hash 344070894, now seen corresponding path program 1 times [2022-11-23 15:58:36,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:36,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156896434] [2022-11-23 15:58:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:36,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-23 15:58:36,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156896434] [2022-11-23 15:58:36,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156896434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:36,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:36,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:58:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399948212] [2022-11-23 15:58:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:36,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:58:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:36,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:58:36,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:36,595 INFO L87 Difference]: Start difference. First operand 7051 states and 9727 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-23 15:58:39,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:42,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:44,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:46,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:58:46,237 INFO L93 Difference]: Finished difference Result 14132 states and 19765 transitions. [2022-11-23 15:58:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:58:46,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 126 [2022-11-23 15:58:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:58:46,266 INFO L225 Difference]: With dead ends: 14132 [2022-11-23 15:58:46,266 INFO L226 Difference]: Without dead ends: 7099 [2022-11-23 15:58:46,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:58:46,290 INFO L413 NwaCegarLoop]: 2719 mSDtfsCounter, 5 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:58:46,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5433 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 708 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-11-23 15:58:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-11-23 15:58:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7057. [2022-11-23 15:58:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 4077 states have (on average 1.2381653176355163) internal successors, (5048), 4215 states have internal predecessors, (5048), 2338 states have call successors, (2338), 617 states have call predecessors, (2338), 614 states have return successors, (2347), 2318 states have call predecessors, (2347), 2336 states have call successors, (2347) [2022-11-23 15:58:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 9733 transitions. [2022-11-23 15:58:46,861 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 9733 transitions. Word has length 126 [2022-11-23 15:58:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:58:46,862 INFO L495 AbstractCegarLoop]: Abstraction has 7057 states and 9733 transitions. [2022-11-23 15:58:46,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-23 15:58:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 9733 transitions. [2022-11-23 15:58:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-23 15:58:46,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:46,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:58:46,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 15:58:46,865 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 26 more)] === [2022-11-23 15:58:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash -965876920, now seen corresponding path program 1 times [2022-11-23 15:58:46,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:46,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162770743] [2022-11-23 15:58:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:58:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:58:47,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:58:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162770743] [2022-11-23 15:58:47,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162770743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:58:47,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:58:47,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:58:47,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683986946] [2022-11-23 15:58:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:58:47,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:58:47,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:58:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:58:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:58:47,299 INFO L87 Difference]: Start difference. First operand 7057 states and 9733 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:58:49,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:50,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:53,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:55,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:58:58,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:00,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:59:00,314 INFO L93 Difference]: Finished difference Result 7126 states and 9805 transitions. [2022-11-23 15:59:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:59:00,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2022-11-23 15:59:00,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:59:00,338 INFO L225 Difference]: With dead ends: 7126 [2022-11-23 15:59:00,338 INFO L226 Difference]: Without dead ends: 7124 [2022-11-23 15:59:00,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:59:00,342 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1916 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:59:00,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1918 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-11-23 15:59:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-23 15:59:00,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 7063. [2022-11-23 15:59:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 4080 states have (on average 1.2379901960784314) internal successors, (5051), 4218 states have internal predecessors, (5051), 2340 states have call successors, (2340), 618 states have call predecessors, (2340), 615 states have return successors, (2349), 2320 states have call predecessors, (2349), 2338 states have call successors, (2349) [2022-11-23 15:59:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 9740 transitions. [2022-11-23 15:59:00,751 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 9740 transitions. Word has length 109 [2022-11-23 15:59:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:59:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 7063 states and 9740 transitions. [2022-11-23 15:59:00,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:59:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 9740 transitions. [2022-11-23 15:59:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-23 15:59:00,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:00,754 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:59:00,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 15:59:00,754 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 26 more)] === [2022-11-23 15:59:00,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:00,755 INFO L85 PathProgramCache]: Analyzing trace with hash -56788860, now seen corresponding path program 1 times [2022-11-23 15:59:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:00,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941512317] [2022-11-23 15:59:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:00,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:59:01,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:01,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941512317] [2022-11-23 15:59:01,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941512317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:01,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:01,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:59:01,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134479516] [2022-11-23 15:59:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:01,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:59:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:01,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:59:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:59:01,213 INFO L87 Difference]: Start difference. First operand 7063 states and 9740 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 15:59:03,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:06,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:10,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:59:12,307 INFO L93 Difference]: Finished difference Result 7123 states and 9802 transitions. [2022-11-23 15:59:12,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:59:12,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2022-11-23 15:59:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:59:12,331 INFO L225 Difference]: With dead ends: 7123 [2022-11-23 15:59:12,331 INFO L226 Difference]: Without dead ends: 7121 [2022-11-23 15:59:12,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:59:12,335 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1850 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:59:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-23 15:59:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2022-11-23 15:59:12,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 7069. [2022-11-23 15:59:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 4083 states have (on average 1.2378153318638256) internal successors, (5054), 4221 states have internal predecessors, (5054), 2342 states have call successors, (2342), 619 states have call predecessors, (2342), 616 states have return successors, (2351), 2322 states have call predecessors, (2351), 2340 states have call successors, (2351) [2022-11-23 15:59:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 9747 transitions. [2022-11-23 15:59:12,707 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 9747 transitions. Word has length 114 [2022-11-23 15:59:12,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:59:12,708 INFO L495 AbstractCegarLoop]: Abstraction has 7069 states and 9747 transitions. [2022-11-23 15:59:12,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 15:59:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 9747 transitions. [2022-11-23 15:59:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-23 15:59:12,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:12,709 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:59:12,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 15:59:12,709 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 26 more)] === [2022-11-23 15:59:12,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1333247592, now seen corresponding path program 1 times [2022-11-23 15:59:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:12,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682365963] [2022-11-23 15:59:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:12,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-23 15:59:13,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:13,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682365963] [2022-11-23 15:59:13,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682365963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:13,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:13,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:59:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017951548] [2022-11-23 15:59:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:13,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:59:13,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:13,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:59:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:59:13,277 INFO L87 Difference]: Start difference. First operand 7069 states and 9747 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 15:59:16,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:21,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:24,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:59:26,729 INFO L93 Difference]: Finished difference Result 7153 states and 9842 transitions. [2022-11-23 15:59:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:59:26,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 135 [2022-11-23 15:59:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:59:26,761 INFO L225 Difference]: With dead ends: 7153 [2022-11-23 15:59:26,761 INFO L226 Difference]: Without dead ends: 7151 [2022-11-23 15:59:26,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:59:26,768 INFO L413 NwaCegarLoop]: 2737 mSDtfsCounter, 107 mSDsluCounter, 8145 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 10882 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:59:26,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 10882 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1412 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2022-11-23 15:59:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2022-11-23 15:59:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 7151. [2022-11-23 15:59:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 4135 states have (on average 1.2370012091898428) internal successors, (5115), 4273 states have internal predecessors, (5115), 2357 states have call successors, (2357), 634 states have call predecessors, (2357), 631 states have return successors, (2366), 2337 states have call predecessors, (2366), 2355 states have call successors, (2366) [2022-11-23 15:59:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 9838 transitions. [2022-11-23 15:59:27,250 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 9838 transitions. Word has length 135 [2022-11-23 15:59:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:59:27,251 INFO L495 AbstractCegarLoop]: Abstraction has 7151 states and 9838 transitions. [2022-11-23 15:59:27,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 15:59:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 9838 transitions. [2022-11-23 15:59:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-23 15:59:27,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:27,254 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:59:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 15:59:27,254 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 26 more)] === [2022-11-23 15:59:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1196991987, now seen corresponding path program 1 times [2022-11-23 15:59:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:27,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043192076] [2022-11-23 15:59:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:59:28,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:28,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043192076] [2022-11-23 15:59:28,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043192076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:28,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:28,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:59:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204100567] [2022-11-23 15:59:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:28,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:59:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:28,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:59:28,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:59:28,020 INFO L87 Difference]: Start difference. First operand 7151 states and 9838 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 15:59:29,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:30,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:32,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:34,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:36,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:39,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:59:42,242 INFO L93 Difference]: Finished difference Result 7202 states and 9891 transitions. [2022-11-23 15:59:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:59:42,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2022-11-23 15:59:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:59:42,267 INFO L225 Difference]: With dead ends: 7202 [2022-11-23 15:59:42,267 INFO L226 Difference]: Without dead ends: 7200 [2022-11-23 15:59:42,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:59:42,272 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1908 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:59:42,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-11-23 15:59:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-11-23 15:59:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7157. [2022-11-23 15:59:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7157 states, 4138 states have (on average 1.236829386176897) internal successors, (5118), 4276 states have internal predecessors, (5118), 2359 states have call successors, (2359), 635 states have call predecessors, (2359), 632 states have return successors, (2368), 2339 states have call predecessors, (2368), 2357 states have call successors, (2368) [2022-11-23 15:59:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7157 states to 7157 states and 9845 transitions. [2022-11-23 15:59:42,728 INFO L78 Accepts]: Start accepts. Automaton has 7157 states and 9845 transitions. Word has length 119 [2022-11-23 15:59:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:59:42,729 INFO L495 AbstractCegarLoop]: Abstraction has 7157 states and 9845 transitions. [2022-11-23 15:59:42,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 15:59:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7157 states and 9845 transitions. [2022-11-23 15:59:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-23 15:59:42,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:42,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:59:42,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 15:59:42,731 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 26 more)] === [2022-11-23 15:59:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash 328159060, now seen corresponding path program 1 times [2022-11-23 15:59:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:42,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436654050] [2022-11-23 15:59:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:59:43,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:43,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436654050] [2022-11-23 15:59:43,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436654050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:43,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:43,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:59:43,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202524024] [2022-11-23 15:59:43,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:43,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:59:43,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:43,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:59:43,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:59:43,152 INFO L87 Difference]: Start difference. First operand 7157 states and 9845 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:59:45,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:47,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:50,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:53,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:55,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:59:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:59:57,931 INFO L93 Difference]: Finished difference Result 7200 states and 9889 transitions. [2022-11-23 15:59:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:59:57,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2022-11-23 15:59:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:59:57,960 INFO L225 Difference]: With dead ends: 7200 [2022-11-23 15:59:57,961 INFO L226 Difference]: Without dead ends: 7198 [2022-11-23 15:59:57,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:59:57,965 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 1905 mSDsluCounter, 6297 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 9903 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:59:57,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 9903 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-11-23 15:59:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7198 states. [2022-11-23 15:59:58,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7198 to 7163. [2022-11-23 15:59:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7163 states, 4141 states have (on average 1.2366578121226757) internal successors, (5121), 4279 states have internal predecessors, (5121), 2361 states have call successors, (2361), 636 states have call predecessors, (2361), 633 states have return successors, (2370), 2341 states have call predecessors, (2370), 2359 states have call successors, (2370) [2022-11-23 15:59:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7163 states to 7163 states and 9852 transitions. [2022-11-23 15:59:58,302 INFO L78 Accepts]: Start accepts. Automaton has 7163 states and 9852 transitions. Word has length 124 [2022-11-23 15:59:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:59:58,303 INFO L495 AbstractCegarLoop]: Abstraction has 7163 states and 9852 transitions. [2022-11-23 15:59:58,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:59:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7163 states and 9852 transitions. [2022-11-23 15:59:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-23 15:59:58,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:58,306 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 15:59:58,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 15:59:58,306 INFO L420 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 26 more)] === [2022-11-23 15:59:58,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash -234815193, now seen corresponding path program 1 times [2022-11-23 15:59:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:58,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336966868] [2022-11-23 15:59:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:59:58,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336966868] [2022-11-23 15:59:58,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336966868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:58,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:58,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:59:58,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881000647] [2022-11-23 15:59:58,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:58,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:59:58,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:58,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:59:58,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:59:58,761 INFO L87 Difference]: Start difference. First operand 7163 states and 9852 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 16:00:01,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:04,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:08,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:10,477 INFO L93 Difference]: Finished difference Result 7197 states and 9886 transitions. [2022-11-23 16:00:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:00:10,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2022-11-23 16:00:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:00:10,507 INFO L225 Difference]: With dead ends: 7197 [2022-11-23 16:00:10,508 INFO L226 Difference]: Without dead ends: 7195 [2022-11-23 16:00:10,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:00:10,512 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1839 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:00:10,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-11-23 16:00:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7195 states. [2022-11-23 16:00:10,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7195 to 7169. [2022-11-23 16:00:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 4144 states have (on average 1.2364864864864864) internal successors, (5124), 4282 states have internal predecessors, (5124), 2363 states have call successors, (2363), 637 states have call predecessors, (2363), 634 states have return successors, (2372), 2343 states have call predecessors, (2372), 2361 states have call successors, (2372) [2022-11-23 16:00:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 9859 transitions. [2022-11-23 16:00:10,936 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 9859 transitions. Word has length 129 [2022-11-23 16:00:10,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:00:10,936 INFO L495 AbstractCegarLoop]: Abstraction has 7169 states and 9859 transitions. [2022-11-23 16:00:10,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 16:00:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 9859 transitions. [2022-11-23 16:00:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-23 16:00:10,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:00:10,940 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 16:00:10,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 16:00:10,940 INFO L420 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 26 more)] === [2022-11-23 16:00:10,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:00:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1990977650, now seen corresponding path program 1 times [2022-11-23 16:00:10,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:00:10,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831355562] [2022-11-23 16:00:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:00:10,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:00:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:00:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 16:00:11,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:00:11,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831355562] [2022-11-23 16:00:11,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831355562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:00:11,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:00:11,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:00:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406195921] [2022-11-23 16:00:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:00:11,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:00:11,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:00:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:00:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:00:11,323 INFO L87 Difference]: Start difference. First operand 7169 states and 9859 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 16:00:13,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:17,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:20,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:22,593 INFO L93 Difference]: Finished difference Result 7195 states and 9884 transitions. [2022-11-23 16:00:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:00:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2022-11-23 16:00:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:00:22,611 INFO L225 Difference]: With dead ends: 7195 [2022-11-23 16:00:22,611 INFO L226 Difference]: Without dead ends: 7193 [2022-11-23 16:00:22,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:00:22,616 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1836 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:00:22,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-23 16:00:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-11-23 16:00:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 7175. [2022-11-23 16:00:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 4147 states have (on average 1.2363154087292019) internal successors, (5127), 4285 states have internal predecessors, (5127), 2365 states have call successors, (2365), 638 states have call predecessors, (2365), 635 states have return successors, (2374), 2345 states have call predecessors, (2374), 2363 states have call successors, (2374) [2022-11-23 16:00:23,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 9866 transitions. [2022-11-23 16:00:23,018 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 9866 transitions. Word has length 134 [2022-11-23 16:00:23,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:00:23,018 INFO L495 AbstractCegarLoop]: Abstraction has 7175 states and 9866 transitions. [2022-11-23 16:00:23,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 16:00:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 9866 transitions. [2022-11-23 16:00:23,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-23 16:00:23,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:00:23,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 16:00:23,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 16:00:23,022 INFO L420 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 26 more)] === [2022-11-23 16:00:23,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:00:23,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1153284059, now seen corresponding path program 1 times [2022-11-23 16:00:23,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:00:23,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044694467] [2022-11-23 16:00:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:00:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:00:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:00:23,364 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 16:00:23,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:00:23,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044694467] [2022-11-23 16:00:23,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044694467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:00:23,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:00:23,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:00:23,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493258252] [2022-11-23 16:00:23,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:00:23,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:00:23,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:00:23,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:00:23,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:00:23,366 INFO L87 Difference]: Start difference. First operand 7175 states and 9866 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 16:00:26,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:28,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:30,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:33,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:35,860 INFO L93 Difference]: Finished difference Result 7193 states and 9882 transitions. [2022-11-23 16:00:35,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:00:35,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2022-11-23 16:00:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:00:35,879 INFO L225 Difference]: With dead ends: 7193 [2022-11-23 16:00:35,879 INFO L226 Difference]: Without dead ends: 7191 [2022-11-23 16:00:35,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:00:35,883 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 1833 mSDsluCounter, 6287 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:00:35,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 9883 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2022-11-23 16:00:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2022-11-23 16:00:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 7181. [2022-11-23 16:00:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7181 states, 4150 states have (on average 1.236144578313253) internal successors, (5130), 4288 states have internal predecessors, (5130), 2367 states have call successors, (2367), 639 states have call predecessors, (2367), 636 states have return successors, (2376), 2347 states have call predecessors, (2376), 2365 states have call successors, (2376) [2022-11-23 16:00:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 9873 transitions. [2022-11-23 16:00:36,240 INFO L78 Accepts]: Start accepts. Automaton has 7181 states and 9873 transitions. Word has length 139 [2022-11-23 16:00:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:00:36,240 INFO L495 AbstractCegarLoop]: Abstraction has 7181 states and 9873 transitions. [2022-11-23 16:00:36,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-23 16:00:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7181 states and 9873 transitions. [2022-11-23 16:00:36,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-23 16:00:36,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:00:36,243 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-23 16:00:36,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 16:00:36,243 INFO L420 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 26 more)] === [2022-11-23 16:00:36,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:00:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1224850064, now seen corresponding path program 1 times [2022-11-23 16:00:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:00:36,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040038987] [2022-11-23 16:00:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:00:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:00:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:00:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 16:00:36,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:00:36,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040038987] [2022-11-23 16:00:36,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040038987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:00:36,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:00:36,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:00:36,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156258244] [2022-11-23 16:00:36,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:00:36,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:00:36,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:00:36,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:00:36,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:00:36,555 INFO L87 Difference]: Start difference. First operand 7181 states and 9873 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 16:00:39,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:42,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:46,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:48,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:48,416 INFO L93 Difference]: Finished difference Result 7191 states and 9880 transitions. [2022-11-23 16:00:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:00:48,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2022-11-23 16:00:48,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:00:48,483 INFO L225 Difference]: With dead ends: 7191 [2022-11-23 16:00:48,483 INFO L226 Difference]: Without dead ends: 6996 [2022-11-23 16:00:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:00:48,493 INFO L413 NwaCegarLoop]: 3597 mSDtfsCounter, 1829 mSDsluCounter, 6288 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 9885 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:00:48,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 9885 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1211 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-23 16:00:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6996 states. [2022-11-23 16:00:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6996 to 6992. [2022-11-23 16:00:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 4050 states have (on average 1.2392592592592593) internal successors, (5019), 4185 states have internal predecessors, (5019), 2302 states have call successors, (2302), 615 states have call predecessors, (2302), 612 states have return successors, (2311), 2284 states have call predecessors, (2311), 2300 states have call successors, (2311) [2022-11-23 16:00:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 9632 transitions. [2022-11-23 16:00:48,854 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 9632 transitions. Word has length 144 [2022-11-23 16:00:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:00:48,855 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 9632 transitions. [2022-11-23 16:00:48,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 16:00:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 9632 transitions. [2022-11-23 16:00:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-23 16:00:48,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:00:48,859 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 16:00:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 16:00:48,859 INFO L420 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 26 more)] === [2022-11-23 16:00:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:00:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash 983983816, now seen corresponding path program 1 times [2022-11-23 16:00:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:00:48,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563845705] [2022-11-23 16:00:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:00:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:00:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:00:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-23 16:00:49,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:00:49,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563845705] [2022-11-23 16:00:49,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563845705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:00:49,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:00:49,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:00:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653239288] [2022-11-23 16:00:49,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:00:49,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:00:49,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:00:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:00:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:00:49,800 INFO L87 Difference]: Start difference. First operand 6992 states and 9632 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 16:00:52,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:55,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:58,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:00:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:59,830 INFO L93 Difference]: Finished difference Result 14103 states and 19743 transitions. [2022-11-23 16:00:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:00:59,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 188 [2022-11-23 16:00:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:00:59,862 INFO L225 Difference]: With dead ends: 14103 [2022-11-23 16:00:59,862 INFO L226 Difference]: Without dead ends: 8386 [2022-11-23 16:00:59,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:00:59,893 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 599 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:00:59,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 5812 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 719 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-11-23 16:00:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8386 states. [2022-11-23 16:01:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8386 to 6992. [2022-11-23 16:01:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 4050 states have (on average 1.2390123456790123) internal successors, (5018), 4185 states have internal predecessors, (5018), 2302 states have call successors, (2302), 615 states have call predecessors, (2302), 612 states have return successors, (2311), 2284 states have call predecessors, (2311), 2300 states have call successors, (2311) [2022-11-23 16:01:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 9631 transitions. [2022-11-23 16:01:00,401 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 9631 transitions. Word has length 188 [2022-11-23 16:01:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:00,401 INFO L495 AbstractCegarLoop]: Abstraction has 6992 states and 9631 transitions. [2022-11-23 16:01:00,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-23 16:01:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 9631 transitions. [2022-11-23 16:01:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-23 16:01:00,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:00,404 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 16:01:00,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 16:01:00,405 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 26 more)] === [2022-11-23 16:01:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash -440165128, now seen corresponding path program 1 times [2022-11-23 16:01:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:00,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863422269] [2022-11-23 16:01:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:00,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:00,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:01:00,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1531681500] [2022-11-23 16:01:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:00,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:00,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:00,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:00,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:01:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:02,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 3769 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 16:01:02,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-23 16:01:02,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:01:02,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863422269] [2022-11-23 16:01:02,528 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:01:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531681500] [2022-11-23 16:01:02,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531681500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:02,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:02,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 16:01:02,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815028138] [2022-11-23 16:01:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:02,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:01:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:01:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-23 16:01:02,530 INFO L87 Difference]: Start difference. First operand 6992 states and 9631 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2022-11-23 16:01:06,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:13,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:16,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:22,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:26,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:26,909 INFO L93 Difference]: Finished difference Result 14494 states and 20091 transitions. [2022-11-23 16:01:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 16:01:26,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 202 [2022-11-23 16:01:26,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:26,933 INFO L225 Difference]: With dead ends: 14494 [2022-11-23 16:01:26,933 INFO L226 Difference]: Without dead ends: 7515 [2022-11-23 16:01:26,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-23 16:01:26,949 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 228 mSDsluCounter, 25917 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 295 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 28865 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:26,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 28865 Invalid, 4393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [295 Valid, 4095 Invalid, 3 Unknown, 0 Unchecked, 23.5s Time] [2022-11-23 16:01:26,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-11-23 16:01:27,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 7028. [2022-11-23 16:01:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 4074 states have (on average 1.237604320078547) internal successors, (5042), 4209 states have internal predecessors, (5042), 2314 states have call successors, (2314), 615 states have call predecessors, (2314), 612 states have return successors, (2323), 2296 states have call predecessors, (2323), 2312 states have call successors, (2323) [2022-11-23 16:01:27,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 9679 transitions. [2022-11-23 16:01:27,355 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 9679 transitions. Word has length 202 [2022-11-23 16:01:27,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:27,356 INFO L495 AbstractCegarLoop]: Abstraction has 7028 states and 9679 transitions. [2022-11-23 16:01:27,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2022-11-23 16:01:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 9679 transitions. [2022-11-23 16:01:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-23 16:01:27,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:27,360 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 16:01:27,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:01:27,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-23 16:01:27,574 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 26 more)] === [2022-11-23 16:01:27,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash 824139137, now seen corresponding path program 1 times [2022-11-23 16:01:27,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:27,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403208385] [2022-11-23 16:01:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:27,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:27,761 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:01:27,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359137385] [2022-11-23 16:01:27,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:27,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:27,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:27,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:27,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:01:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:29,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 3818 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 16:01:29,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-23 16:01:30,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-23 16:01:31,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:31,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403208385] [2022-11-23 16:01:31,055 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:01:31,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359137385] [2022-11-23 16:01:31,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359137385] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:31,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 16:01:31,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-23 16:01:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921341150] [2022-11-23 16:01:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:31,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 16:01:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 16:01:31,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-23 16:01:31,059 INFO L87 Difference]: Start difference. First operand 7028 states and 9679 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-23 16:01:34,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:36,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:39,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:42,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:47,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:49,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:01:53,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:01,658 INFO L93 Difference]: Finished difference Result 12272 states and 16877 transitions. [2022-11-23 16:02:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 16:02:01,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 207 [2022-11-23 16:02:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:01,695 INFO L225 Difference]: With dead ends: 12272 [2022-11-23 16:02:01,695 INFO L226 Difference]: Without dead ends: 12270 [2022-11-23 16:02:01,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-23 16:02:01,700 INFO L413 NwaCegarLoop]: 4410 mSDtfsCounter, 2918 mSDsluCounter, 17156 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 26 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 21566 SdHoareTripleChecker+Invalid, 4272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:01,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2923 Valid, 21566 Invalid, 4272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 4241 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2022-11-23 16:02:01,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12270 states. [2022-11-23 16:02:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12270 to 12082. [2022-11-23 16:02:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12082 states, 7011 states have (on average 1.2364855227499643) internal successors, (8669), 7223 states have internal predecessors, (8669), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-23 16:02:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12082 states to 12082 states and 16665 transitions. [2022-11-23 16:02:02,412 INFO L78 Accepts]: Start accepts. Automaton has 12082 states and 16665 transitions. Word has length 207 [2022-11-23 16:02:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:02:02,413 INFO L495 AbstractCegarLoop]: Abstraction has 12082 states and 16665 transitions. [2022-11-23 16:02:02,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-23 16:02:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 12082 states and 16665 transitions. [2022-11-23 16:02:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-23 16:02:02,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:02:02,418 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 16:02:02,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:02:02,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-23 16:02:02,627 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 26 more)] === [2022-11-23 16:02:02,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:02:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2070295488, now seen corresponding path program 1 times [2022-11-23 16:02:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:02:02,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401746963] [2022-11-23 16:02:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:02,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:02:02,861 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:02:02,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528873785] [2022-11-23 16:02:02,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:02,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:02:02,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:02:02,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:02:02,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:02:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:02:04,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 3829 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 16:02:04,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:02:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-23 16:02:05,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:02:05,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:02:05,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401746963] [2022-11-23 16:02:05,059 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:02:05,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528873785] [2022-11-23 16:02:05,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528873785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:02:05,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:02:05,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:02:05,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508026006] [2022-11-23 16:02:05,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:02:05,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:02:05,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:02:05,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:02:05,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:05,061 INFO L87 Difference]: Start difference. First operand 12082 states and 16665 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-23 16:02:07,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:09,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:12,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:14,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:16,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:16,747 INFO L93 Difference]: Finished difference Result 24147 states and 33307 transitions. [2022-11-23 16:02:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:02:16,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2022-11-23 16:02:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:16,789 INFO L225 Difference]: With dead ends: 24147 [2022-11-23 16:02:16,790 INFO L226 Difference]: Without dead ends: 12081 [2022-11-23 16:02:16,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:16,829 INFO L413 NwaCegarLoop]: 3263 mSDtfsCounter, 1567 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:16,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 5953 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 721 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-11-23 16:02:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12081 states. [2022-11-23 16:02:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12081 to 12080. [2022-11-23 16:02:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12080 states, 7009 states have (on average 1.236267655871023) internal successors, (8665), 7221 states have internal predecessors, (8665), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-23 16:02:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12080 states to 12080 states and 16661 transitions. [2022-11-23 16:02:17,561 INFO L78 Accepts]: Start accepts. Automaton has 12080 states and 16661 transitions. Word has length 210 [2022-11-23 16:02:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:02:17,561 INFO L495 AbstractCegarLoop]: Abstraction has 12080 states and 16661 transitions. [2022-11-23 16:02:17,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-23 16:02:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 12080 states and 16661 transitions. [2022-11-23 16:02:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-23 16:02:17,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:02:17,563 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:02:17,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:02:17,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:02:17,764 INFO L420 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 26 more)] === [2022-11-23 16:02:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:02:17,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1006524517, now seen corresponding path program 1 times [2022-11-23 16:02:17,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:02:17,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381768965] [2022-11-23 16:02:17,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:02:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:02:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-23 16:02:19,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:02:19,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381768965] [2022-11-23 16:02:19,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381768965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:02:19,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:02:19,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:02:19,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668609967] [2022-11-23 16:02:19,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:02:19,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:02:19,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:02:19,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:02:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:02:19,160 INFO L87 Difference]: Start difference. First operand 12080 states and 16661 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 16:02:22,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:23,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:26,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:29,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:31,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:35,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:35,444 INFO L93 Difference]: Finished difference Result 27140 states and 38096 transitions. [2022-11-23 16:02:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:02:35,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 209 [2022-11-23 16:02:35,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:35,506 INFO L225 Difference]: With dead ends: 27140 [2022-11-23 16:02:35,506 INFO L226 Difference]: Without dead ends: 15076 [2022-11-23 16:02:35,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:02:35,548 INFO L413 NwaCegarLoop]: 3547 mSDtfsCounter, 1242 mSDsluCounter, 5791 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 686 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 9338 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:35,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 9338 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1124 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2022-11-23 16:02:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15076 states. [2022-11-23 16:02:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15076 to 12080. [2022-11-23 16:02:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12080 states, 7009 states have (on average 1.2354116136396063) internal successors, (8659), 7221 states have internal predecessors, (8659), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-23 16:02:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12080 states to 12080 states and 16655 transitions. [2022-11-23 16:02:36,381 INFO L78 Accepts]: Start accepts. Automaton has 12080 states and 16655 transitions. Word has length 209 [2022-11-23 16:02:36,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:02:36,382 INFO L495 AbstractCegarLoop]: Abstraction has 12080 states and 16655 transitions. [2022-11-23 16:02:36,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 16:02:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand 12080 states and 16655 transitions. [2022-11-23 16:02:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-23 16:02:36,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:02:36,387 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:02:36,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 16:02:36,388 INFO L420 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 26 more)] === [2022-11-23 16:02:36,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:02:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash 331889292, now seen corresponding path program 1 times [2022-11-23 16:02:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:02:36,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984616381] [2022-11-23 16:02:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:36,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:02:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:02:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-23 16:02:37,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:02:37,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984616381] [2022-11-23 16:02:37,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984616381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:02:37,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:02:37,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:02:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938508402] [2022-11-23 16:02:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:02:37,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:02:37,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:02:37,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:02:37,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:37,172 INFO L87 Difference]: Start difference. First operand 12080 states and 16655 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-23 16:02:39,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:41,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:43,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:47,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:48,609 INFO L93 Difference]: Finished difference Result 24216 states and 33559 transitions. [2022-11-23 16:02:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:02:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 237 [2022-11-23 16:02:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:48,641 INFO L225 Difference]: With dead ends: 24216 [2022-11-23 16:02:48,641 INFO L226 Difference]: Without dead ends: 12152 [2022-11-23 16:02:48,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:48,666 INFO L413 NwaCegarLoop]: 2714 mSDtfsCounter, 11 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:48,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5413 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 704 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-23 16:02:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12152 states. [2022-11-23 16:02:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12152 to 12089. [2022-11-23 16:02:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12089 states, 7018 states have (on average 1.2351097178683386) internal successors, (8668), 7230 states have internal predecessors, (8668), 3984 states have call successors, (3984), 1062 states have call predecessors, (3984), 1059 states have return successors, (4012), 3951 states have call predecessors, (4012), 3982 states have call successors, (4012) [2022-11-23 16:02:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12089 states to 12089 states and 16664 transitions. [2022-11-23 16:02:49,336 INFO L78 Accepts]: Start accepts. Automaton has 12089 states and 16664 transitions. Word has length 237 [2022-11-23 16:02:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:02:49,337 INFO L495 AbstractCegarLoop]: Abstraction has 12089 states and 16664 transitions. [2022-11-23 16:02:49,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (42), 1 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-23 16:02:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 12089 states and 16664 transitions. [2022-11-23 16:02:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-23 16:02:49,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:02:49,341 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 16:02:49,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 16:02:49,341 INFO L420 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 26 more)] === [2022-11-23 16:02:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:02:49,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1675307638, now seen corresponding path program 1 times [2022-11-23 16:02:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:02:49,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974624730] [2022-11-23 16:02:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:02:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:02:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-23 16:02:50,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:02:50,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974624730] [2022-11-23 16:02:50,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974624730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:02:50,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:02:50,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:02:50,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206364607] [2022-11-23 16:02:50,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:02:50,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:02:50,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:02:50,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:02:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:50,220 INFO L87 Difference]: Start difference. First operand 12089 states and 16664 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 16:02:52,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:54,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:57,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:02:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:59,524 INFO L93 Difference]: Finished difference Result 23007 states and 31738 transitions. [2022-11-23 16:02:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:02:59,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 242 [2022-11-23 16:02:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:59,557 INFO L225 Difference]: With dead ends: 23007 [2022-11-23 16:02:59,557 INFO L226 Difference]: Without dead ends: 12286 [2022-11-23 16:02:59,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:02:59,581 INFO L413 NwaCegarLoop]: 3015 mSDtfsCounter, 2024 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:59,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 4882 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-23 16:02:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12286 states. [2022-11-23 16:03:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12286 to 12278. [2022-11-23 16:03:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12278 states, 7135 states have (on average 1.2358794674141556) internal successors, (8818), 7347 states have internal predecessors, (8818), 4029 states have call successors, (4029), 1089 states have call predecessors, (4029), 1086 states have return successors, (4057), 3996 states have call predecessors, (4057), 4027 states have call successors, (4057) [2022-11-23 16:03:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12278 states to 12278 states and 16904 transitions. [2022-11-23 16:03:00,300 INFO L78 Accepts]: Start accepts. Automaton has 12278 states and 16904 transitions. Word has length 242 [2022-11-23 16:03:00,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:00,301 INFO L495 AbstractCegarLoop]: Abstraction has 12278 states and 16904 transitions. [2022-11-23 16:03:00,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-23 16:03:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 12278 states and 16904 transitions. [2022-11-23 16:03:00,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-23 16:03:00,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:00,305 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:03:00,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 16:03:00,305 INFO L420 AbstractCegarLoop]: === Iteration 34 === 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 26 more)] === [2022-11-23 16:03:00,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash 286332584, now seen corresponding path program 1 times [2022-11-23 16:03:00,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:00,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668192331] [2022-11-23 16:03:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:00,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-23 16:03:01,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:01,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668192331] [2022-11-23 16:03:01,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668192331] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:03:01,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369859422] [2022-11-23 16:03:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:01,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:01,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:01,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:03:01,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 16:03:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:03,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 5651 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 16:03:03,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:03:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-23 16:03:03,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:03:03,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369859422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:03,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 16:03:03,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-23 16:03:03,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996636865] [2022-11-23 16:03:03,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:03,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:03:03,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:03:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 16:03:03,869 INFO L87 Difference]: Start difference. First operand 12278 states and 16904 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-23 16:03:06,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:08,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:11,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:13,254 INFO L93 Difference]: Finished difference Result 25933 states and 35777 transitions. [2022-11-23 16:03:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:03:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 247 [2022-11-23 16:03:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:13,314 INFO L225 Difference]: With dead ends: 25933 [2022-11-23 16:03:13,314 INFO L226 Difference]: Without dead ends: 15023 [2022-11-23 16:03:13,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 16:03:13,350 INFO L413 NwaCegarLoop]: 3239 mSDtfsCounter, 2908 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2908 SdHoareTripleChecker+Valid, 4922 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:13,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2908 Valid, 4922 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-11-23 16:03:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15023 states. [2022-11-23 16:03:14,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15023 to 14998. [2022-11-23 16:03:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14998 states, 8725 states have (on average 1.2374785100286534) internal successors, (10797), 8973 states have internal predecessors, (10797), 4929 states have call successors, (4929), 1321 states have call predecessors, (4929), 1316 states have return successors, (4959), 4883 states have call predecessors, (4959), 4927 states have call successors, (4959) [2022-11-23 16:03:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14998 states to 14998 states and 20685 transitions. [2022-11-23 16:03:14,442 INFO L78 Accepts]: Start accepts. Automaton has 14998 states and 20685 transitions. Word has length 247 [2022-11-23 16:03:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:14,443 INFO L495 AbstractCegarLoop]: Abstraction has 14998 states and 20685 transitions. [2022-11-23 16:03:14,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-23 16:03:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14998 states and 20685 transitions. [2022-11-23 16:03:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-23 16:03:14,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:14,454 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:03:14,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 16:03:14,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-23 16:03:14,654 INFO L420 AbstractCegarLoop]: === Iteration 35 === 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 26 more)] === [2022-11-23 16:03:14,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:14,655 INFO L85 PathProgramCache]: Analyzing trace with hash 468364346, now seen corresponding path program 1 times [2022-11-23 16:03:14,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:14,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530492125] [2022-11-23 16:03:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:14,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:15,079 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:03:15,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75427798] [2022-11-23 16:03:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:15,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:15,080 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:03:15,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 16:03:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:17,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 6381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 16:03:17,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:03:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-23 16:03:17,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:03:17,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:17,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530492125] [2022-11-23 16:03:17,640 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:03:17,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75427798] [2022-11-23 16:03:17,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75427798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:17,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:17,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:03:17,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191710835] [2022-11-23 16:03:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:03:17,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:17,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:03:17,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:03:17,643 INFO L87 Difference]: Start difference. First operand 14998 states and 20685 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-23 16:03:20,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:23,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:26,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:30,082 INFO L93 Difference]: Finished difference Result 29552 states and 41039 transitions. [2022-11-23 16:03:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:03:30,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289 [2022-11-23 16:03:30,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:30,140 INFO L225 Difference]: With dead ends: 29552 [2022-11-23 16:03:30,140 INFO L226 Difference]: Without dead ends: 15922 [2022-11-23 16:03:30,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:03:30,175 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 322 mSDsluCounter, 5828 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 196 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 8942 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:30,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 8942 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1115 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2022-11-23 16:03:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15922 states. [2022-11-23 16:03:31,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15922 to 15000. [2022-11-23 16:03:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15000 states, 8727 states have (on average 1.2374240861693595) internal successors, (10799), 8975 states have internal predecessors, (10799), 4929 states have call successors, (4929), 1321 states have call predecessors, (4929), 1316 states have return successors, (4959), 4883 states have call predecessors, (4959), 4927 states have call successors, (4959) [2022-11-23 16:03:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15000 states to 15000 states and 20687 transitions. [2022-11-23 16:03:31,179 INFO L78 Accepts]: Start accepts. Automaton has 15000 states and 20687 transitions. Word has length 289 [2022-11-23 16:03:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:31,180 INFO L495 AbstractCegarLoop]: Abstraction has 15000 states and 20687 transitions. [2022-11-23 16:03:31,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-23 16:03:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15000 states and 20687 transitions. [2022-11-23 16:03:31,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-11-23 16:03:31,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:31,185 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:03:31,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 16:03:31,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-23 16:03:31,387 INFO L420 AbstractCegarLoop]: === Iteration 36 === 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 26 more)] === [2022-11-23 16:03:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 872189018, now seen corresponding path program 1 times [2022-11-23 16:03:31,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:31,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924644309] [2022-11-23 16:03:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:31,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:31,721 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:03:31,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308102740] [2022-11-23 16:03:31,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:31,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:31,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:31,723 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:03:31,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 16:03:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:36,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 6412 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 16:03:36,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:03:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-23 16:03:36,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:03:36,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:36,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924644309] [2022-11-23 16:03:36,769 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:03:36,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308102740] [2022-11-23 16:03:36,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308102740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:03:36,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:03:36,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:03:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701843604] [2022-11-23 16:03:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:03:36,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:03:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:03:36,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:03:36,772 INFO L87 Difference]: Start difference. First operand 15000 states and 20687 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-23 16:03:39,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:43,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:46,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:48,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:50,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:03:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:03:53,063 INFO L93 Difference]: Finished difference Result 31359 states and 43570 transitions. [2022-11-23 16:03:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:03:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 295 [2022-11-23 16:03:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:03:53,123 INFO L225 Difference]: With dead ends: 31359 [2022-11-23 16:03:53,123 INFO L226 Difference]: Without dead ends: 16375 [2022-11-23 16:03:53,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:03:53,169 INFO L413 NwaCegarLoop]: 3084 mSDtfsCounter, 300 mSDsluCounter, 5793 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 190 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 8877 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:03:53,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 8877 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1112 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-11-23 16:03:53,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16375 states. [2022-11-23 16:03:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16375 to 15010. [2022-11-23 16:03:54,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15010 states, 8737 states have (on average 1.2371523406203502) internal successors, (10809), 8985 states have internal predecessors, (10809), 4929 states have call successors, (4929), 1321 states have call predecessors, (4929), 1316 states have return successors, (4959), 4883 states have call predecessors, (4959), 4927 states have call successors, (4959) [2022-11-23 16:03:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15010 states to 15010 states and 20697 transitions. [2022-11-23 16:03:54,265 INFO L78 Accepts]: Start accepts. Automaton has 15010 states and 20697 transitions. Word has length 295 [2022-11-23 16:03:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:03:54,266 INFO L495 AbstractCegarLoop]: Abstraction has 15010 states and 20697 transitions. [2022-11-23 16:03:54,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-23 16:03:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 15010 states and 20697 transitions. [2022-11-23 16:03:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-23 16:03:54,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:03:54,273 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:03:54,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-23 16:03:54,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:54,474 INFO L420 AbstractCegarLoop]: === Iteration 37 === 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 26 more)] === [2022-11-23 16:03:54,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:03:54,474 INFO L85 PathProgramCache]: Analyzing trace with hash 532558161, now seen corresponding path program 1 times [2022-11-23 16:03:54,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:03:54,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248962476] [2022-11-23 16:03:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:54,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:03:54,795 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:03:54,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341206839] [2022-11-23 16:03:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:03:54,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:54,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:54,797 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:03:54,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 16:03:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:59,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 6485 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-23 16:03:59,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:04:01,482 INFO L321 Elim1Store]: treesize reduction 9770, result has 8.9 percent of original size [2022-11-23 16:04:01,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 159 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1118 treesize of output 1762 [2022-11-23 16:04:01,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1264 treesize of output 984 [2022-11-23 16:04:01,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 984 treesize of output 704 [2022-11-23 16:04:01,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,428 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:04:02,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,697 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:04:02,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:02,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:03,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:03,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:03,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:03,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:03,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:04,460 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:04:05,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:05,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:06,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:06,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:06,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:06,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:06,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 148 [2022-11-23 16:04:06,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 157 [2022-11-23 16:04:07,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 124 [2022-11-23 16:04:08,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 203 [2022-11-23 16:04:08,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 162 [2022-11-23 16:04:08,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 121 [2022-11-23 16:04:08,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 193 [2022-11-23 16:04:08,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 121 [2022-11-23 16:04:08,493 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_13604 Int) (atomic_set_~v.offset Int)) (and (= (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_13604)) |c_#memory_int|) (<= |c_atomic_set_#in~v.offset| atomic_set_~v.offset))) is different from true [2022-11-23 16:04:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:04:08,532 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:04:08,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 78 treesize of output 95 [2022-11-23 16:04:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-23 16:04:10,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:04:10,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:04:10,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248962476] [2022-11-23 16:04:10,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:04:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341206839] [2022-11-23 16:04:10,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341206839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:04:10,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:04:10,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-23 16:04:10,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82575370] [2022-11-23 16:04:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:04:10,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 16:04:10,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:04:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 16:04:10,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2022-11-23 16:04:10,111 INFO L87 Difference]: Start difference. First operand 15010 states and 20697 transitions. Second operand has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) [2022-11-23 16:04:16,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:18,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:20,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:22,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:24,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 16:04:25,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:26,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:28,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:29,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:31,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:33,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:04:41,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:05:12,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:05:41,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:05:41,902 INFO L93 Difference]: Finished difference Result 33068 states and 46651 transitions. [2022-11-23 16:05:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 16:05:41,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) Word has length 312 [2022-11-23 16:05:41,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:05:41,984 INFO L225 Difference]: With dead ends: 33068 [2022-11-23 16:05:41,984 INFO L226 Difference]: Without dead ends: 19426 [2022-11-23 16:05:42,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=125, Invalid=808, Unknown=1, NotChecked=58, Total=992 [2022-11-23 16:05:42,024 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 2175 mSDsluCounter, 28320 mSDsCounter, 0 mSdLazyCounter, 35328 mSolverCounterSat, 1892 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 31782 SdHoareTripleChecker+Invalid, 41799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1892 IncrementalHoareTripleChecker+Valid, 35328 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 4528 IncrementalHoareTripleChecker+Unchecked, 88.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:05:42,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 31782 Invalid, 41799 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1892 Valid, 35328 Invalid, 51 Unknown, 4528 Unchecked, 88.4s Time] [2022-11-23 16:05:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19426 states. [2022-11-23 16:05:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19426 to 15577. [2022-11-23 16:05:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15577 states, 9089 states have (on average 1.2396303223676972) internal successors, (11267), 9359 states have internal predecessors, (11267), 5080 states have call successors, (5080), 1372 states have call predecessors, (5080), 1380 states have return successors, (5141), 5030 states have call predecessors, (5141), 5078 states have call successors, (5141) [2022-11-23 16:05:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15577 states to 15577 states and 21488 transitions. [2022-11-23 16:05:43,099 INFO L78 Accepts]: Start accepts. Automaton has 15577 states and 21488 transitions. Word has length 312 [2022-11-23 16:05:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:05:43,099 INFO L495 AbstractCegarLoop]: Abstraction has 15577 states and 21488 transitions. [2022-11-23 16:05:43,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 8 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (57), 8 states have call predecessors, (57), 8 states have call successors, (57) [2022-11-23 16:05:43,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15577 states and 21488 transitions. [2022-11-23 16:05:43,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-23 16:05:43,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:05:43,109 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:05:43,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 16:05:43,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-23 16:05:43,335 INFO L420 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 26 more)] === [2022-11-23 16:05:43,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:05:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash -799628991, now seen corresponding path program 1 times [2022-11-23 16:05:43,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:05:43,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319832527] [2022-11-23 16:05:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:43,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:05:43,590 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:05:43,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445270111] [2022-11-23 16:05:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:05:43,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:05:43,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:05:43,591 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:05:43,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 16:05:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:05:49,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 6598 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 16:05:49,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:05:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-23 16:05:49,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:05:49,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:05:49,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319832527] [2022-11-23 16:05:49,494 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:05:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445270111] [2022-11-23 16:05:49,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445270111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:05:49,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:05:49,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 16:05:49,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765475841] [2022-11-23 16:05:49,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:05:49,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:05:49,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:05:49,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:05:49,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:05:49,496 INFO L87 Difference]: Start difference. First operand 15577 states and 21488 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 16:05:52,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:05:55,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:05:58,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:01,366 INFO L93 Difference]: Finished difference Result 29865 states and 41245 transitions. [2022-11-23 16:06:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:06:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) Word has length 337 [2022-11-23 16:06:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:01,417 INFO L225 Difference]: With dead ends: 29865 [2022-11-23 16:06:01,418 INFO L226 Difference]: Without dead ends: 15609 [2022-11-23 16:06:01,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:06:01,457 INFO L413 NwaCegarLoop]: 2711 mSDtfsCounter, 0 mSDsluCounter, 8127 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10838 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:01,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10838 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1413 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-23 16:06:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15609 states. [2022-11-23 16:06:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15609 to 15597. [2022-11-23 16:06:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15597 states, 9104 states have (on average 1.2392355008787346) internal successors, (11282), 9374 states have internal predecessors, (11282), 5080 states have call successors, (5080), 1372 states have call predecessors, (5080), 1385 states have return successors, (5151), 5035 states have call predecessors, (5151), 5078 states have call successors, (5151) [2022-11-23 16:06:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15597 states to 15597 states and 21513 transitions. [2022-11-23 16:06:02,753 INFO L78 Accepts]: Start accepts. Automaton has 15597 states and 21513 transitions. Word has length 337 [2022-11-23 16:06:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:02,753 INFO L495 AbstractCegarLoop]: Abstraction has 15597 states and 21513 transitions. [2022-11-23 16:06:02,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (61), 2 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 16:06:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 15597 states and 21513 transitions. [2022-11-23 16:06:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-23 16:06:02,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:02,764 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:02,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 16:06:02,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-23 16:06:02,991 INFO L420 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 26 more)] === [2022-11-23 16:06:02,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:02,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1481443836, now seen corresponding path program 1 times [2022-11-23 16:06:02,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:02,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821154017] [2022-11-23 16:06:02,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:02,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:03,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:06:03,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255361243] [2022-11-23 16:06:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:03,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:06:03,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:06:03,450 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:06:03,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 16:06:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:08,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 6647 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-23 16:06:08,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:06:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-11-23 16:06:10,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:06:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-23 16:06:11,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:11,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821154017] [2022-11-23 16:06:11,053 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:06:11,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255361243] [2022-11-23 16:06:11,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255361243] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 16:06:11,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 16:06:11,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2022-11-23 16:06:11,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171633533] [2022-11-23 16:06:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:11,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 16:06:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:11,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 16:06:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:06:11,060 INFO L87 Difference]: Start difference. First operand 15597 states and 21513 transitions. Second operand has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-23 16:06:15,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:19,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:24,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:37,481 INFO L93 Difference]: Finished difference Result 22416 states and 31153 transitions. [2022-11-23 16:06:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 16:06:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) Word has length 350 [2022-11-23 16:06:37,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:37,551 INFO L225 Difference]: With dead ends: 22416 [2022-11-23 16:06:37,551 INFO L226 Difference]: Without dead ends: 22414 [2022-11-23 16:06:37,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2022-11-23 16:06:37,563 INFO L413 NwaCegarLoop]: 3917 mSDtfsCounter, 6490 mSDsluCounter, 18242 mSDsCounter, 0 mSdLazyCounter, 5136 mSolverCounterSat, 3194 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 22159 SdHoareTripleChecker+Invalid, 8333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3194 IncrementalHoareTripleChecker+Valid, 5136 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:37,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6669 Valid, 22159 Invalid, 8333 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3194 Valid, 5136 Invalid, 3 Unknown, 0 Unchecked, 24.2s Time] [2022-11-23 16:06:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22414 states. [2022-11-23 16:06:39,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22414 to 21361. [2022-11-23 16:06:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21361 states, 12476 states have (on average 1.2390990702148124) internal successors, (15459), 12839 states have internal predecessors, (15459), 6955 states have call successors, (6955), 1885 states have call predecessors, (6955), 1902 states have return successors, (7071), 6886 states have call predecessors, (7071), 6953 states have call successors, (7071) [2022-11-23 16:06:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21361 states to 21361 states and 29485 transitions. [2022-11-23 16:06:39,123 INFO L78 Accepts]: Start accepts. Automaton has 21361 states and 29485 transitions. Word has length 350 [2022-11-23 16:06:39,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:39,123 INFO L495 AbstractCegarLoop]: Abstraction has 21361 states and 29485 transitions. [2022-11-23 16:06:39,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (62), 4 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-23 16:06:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 21361 states and 29485 transitions. [2022-11-23 16:06:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-23 16:06:39,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:39,135 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:39,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 16:06:39,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-23 16:06:39,336 INFO L420 AbstractCegarLoop]: === Iteration 40 === 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 26 more)] === [2022-11-23 16:06:39,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1564944477, now seen corresponding path program 1 times [2022-11-23 16:06:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:39,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836698321] [2022-11-23 16:06:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:39,593 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:06:39,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136737357] [2022-11-23 16:06:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:39,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:06:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:06:39,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:06:39,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 16:06:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:06:42,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 6658 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 16:06:42,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:06:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-11-23 16:06:43,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:06:43,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:06:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836698321] [2022-11-23 16:06:43,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:06:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136737357] [2022-11-23 16:06:43,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136737357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:06:43,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:06:43,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:06:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8538414] [2022-11-23 16:06:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:06:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:06:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:06:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:06:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:06:43,532 INFO L87 Difference]: Start difference. First operand 21361 states and 29485 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-23 16:06:44,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:47,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:49,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:52,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:06:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:06:56,102 INFO L93 Difference]: Finished difference Result 53334 states and 73596 transitions. [2022-11-23 16:06:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:06:56,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 353 [2022-11-23 16:06:56,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:06:56,221 INFO L225 Difference]: With dead ends: 53334 [2022-11-23 16:06:56,222 INFO L226 Difference]: Without dead ends: 33347 [2022-11-23 16:06:56,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:06:56,273 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 2785 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6199 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:06:56,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 6199 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 709 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 16:06:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33347 states. [2022-11-23 16:06:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33347 to 33165. [2022-11-23 16:06:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33165 states, 19351 states have (on average 1.2375071055759392) internal successors, (23947), 19911 states have internal predecessors, (23947), 10792 states have call successors, (10792), 2965 states have call predecessors, (10792), 2994 states have return successors, (10975), 10681 states have call predecessors, (10975), 10790 states have call successors, (10975) [2022-11-23 16:06:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33165 states to 33165 states and 45714 transitions. [2022-11-23 16:06:58,537 INFO L78 Accepts]: Start accepts. Automaton has 33165 states and 45714 transitions. Word has length 353 [2022-11-23 16:06:58,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:06:58,537 INFO L495 AbstractCegarLoop]: Abstraction has 33165 states and 45714 transitions. [2022-11-23 16:06:58,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 1 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-23 16:06:58,538 INFO L276 IsEmpty]: Start isEmpty. Operand 33165 states and 45714 transitions. [2022-11-23 16:06:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-23 16:06:58,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:06:58,543 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:06:58,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 16:06:58,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac0b2b9-8013-4bdc-8a59-7e6ac1a676e2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:06:58,744 INFO L420 AbstractCegarLoop]: === Iteration 41 === 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 26 more)] === [2022-11-23 16:06:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:06:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1508905454, now seen corresponding path program 1 times [2022-11-23 16:06:58,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:06:58,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953906898] [2022-11-23 16:06:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:06:58,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:06:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-11-23 16:07:00,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:00,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953906898] [2022-11-23 16:07:00,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953906898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:00,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:00,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 16:07:00,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762818604] [2022-11-23 16:07:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:00,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 16:07:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:00,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 16:07:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 16:07:00,235 INFO L87 Difference]: Start difference. First operand 33165 states and 45714 transitions. Second operand has 8 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 3 states have call successors, (64), 1 states have call predecessors, (64), 3 states have return successors, (64), 4 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-23 16:07:04,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:09,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:14,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:18,903 INFO L93 Difference]: Finished difference Result 66546 states and 92141 transitions. [2022-11-23 16:07:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 16:07:18,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 3 states have call successors, (64), 1 states have call predecessors, (64), 3 states have return successors, (64), 4 states have call predecessors, (64), 3 states have call successors, (64) Word has length 357 [2022-11-23 16:07:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:19,012 INFO L225 Difference]: With dead ends: 66546 [2022-11-23 16:07:19,012 INFO L226 Difference]: Without dead ends: 33397 [2022-11-23 16:07:19,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 16:07:19,224 INFO L413 NwaCegarLoop]: 2669 mSDtfsCounter, 14 mSDsluCounter, 15946 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 18615 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:19,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 18615 Invalid, 2870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2859 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2022-11-23 16:07:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33397 states. [2022-11-23 16:07:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33397 to 33252. [2022-11-23 16:07:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33252 states, 19409 states have (on average 1.2367973620485342) internal successors, (24005), 19940 states have internal predecessors, (24005), 10821 states have call successors, (10821), 2965 states have call predecessors, (10821), 2994 states have return successors, (11004), 10710 states have call predecessors, (11004), 10819 states have call successors, (11004) [2022-11-23 16:07:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33252 states to 33252 states and 45830 transitions. [2022-11-23 16:07:21,380 INFO L78 Accepts]: Start accepts. Automaton has 33252 states and 45830 transitions. Word has length 357 [2022-11-23 16:07:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:07:21,380 INFO L495 AbstractCegarLoop]: Abstraction has 33252 states and 45830 transitions. [2022-11-23 16:07:21,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 3 states have call successors, (64), 1 states have call predecessors, (64), 3 states have return successors, (64), 4 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-23 16:07:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 33252 states and 45830 transitions. [2022-11-23 16:07:21,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-23 16:07:21,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:07:21,386 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:07:21,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-23 16:07:21,387 INFO L420 AbstractCegarLoop]: === Iteration 42 === 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 26 more)] === [2022-11-23 16:07:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:07:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash 644899449, now seen corresponding path program 1 times [2022-11-23 16:07:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:07:21,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816841547] [2022-11-23 16:07:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:07:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:07:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:07:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-23 16:07:23,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:07:23,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816841547] [2022-11-23 16:07:23,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816841547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:07:23,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:07:23,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 16:07:23,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864502566] [2022-11-23 16:07:23,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:07:23,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 16:07:23,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:07:23,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 16:07:23,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 16:07:23,127 INFO L87 Difference]: Start difference. First operand 33252 states and 45830 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 16:07:27,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:29,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:31,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:35,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:38,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:40,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:43,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:45,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:47,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:49,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:50,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:56,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:07:58,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:07:58,293 INFO L93 Difference]: Finished difference Result 38741 states and 54664 transitions. [2022-11-23 16:07:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 16:07:58,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 359 [2022-11-23 16:07:58,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:07:58,402 INFO L225 Difference]: With dead ends: 38741 [2022-11-23 16:07:58,402 INFO L226 Difference]: Without dead ends: 38739 [2022-11-23 16:07:58,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-23 16:07:58,416 INFO L413 NwaCegarLoop]: 3343 mSDtfsCounter, 589 mSDsluCounter, 12243 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 691 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 15586 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-11-23 16:07:58,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 15586 Invalid, 2662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [691 Valid, 1962 Invalid, 9 Unknown, 0 Unchecked, 31.8s Time] [2022-11-23 16:07:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38739 states. [2022-11-23 16:08:00,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38739 to 33288. [2022-11-23 16:08:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33288 states, 19445 states have (on average 1.2369760863975314) internal successors, (24053), 19976 states have internal predecessors, (24053), 10821 states have call successors, (10821), 2965 states have call predecessors, (10821), 2994 states have return successors, (11004), 10710 states have call predecessors, (11004), 10819 states have call successors, (11004) [2022-11-23 16:08:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33288 states to 33288 states and 45878 transitions. [2022-11-23 16:08:00,728 INFO L78 Accepts]: Start accepts. Automaton has 33288 states and 45878 transitions. Word has length 359 [2022-11-23 16:08:00,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:00,728 INFO L495 AbstractCegarLoop]: Abstraction has 33288 states and 45878 transitions. [2022-11-23 16:08:00,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 2 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 16:08:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 33288 states and 45878 transitions. [2022-11-23 16:08:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-23 16:08:00,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:00,734 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:08:00,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-23 16:08:00,735 INFO L420 AbstractCegarLoop]: === Iteration 43 === 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 26 more)] === [2022-11-23 16:08:00,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1541076147, now seen corresponding path program 1 times [2022-11-23 16:08:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:00,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055739748] [2022-11-23 16:08:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-11-23 16:08:03,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055739748] [2022-11-23 16:08:03,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055739748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:03,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:03,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:08:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217466422] [2022-11-23 16:08:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:03,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:08:03,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:08:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:08:03,146 INFO L87 Difference]: Start difference. First operand 33288 states and 45878 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (65), 1 states have call predecessors, (65), 2 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-23 16:08:05,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:07,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:09,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 16:08:13,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []