./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--usb--kaweth.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V --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 f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:13:07,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:13:07,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:13:07,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:13:07,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:13:07,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:13:07,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:13:07,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:13:07,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:13:07,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:13:07,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:13:07,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:13:07,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:13:07,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:13:07,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:13:07,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:13:07,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:13:07,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:13:07,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:13:07,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:13:07,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:13:07,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:13:07,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:13:07,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:13:07,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:13:07,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:13:07,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:13:07,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:13:07,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:13:07,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:13:07,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:13:07,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:13:07,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:13:07,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:13:07,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:13:07,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:13:07,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:13:07,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:13:07,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:13:07,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:13:07,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:13:07,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:13:07,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:13:07,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:13:07,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:13:07,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:13:07,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:13:07,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:13:07,409 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:13:07,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:13:07,410 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:13:07,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:13:07,410 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:13:07,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:13:07,411 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:13:07,411 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:13:07,411 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:13:07,411 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:13:07,411 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:13:07,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:13:07,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:13:07,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:13:07,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:13:07,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:13:07,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:13:07,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:13:07,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:13:07,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:13:07,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:13:07,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:13:07,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:13:07,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:13:07,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:13:07,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:13:07,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:13:07,416 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2021-11-23 02:13:07,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:13:07,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:13:07,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:13:07,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:13:07,702 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:13:07,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-23 02:13:07,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/data/3f4193849/5283d6b67ae949698a73ffae882abcb8/FLAG6df370b83 [2021-11-23 02:13:08,639 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:13:08,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-23 02:13:08,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/data/3f4193849/5283d6b67ae949698a73ffae882abcb8/FLAG6df370b83 [2021-11-23 02:13:09,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/data/3f4193849/5283d6b67ae949698a73ffae882abcb8 [2021-11-23 02:13:09,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:13:09,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:13:09,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:13:09,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:13:09,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:13:09,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:09" (1/1) ... [2021-11-23 02:13:09,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65265fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:09, skipping insertion in model container [2021-11-23 02:13:09,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:09" (1/1) ... [2021-11-23 02:13:09,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:13:09,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:13:13,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-23 02:13:13,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-23 02:13:13,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-23 02:13:13,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-23 02:13:13,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-23 02:13:13,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-23 02:13:13,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-23 02:13:13,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-23 02:13:13,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-23 02:13:13,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-23 02:13:13,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-23 02:13:13,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-23 02:13:13,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-23 02:13:13,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-23 02:13:13,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-23 02:13:13,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-23 02:13:13,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-23 02:13:13,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-23 02:13:13,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-23 02:13:13,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-23 02:13:13,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-23 02:13:13,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-23 02:13:13,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-23 02:13:13,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-23 02:13:13,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-23 02:13:13,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-23 02:13:13,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-23 02:13:13,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-23 02:13:13,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-23 02:13:13,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-23 02:13:13,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-23 02:13:13,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-23 02:13:13,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-23 02:13:13,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-23 02:13:13,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-23 02:13:13,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-23 02:13:13,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-23 02:13:13,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-23 02:13:13,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-23 02:13:13,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-23 02:13:13,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-23 02:13:13,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-23 02:13:13,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-23 02:13:13,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-23 02:13:13,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-23 02:13:13,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-23 02:13:13,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-23 02:13:13,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-23 02:13:13,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-23 02:13:13,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-23 02:13:13,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-23 02:13:13,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-23 02:13:13,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-23 02:13:13,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-23 02:13:13,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-23 02:13:13,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-23 02:13:13,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-23 02:13:13,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-23 02:13:13,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-23 02:13:13,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-23 02:13:13,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-23 02:13:13,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-23 02:13:13,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-23 02:13:13,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-23 02:13:13,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-23 02:13:13,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-23 02:13:13,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-23 02:13:13,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-23 02:13:13,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-23 02:13:13,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-23 02:13:13,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-23 02:13:13,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-23 02:13:13,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-23 02:13:13,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-23 02:13:13,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-23 02:13:13,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-23 02:13:13,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-23 02:13:13,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-23 02:13:13,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-23 02:13:13,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-23 02:13:13,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-23 02:13:13,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-23 02:13:13,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-23 02:13:13,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-23 02:13:13,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-23 02:13:13,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-23 02:13:13,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-23 02:13:13,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-23 02:13:13,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:13:13,163 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:13:13,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-23 02:13:13,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-23 02:13:13,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-23 02:13:13,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-23 02:13:13,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-23 02:13:13,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-23 02:13:13,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-23 02:13:13,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-23 02:13:13,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-23 02:13:13,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-23 02:13:13,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-23 02:13:13,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-23 02:13:13,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-23 02:13:13,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-23 02:13:13,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-23 02:13:13,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-23 02:13:13,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-23 02:13:13,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-23 02:13:13,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-23 02:13:13,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-23 02:13:13,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-23 02:13:13,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-23 02:13:13,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-23 02:13:13,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-23 02:13:13,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-23 02:13:13,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-23 02:13:13,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-23 02:13:13,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-23 02:13:13,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-23 02:13:13,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-23 02:13:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-23 02:13:13,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-23 02:13:13,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-23 02:13:13,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-23 02:13:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-23 02:13:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-23 02:13:13,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-23 02:13:13,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-23 02:13:13,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-23 02:13:13,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-23 02:13:13,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-23 02:13:13,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-23 02:13:13,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-23 02:13:13,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-23 02:13:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-23 02:13:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-23 02:13:13,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-23 02:13:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-23 02:13:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-23 02:13:13,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-23 02:13:13,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-23 02:13:13,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-23 02:13:13,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-23 02:13:13,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-23 02:13:13,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-23 02:13:13,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-23 02:13:13,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-23 02:13:13,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-23 02:13:13,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-23 02:13:13,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-23 02:13:13,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-23 02:13:13,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-23 02:13:13,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-23 02:13:13,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-23 02:13:13,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-23 02:13:13,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-23 02:13:13,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-23 02:13:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-23 02:13:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-23 02:13:13,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-23 02:13:13,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-23 02:13:13,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-23 02:13:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-23 02:13:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-23 02:13:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-23 02:13:13,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-23 02:13:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-23 02:13:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-23 02:13:13,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-23 02:13:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-23 02:13:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-23 02:13:13,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-23 02:13:13,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-23 02:13:13,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-23 02:13:13,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-23 02:13:13,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-23 02:13:13,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-23 02:13:13,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-23 02:13:13,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:13:13,912 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:13:13,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13 WrapperNode [2021-11-23 02:13:13,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:13:13,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:13:13,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:13:13,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:13:13,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,248 INFO L137 Inliner]: procedures = 616, calls = 2803, calls flagged for inlining = 287, calls inlined = 187, statements flattened = 4770 [2021-11-23 02:13:14,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:13:14,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:13:14,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:13:14,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:13:14,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:13:14,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:13:14,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:13:14,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:13:14,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (1/1) ... [2021-11-23 02:13:14,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:13:14,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:13:14,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:13:14,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:13:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:13:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-23 02:13:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:13:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:13:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:13:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:13:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-23 02:13:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-23 02:13:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:13:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-23 02:13:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-23 02:13:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-23 02:13:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:13:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:13:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2021-11-23 02:13:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2021-11-23 02:13:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:13:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-23 02:13:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:13:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-23 02:13:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:13:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2021-11-23 02:13:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2021-11-23 02:13:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:13:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:13:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:13:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:13:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:13:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:13:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:13:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-23 02:13:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:13:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:13:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-23 02:13:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:13:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:13:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:13:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2021-11-23 02:13:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2021-11-23 02:13:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:13:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-23 02:13:14,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-23 02:13:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:13:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:13:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:13:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-23 02:13:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-23 02:13:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-23 02:13:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:13:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:13:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-23 02:13:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:13:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:13:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:13:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:13:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:13:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-23 02:13:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-23 02:13:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-23 02:13:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:13:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:13:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2021-11-23 02:13:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2021-11-23 02:13:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:13:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-23 02:13:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-23 02:13:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2021-11-23 02:13:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:13:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:13:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:13:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:13:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:13:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:13:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:13:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-23 02:13:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-23 02:13:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:13:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-23 02:13:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:13:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:13:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-23 02:13:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-23 02:13:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 02:13:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 02:13:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2021-11-23 02:13:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2021-11-23 02:13:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:13:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:13:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-23 02:13:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:13:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:13:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-23 02:13:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-23 02:13:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-23 02:13:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-23 02:13:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2021-11-23 02:13:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2021-11-23 02:13:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-23 02:13:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-23 02:13:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:13:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:13:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:13:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-23 02:13:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:13:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-23 02:13:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:13:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:13:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:13:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-23 02:13:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:13:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-23 02:13:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-23 02:13:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:13:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:13:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-23 02:13:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:13:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:13:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-23 02:13:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-23 02:13:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:13:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:13:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-23 02:13:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-23 02:13:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 02:13:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 02:13:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-23 02:13:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-23 02:13:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-23 02:13:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-23 02:13:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:13:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-23 02:13:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:13:14,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-23 02:13:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:13:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:13:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2021-11-23 02:13:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2021-11-23 02:13:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:13:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-23 02:13:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-23 02:13:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-23 02:13:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:13:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-23 02:13:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:13:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:13:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-23 02:13:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:13:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:13:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:13:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-23 02:13:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2021-11-23 02:13:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2021-11-23 02:13:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2021-11-23 02:13:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2021-11-23 02:13:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:13:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:13:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:13:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-23 02:13:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 02:13:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2021-11-23 02:13:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2021-11-23 02:13:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2021-11-23 02:13:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2021-11-23 02:13:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:13:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 02:13:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 02:13:15,401 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:13:15,405 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:13:15,590 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:13:22,875 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:13:23,407 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:13:23,407 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:13:23,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:23 BoogieIcfgContainer [2021-11-23 02:13:23,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:13:23,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:13:23,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:13:23,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:13:23,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:09" (1/3) ... [2021-11-23 02:13:23,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ac9e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:23, skipping insertion in model container [2021-11-23 02:13:23,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:13" (2/3) ... [2021-11-23 02:13:23,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ac9e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:23, skipping insertion in model container [2021-11-23 02:13:23,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:23" (3/3) ... [2021-11-23 02:13:23,422 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-23 02:13:23,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:13:23,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-23 02:13:23,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:13:23,517 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:13:23,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-23 02:13:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) [2021-11-23 02:13:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 02:13:23,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:23,587 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:23,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:23,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1899553895, now seen corresponding path program 1 times [2021-11-23 02:13:23,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:23,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459968775] [2021-11-23 02:13:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:23,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:24,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:24,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459968775] [2021-11-23 02:13:24,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459968775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:24,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:24,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:24,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781092943] [2021-11-23 02:13:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:24,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:24,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:24,567 INFO L87 Difference]: Start difference. First operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-23 02:13:27,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:28,424 INFO L93 Difference]: Finished difference Result 1762 states and 2488 transitions. [2021-11-23 02:13:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 51 [2021-11-23 02:13:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:28,447 INFO L225 Difference]: With dead ends: 1762 [2021-11-23 02:13:28,447 INFO L226 Difference]: Without dead ends: 902 [2021-11-23 02:13:28,460 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:28,463 INFO L933 BasicCegarLoop]: 1038 mSDtfsCounter, 1188 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:28,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 2076 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-23 02:13:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-11-23 02:13:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2021-11-23 02:13:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 498 states have (on average 1.2108433734939759) internal successors, (603), 534 states have internal predecessors, (603), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2021-11-23 02:13:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1195 transitions. [2021-11-23 02:13:28,600 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1195 transitions. Word has length 51 [2021-11-23 02:13:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:28,602 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1195 transitions. [2021-11-23 02:13:28,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-23 02:13:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1195 transitions. [2021-11-23 02:13:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 02:13:28,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:28,606 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:28,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:13:28,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2086936408, now seen corresponding path program 1 times [2021-11-23 02:13:28,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:28,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683396934] [2021-11-23 02:13:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:28,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:29,075 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:29,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683396934] [2021-11-23 02:13:29,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683396934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:29,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:29,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:29,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904943137] [2021-11-23 02:13:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:29,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:29,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:29,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:29,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:29,079 INFO L87 Difference]: Start difference. First operand 902 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-23 02:13:31,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:33,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:33,610 INFO L93 Difference]: Finished difference Result 902 states and 1195 transitions. [2021-11-23 02:13:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:33,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 56 [2021-11-23 02:13:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:33,620 INFO L225 Difference]: With dead ends: 902 [2021-11-23 02:13:33,620 INFO L226 Difference]: Without dead ends: 900 [2021-11-23 02:13:33,620 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:33,622 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 1170 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:33,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 2044 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-23 02:13:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2021-11-23 02:13:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 900. [2021-11-23 02:13:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 497 states have (on average 1.2092555331991952) internal successors, (601), 532 states have internal predecessors, (601), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2021-11-23 02:13:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1193 transitions. [2021-11-23 02:13:33,693 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1193 transitions. Word has length 56 [2021-11-23 02:13:33,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:33,694 INFO L470 AbstractCegarLoop]: Abstraction has 900 states and 1193 transitions. [2021-11-23 02:13:33,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-11-23 02:13:33,695 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1193 transitions. [2021-11-23 02:13:33,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 02:13:33,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:33,698 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:33,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:13:33,698 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:33,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:33,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1573572753, now seen corresponding path program 1 times [2021-11-23 02:13:33,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:33,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200549169] [2021-11-23 02:13:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:33,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:33,964 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:33,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200549169] [2021-11-23 02:13:33,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200549169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:33,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:33,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:33,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671670252] [2021-11-23 02:13:33,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:33,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:33,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:33,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:33,966 INFO L87 Difference]: Start difference. First operand 900 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-23 02:13:36,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:37,635 INFO L93 Difference]: Finished difference Result 900 states and 1193 transitions. [2021-11-23 02:13:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:37,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 61 [2021-11-23 02:13:37,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:37,643 INFO L225 Difference]: With dead ends: 900 [2021-11-23 02:13:37,643 INFO L226 Difference]: Without dead ends: 898 [2021-11-23 02:13:37,644 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:37,645 INFO L933 BasicCegarLoop]: 1020 mSDtfsCounter, 1167 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:37,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 2040 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-23 02:13:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-23 02:13:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2021-11-23 02:13:37,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 496 states have (on average 1.2076612903225807) internal successors, (599), 530 states have internal predecessors, (599), 297 states have call successors, (297), 80 states have call predecessors, (297), 79 states have return successors, (295), 294 states have call predecessors, (295), 295 states have call successors, (295) [2021-11-23 02:13:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1191 transitions. [2021-11-23 02:13:37,706 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1191 transitions. Word has length 61 [2021-11-23 02:13:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:37,706 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1191 transitions. [2021-11-23 02:13:37,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-23 02:13:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1191 transitions. [2021-11-23 02:13:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:13:37,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:37,709 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:37,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:13:37,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1946985049, now seen corresponding path program 1 times [2021-11-23 02:13:37,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539395066] [2021-11-23 02:13:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:37,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:38,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:38,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539395066] [2021-11-23 02:13:38,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539395066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:38,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:38,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:38,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022634068] [2021-11-23 02:13:38,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:38,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:38,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:38,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:38,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:38,035 INFO L87 Difference]: Start difference. First operand 898 states and 1191 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-23 02:13:41,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:42,161 INFO L93 Difference]: Finished difference Result 1038 states and 1354 transitions. [2021-11-23 02:13:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 66 [2021-11-23 02:13:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:42,171 INFO L225 Difference]: With dead ends: 1038 [2021-11-23 02:13:42,171 INFO L226 Difference]: Without dead ends: 1036 [2021-11-23 02:13:42,172 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:42,173 INFO L933 BasicCegarLoop]: 1067 mSDtfsCounter, 1150 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:42,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 2276 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 02:13:42,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-23 02:13:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1027. [2021-11-23 02:13:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 573 states have (on average 1.205933682373473) internal successors, (691), 607 states have internal predecessors, (691), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:13:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1345 transitions. [2021-11-23 02:13:42,243 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1345 transitions. Word has length 66 [2021-11-23 02:13:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:42,244 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1345 transitions. [2021-11-23 02:13:42,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-23 02:13:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1345 transitions. [2021-11-23 02:13:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 02:13:42,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:42,246 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:42,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:13:42,247 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:42,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:42,247 INFO L85 PathProgramCache]: Analyzing trace with hash 993276308, now seen corresponding path program 1 times [2021-11-23 02:13:42,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:42,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30059504] [2021-11-23 02:13:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:42,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:42,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:42,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30059504] [2021-11-23 02:13:42,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30059504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:42,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:42,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:42,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326952902] [2021-11-23 02:13:42,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:42,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:42,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:42,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:42,538 INFO L87 Difference]: Start difference. First operand 1027 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-23 02:13:45,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:46,292 INFO L93 Difference]: Finished difference Result 1036 states and 1352 transitions. [2021-11-23 02:13:46,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:46,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 71 [2021-11-23 02:13:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:46,301 INFO L225 Difference]: With dead ends: 1036 [2021-11-23 02:13:46,301 INFO L226 Difference]: Without dead ends: 1034 [2021-11-23 02:13:46,302 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:46,304 INFO L933 BasicCegarLoop]: 1065 mSDtfsCounter, 1147 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:46,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 2272 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-23 02:13:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-11-23 02:13:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1025. [2021-11-23 02:13:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 572 states have (on average 1.2045454545454546) internal successors, (689), 605 states have internal predecessors, (689), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:13:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1343 transitions. [2021-11-23 02:13:46,382 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1343 transitions. Word has length 71 [2021-11-23 02:13:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:46,383 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1343 transitions. [2021-11-23 02:13:46,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-23 02:13:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1343 transitions. [2021-11-23 02:13:46,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 02:13:46,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:46,386 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:46,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:13:46,387 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash 950289720, now seen corresponding path program 1 times [2021-11-23 02:13:46,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:46,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768495102] [2021-11-23 02:13:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:46,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:46,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:46,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768495102] [2021-11-23 02:13:46,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768495102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:46,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:46,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:46,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949280606] [2021-11-23 02:13:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:46,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:46,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:46,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:46,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:46,644 INFO L87 Difference]: Start difference. First operand 1025 states and 1343 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-23 02:13:50,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:50,733 INFO L93 Difference]: Finished difference Result 1034 states and 1350 transitions. [2021-11-23 02:13:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 76 [2021-11-23 02:13:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:50,745 INFO L225 Difference]: With dead ends: 1034 [2021-11-23 02:13:50,745 INFO L226 Difference]: Without dead ends: 1032 [2021-11-23 02:13:50,746 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:50,749 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 1144 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:50,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 2268 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 02:13:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2021-11-23 02:13:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1023. [2021-11-23 02:13:50,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 571 states have (on average 1.203152364273205) internal successors, (687), 603 states have internal predecessors, (687), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:13:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1341 transitions. [2021-11-23 02:13:50,822 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1341 transitions. Word has length 76 [2021-11-23 02:13:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:50,822 INFO L470 AbstractCegarLoop]: Abstraction has 1023 states and 1341 transitions. [2021-11-23 02:13:50,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-23 02:13:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1341 transitions. [2021-11-23 02:13:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:13:50,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:50,826 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:50,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:13:50,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:50,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1809153545, now seen corresponding path program 1 times [2021-11-23 02:13:50,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:50,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649627994] [2021-11-23 02:13:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:50,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:51,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:51,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649627994] [2021-11-23 02:13:51,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649627994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:51,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:51,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:51,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246849778] [2021-11-23 02:13:51,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:51,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:51,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:51,076 INFO L87 Difference]: Start difference. First operand 1023 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-11-23 02:13:53,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:54,943 INFO L93 Difference]: Finished difference Result 1023 states and 1341 transitions. [2021-11-23 02:13:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:54,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 81 [2021-11-23 02:13:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:54,952 INFO L225 Difference]: With dead ends: 1023 [2021-11-23 02:13:54,952 INFO L226 Difference]: Without dead ends: 1021 [2021-11-23 02:13:54,958 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:13:54,959 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 1155 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:54,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2024 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:13:54,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2021-11-23 02:13:55,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2021-11-23 02:13:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 570 states have (on average 1.2017543859649122) internal successors, (685), 601 states have internal predecessors, (685), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:13:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1339 transitions. [2021-11-23 02:13:55,039 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1339 transitions. Word has length 81 [2021-11-23 02:13:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:55,040 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 1339 transitions. [2021-11-23 02:13:55,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-11-23 02:13:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1339 transitions. [2021-11-23 02:13:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 02:13:55,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:55,048 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:55,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:13:55,049 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:13:55,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:55,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1665949854, now seen corresponding path program 1 times [2021-11-23 02:13:55,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:55,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249971396] [2021-11-23 02:13:55,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:55,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:13:55,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249971396] [2021-11-23 02:13:55,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249971396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:55,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:55,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:55,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748494152] [2021-11-23 02:13:55,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:55,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:55,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:55,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:55,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:55,271 INFO L87 Difference]: Start difference. First operand 1021 states and 1339 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-11-23 02:13:58,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:13:59,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:00,539 INFO L93 Difference]: Finished difference Result 1021 states and 1339 transitions. [2021-11-23 02:14:00,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 86 [2021-11-23 02:14:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:00,549 INFO L225 Difference]: With dead ends: 1021 [2021-11-23 02:14:00,549 INFO L226 Difference]: Without dead ends: 1019 [2021-11-23 02:14:00,551 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:00,552 INFO L933 BasicCegarLoop]: 1010 mSDtfsCounter, 1156 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:00,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 2016 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-23 02:14:00,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-11-23 02:14:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2021-11-23 02:14:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 569 states have (on average 1.2003514938488578) internal successors, (683), 599 states have internal predecessors, (683), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1337 transitions. [2021-11-23 02:14:00,627 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1337 transitions. Word has length 86 [2021-11-23 02:14:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:00,629 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1337 transitions. [2021-11-23 02:14:00,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-11-23 02:14:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1337 transitions. [2021-11-23 02:14:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 02:14:00,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:00,632 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:00,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:14:00,632 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:00,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:00,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1045124389, now seen corresponding path program 1 times [2021-11-23 02:14:00,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:00,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180182417] [2021-11-23 02:14:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:00,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:00,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:00,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180182417] [2021-11-23 02:14:00,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180182417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:00,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:00,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:00,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060509044] [2021-11-23 02:14:00,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:00,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:00,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:00,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:00,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:00,865 INFO L87 Difference]: Start difference. First operand 1019 states and 1337 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-11-23 02:14:03,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:04,755 INFO L93 Difference]: Finished difference Result 1028 states and 1344 transitions. [2021-11-23 02:14:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:04,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 88 [2021-11-23 02:14:04,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:04,764 INFO L225 Difference]: With dead ends: 1028 [2021-11-23 02:14:04,764 INFO L226 Difference]: Without dead ends: 1026 [2021-11-23 02:14:04,765 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:04,766 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 1134 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:04,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2256 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:14:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-11-23 02:14:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1017. [2021-11-23 02:14:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 568 states have (on average 1.198943661971831) internal successors, (681), 597 states have internal predecessors, (681), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1335 transitions. [2021-11-23 02:14:04,840 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1335 transitions. Word has length 88 [2021-11-23 02:14:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:04,841 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1335 transitions. [2021-11-23 02:14:04,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-11-23 02:14:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1335 transitions. [2021-11-23 02:14:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 02:14:04,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:04,843 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:04,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:14:04,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1170818888, now seen corresponding path program 1 times [2021-11-23 02:14:04,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:04,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455666736] [2021-11-23 02:14:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:04,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:05,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:05,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455666736] [2021-11-23 02:14:05,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455666736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:05,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:05,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:05,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223152863] [2021-11-23 02:14:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:05,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:05,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:05,072 INFO L87 Difference]: Start difference. First operand 1017 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-11-23 02:14:08,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:08,984 INFO L93 Difference]: Finished difference Result 1026 states and 1342 transitions. [2021-11-23 02:14:08,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:08,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 93 [2021-11-23 02:14:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:08,992 INFO L225 Difference]: With dead ends: 1026 [2021-11-23 02:14:08,992 INFO L226 Difference]: Without dead ends: 1024 [2021-11-23 02:14:08,993 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:08,994 INFO L933 BasicCegarLoop]: 1055 mSDtfsCounter, 1133 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:08,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 2252 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:14:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2021-11-23 02:14:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1015. [2021-11-23 02:14:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 567 states have (on average 1.1975308641975309) internal successors, (679), 595 states have internal predecessors, (679), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1333 transitions. [2021-11-23 02:14:09,074 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1333 transitions. Word has length 93 [2021-11-23 02:14:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:09,074 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 1333 transitions. [2021-11-23 02:14:09,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-11-23 02:14:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1333 transitions. [2021-11-23 02:14:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 02:14:09,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:09,077 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:09,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:14:09,077 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2080074411, now seen corresponding path program 1 times [2021-11-23 02:14:09,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357457761] [2021-11-23 02:14:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:09,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:09,285 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:09,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357457761] [2021-11-23 02:14:09,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357457761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:09,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:09,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:09,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613814275] [2021-11-23 02:14:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:09,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:09,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:09,287 INFO L87 Difference]: Start difference. First operand 1015 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-11-23 02:14:11,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:13,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:14,459 INFO L93 Difference]: Finished difference Result 1015 states and 1333 transitions. [2021-11-23 02:14:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:14,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 98 [2021-11-23 02:14:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:14,467 INFO L225 Difference]: With dead ends: 1015 [2021-11-23 02:14:14,468 INFO L226 Difference]: Without dead ends: 1013 [2021-11-23 02:14:14,469 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:14,469 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 1144 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:14,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 2008 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-23 02:14:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-11-23 02:14:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1013. [2021-11-23 02:14:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 566 states have (on average 1.196113074204947) internal successors, (677), 593 states have internal predecessors, (677), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1331 transitions. [2021-11-23 02:14:14,556 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1331 transitions. Word has length 98 [2021-11-23 02:14:14,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:14,557 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1331 transitions. [2021-11-23 02:14:14,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-11-23 02:14:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1331 transitions. [2021-11-23 02:14:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 02:14:14,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:14,559 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:14,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:14:14,560 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash 499093469, now seen corresponding path program 1 times [2021-11-23 02:14:14,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:14,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451138619] [2021-11-23 02:14:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:14,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:14,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:14,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451138619] [2021-11-23 02:14:14,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451138619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:14,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:14,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:14,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762295469] [2021-11-23 02:14:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:14,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:14,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:14,783 INFO L87 Difference]: Start difference. First operand 1013 states and 1331 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-11-23 02:14:18,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:19,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:19,908 INFO L93 Difference]: Finished difference Result 1013 states and 1331 transitions. [2021-11-23 02:14:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 103 [2021-11-23 02:14:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:19,915 INFO L225 Difference]: With dead ends: 1013 [2021-11-23 02:14:19,915 INFO L226 Difference]: Without dead ends: 1011 [2021-11-23 02:14:19,915 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:19,916 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1141 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:19,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2004 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-23 02:14:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2021-11-23 02:14:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2021-11-23 02:14:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 565 states have (on average 1.1946902654867257) internal successors, (675), 591 states have internal predecessors, (675), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:20,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1329 transitions. [2021-11-23 02:14:20,025 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1329 transitions. Word has length 103 [2021-11-23 02:14:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:20,026 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1329 transitions. [2021-11-23 02:14:20,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-11-23 02:14:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1329 transitions. [2021-11-23 02:14:20,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 02:14:20,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:20,028 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:20,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:14:20,029 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:20,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:20,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1771861774, now seen corresponding path program 1 times [2021-11-23 02:14:20,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:20,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107148072] [2021-11-23 02:14:20,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:20,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:20,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107148072] [2021-11-23 02:14:20,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107148072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:20,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:20,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:20,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875264905] [2021-11-23 02:14:20,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:20,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:20,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:20,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:20,235 INFO L87 Difference]: Start difference. First operand 1011 states and 1329 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-23 02:14:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:23,147 INFO L93 Difference]: Finished difference Result 1011 states and 1329 transitions. [2021-11-23 02:14:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:23,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 108 [2021-11-23 02:14:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:23,156 INFO L225 Difference]: With dead ends: 1011 [2021-11-23 02:14:23,157 INFO L226 Difference]: Without dead ends: 1009 [2021-11-23 02:14:23,158 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:23,159 INFO L933 BasicCegarLoop]: 1000 mSDtfsCounter, 1138 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:23,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 2000 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 02:14:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2021-11-23 02:14:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2021-11-23 02:14:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 564 states have (on average 1.1932624113475176) internal successors, (673), 589 states have internal predecessors, (673), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2021-11-23 02:14:23,253 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 108 [2021-11-23 02:14:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:23,254 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2021-11-23 02:14:23,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-11-23 02:14:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2021-11-23 02:14:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 02:14:23,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:23,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:23,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:14:23,257 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:23,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash -201463559, now seen corresponding path program 1 times [2021-11-23 02:14:23,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52250879] [2021-11-23 02:14:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:23,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:23,565 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:23,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52250879] [2021-11-23 02:14:23,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52250879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:23,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:23,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:23,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277410504] [2021-11-23 02:14:23,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:23,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:23,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:23,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:23,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:23,568 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-23 02:14:26,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:27,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:27,360 INFO L93 Difference]: Finished difference Result 1018 states and 1334 transitions. [2021-11-23 02:14:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:27,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 113 [2021-11-23 02:14:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:27,368 INFO L225 Difference]: With dead ends: 1018 [2021-11-23 02:14:27,368 INFO L226 Difference]: Without dead ends: 1016 [2021-11-23 02:14:27,369 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:27,370 INFO L933 BasicCegarLoop]: 1047 mSDtfsCounter, 1121 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:27,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 2236 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-23 02:14:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2021-11-23 02:14:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1007. [2021-11-23 02:14:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 563 states have (on average 1.191829484902309) internal successors, (671), 587 states have internal predecessors, (671), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1325 transitions. [2021-11-23 02:14:27,471 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1325 transitions. Word has length 113 [2021-11-23 02:14:27,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:27,472 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1325 transitions. [2021-11-23 02:14:27,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2021-11-23 02:14:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1325 transitions. [2021-11-23 02:14:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 02:14:27,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:27,475 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:27,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:14:27,475 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:27,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1614493235, now seen corresponding path program 1 times [2021-11-23 02:14:27,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:27,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441069691] [2021-11-23 02:14:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:27,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:27,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441069691] [2021-11-23 02:14:27,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441069691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:27,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:27,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:27,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125638606] [2021-11-23 02:14:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:27,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:27,729 INFO L87 Difference]: Start difference. First operand 1007 states and 1325 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2021-11-23 02:14:30,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:31,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:31,971 INFO L93 Difference]: Finished difference Result 1007 states and 1325 transitions. [2021-11-23 02:14:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 118 [2021-11-23 02:14:31,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:31,979 INFO L225 Difference]: With dead ends: 1007 [2021-11-23 02:14:31,979 INFO L226 Difference]: Without dead ends: 1005 [2021-11-23 02:14:31,980 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:31,981 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 1132 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:31,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 1992 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 02:14:31,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2021-11-23 02:14:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2021-11-23 02:14:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 562 states have (on average 1.190391459074733) internal successors, (669), 585 states have internal predecessors, (669), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-23 02:14:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1323 transitions. [2021-11-23 02:14:32,083 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1323 transitions. Word has length 118 [2021-11-23 02:14:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:32,084 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 1323 transitions. [2021-11-23 02:14:32,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2021-11-23 02:14:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1323 transitions. [2021-11-23 02:14:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 02:14:32,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:32,087 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:32,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:14:32,087 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:32,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:32,088 INFO L85 PathProgramCache]: Analyzing trace with hash -165107209, now seen corresponding path program 1 times [2021-11-23 02:14:32,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:32,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962394285] [2021-11-23 02:14:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:32,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-23 02:14:32,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962394285] [2021-11-23 02:14:32,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962394285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:32,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:32,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:14:32,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348148173] [2021-11-23 02:14:32,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:32,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:14:32,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:32,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:14:32,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:14:32,460 INFO L87 Difference]: Start difference. First operand 1005 states and 1323 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:14:35,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:36,163 INFO L93 Difference]: Finished difference Result 1824 states and 2294 transitions. [2021-11-23 02:14:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:14:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2021-11-23 02:14:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:36,174 INFO L225 Difference]: With dead ends: 1824 [2021-11-23 02:14:36,175 INFO L226 Difference]: Without dead ends: 1232 [2021-11-23 02:14:36,178 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:36,178 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 946 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:36,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1425 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-23 02:14:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-23 02:14:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1213. [2021-11-23 02:14:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 684 states have (on average 1.1871345029239766) internal successors, (812), 707 states have internal predecessors, (812), 378 states have call successors, (378), 138 states have call predecessors, (378), 137 states have return successors, (377), 374 states have call predecessors, (377), 376 states have call successors, (377) [2021-11-23 02:14:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1567 transitions. [2021-11-23 02:14:36,313 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1567 transitions. Word has length 148 [2021-11-23 02:14:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:36,314 INFO L470 AbstractCegarLoop]: Abstraction has 1213 states and 1567 transitions. [2021-11-23 02:14:36,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:14:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1567 transitions. [2021-11-23 02:14:36,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 02:14:36,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:36,318 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:36,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:14:36,318 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1140682789, now seen corresponding path program 1 times [2021-11-23 02:14:36,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:36,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175761207] [2021-11-23 02:14:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:36,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:36,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:36,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175761207] [2021-11-23 02:14:36,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175761207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:36,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:36,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:36,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530955107] [2021-11-23 02:14:36,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:36,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:36,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:36,607 INFO L87 Difference]: Start difference. First operand 1213 states and 1567 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-23 02:14:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:40,119 INFO L93 Difference]: Finished difference Result 1213 states and 1567 transitions. [2021-11-23 02:14:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 123 [2021-11-23 02:14:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:40,130 INFO L225 Difference]: With dead ends: 1213 [2021-11-23 02:14:40,130 INFO L226 Difference]: Without dead ends: 1211 [2021-11-23 02:14:40,131 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:40,132 INFO L933 BasicCegarLoop]: 994 mSDtfsCounter, 1129 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:40,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1988 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-23 02:14:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2021-11-23 02:14:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2021-11-23 02:14:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 683 states have (on average 1.1859443631039532) internal successors, (810), 705 states have internal predecessors, (810), 378 states have call successors, (378), 138 states have call predecessors, (378), 137 states have return successors, (377), 374 states have call predecessors, (377), 376 states have call successors, (377) [2021-11-23 02:14:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1565 transitions. [2021-11-23 02:14:40,275 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1565 transitions. Word has length 123 [2021-11-23 02:14:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:40,275 INFO L470 AbstractCegarLoop]: Abstraction has 1211 states and 1565 transitions. [2021-11-23 02:14:40,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-11-23 02:14:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1565 transitions. [2021-11-23 02:14:40,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-23 02:14:40,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:40,280 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:40,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:14:40,280 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2009046417, now seen corresponding path program 1 times [2021-11-23 02:14:40,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991112289] [2021-11-23 02:14:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:40,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:40,602 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-23 02:14:40,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:40,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991112289] [2021-11-23 02:14:40,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991112289] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:14:40,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110178715] [2021-11-23 02:14:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:40,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:14:40,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:14:40,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:14:40,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:14:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:41,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 3956 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:14:41,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:14:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-11-23 02:14:42,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:14:42,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110178715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:42,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:14:42,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 02:14:42,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138638296] [2021-11-23 02:14:42,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:42,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:14:42,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:42,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:14:42,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:14:42,155 INFO L87 Difference]: Start difference. First operand 1211 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:14:43,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:44,530 INFO L93 Difference]: Finished difference Result 1815 states and 2286 transitions. [2021-11-23 02:14:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:14:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2021-11-23 02:14:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:44,542 INFO L225 Difference]: With dead ends: 1815 [2021-11-23 02:14:44,543 INFO L226 Difference]: Without dead ends: 1229 [2021-11-23 02:14:44,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:14:44,547 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1086 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:44,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 1052 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:14:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2021-11-23 02:14:44,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2021-11-23 02:14:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 690 states have (on average 1.181159420289855) internal successors, (815), 712 states have internal predecessors, (815), 382 states have call successors, (382), 144 states have call predecessors, (382), 143 states have return successors, (381), 377 states have call predecessors, (381), 380 states have call successors, (381) [2021-11-23 02:14:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1578 transitions. [2021-11-23 02:14:44,688 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1578 transitions. Word has length 153 [2021-11-23 02:14:44,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:44,689 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 1578 transitions. [2021-11-23 02:14:44,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:14:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1578 transitions. [2021-11-23 02:14:44,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 02:14:44,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:44,693 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:44,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:14:44,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-23 02:14:44,922 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash -448572785, now seen corresponding path program 1 times [2021-11-23 02:14:44,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:44,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627758731] [2021-11-23 02:14:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:44,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:45,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:45,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627758731] [2021-11-23 02:14:45,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627758731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:45,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:45,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:45,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792893602] [2021-11-23 02:14:45,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:45,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:45,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:45,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:45,206 INFO L87 Difference]: Start difference. First operand 1227 states and 1578 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2021-11-23 02:14:48,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:50,197 INFO L93 Difference]: Finished difference Result 1227 states and 1578 transitions. [2021-11-23 02:14:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 128 [2021-11-23 02:14:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:50,209 INFO L225 Difference]: With dead ends: 1227 [2021-11-23 02:14:50,209 INFO L226 Difference]: Without dead ends: 1225 [2021-11-23 02:14:50,210 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:50,212 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 1121 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:50,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 1974 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-23 02:14:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-11-23 02:14:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2021-11-23 02:14:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 689 states have (on average 1.1799709724238026) internal successors, (813), 710 states have internal predecessors, (813), 382 states have call successors, (382), 144 states have call predecessors, (382), 143 states have return successors, (381), 377 states have call predecessors, (381), 380 states have call successors, (381) [2021-11-23 02:14:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1576 transitions. [2021-11-23 02:14:50,361 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1576 transitions. Word has length 128 [2021-11-23 02:14:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 1576 transitions. [2021-11-23 02:14:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2021-11-23 02:14:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1576 transitions. [2021-11-23 02:14:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-23 02:14:50,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:50,365 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:50,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:14:50,367 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 703783891, now seen corresponding path program 1 times [2021-11-23 02:14:50,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:50,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254240779] [2021-11-23 02:14:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:50,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:50,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:50,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254240779] [2021-11-23 02:14:50,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254240779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:50,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:50,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:50,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522874664] [2021-11-23 02:14:50,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:50,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:50,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:50,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:50,645 INFO L87 Difference]: Start difference. First operand 1225 states and 1576 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-11-23 02:14:54,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:14:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:14:54,975 INFO L93 Difference]: Finished difference Result 1238 states and 1586 transitions. [2021-11-23 02:14:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:14:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 133 [2021-11-23 02:14:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:14:54,986 INFO L225 Difference]: With dead ends: 1238 [2021-11-23 02:14:54,986 INFO L226 Difference]: Without dead ends: 1236 [2021-11-23 02:14:54,987 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:14:54,988 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 1104 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:14:54,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2210 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-23 02:14:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2021-11-23 02:14:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1230. [2021-11-23 02:14:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 692 states have (on average 1.1777456647398843) internal successors, (815), 713 states have internal predecessors, (815), 383 states have call successors, (383), 145 states have call predecessors, (383), 145 states have return successors, (383), 378 states have call predecessors, (383), 381 states have call successors, (383) [2021-11-23 02:14:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1581 transitions. [2021-11-23 02:14:55,131 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1581 transitions. Word has length 133 [2021-11-23 02:14:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:14:55,131 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1581 transitions. [2021-11-23 02:14:55,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-11-23 02:14:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1581 transitions. [2021-11-23 02:14:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-23 02:14:55,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:14:55,134 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:14:55,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 02:14:55,135 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:14:55,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:14:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2041113775, now seen corresponding path program 1 times [2021-11-23 02:14:55,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:14:55,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023306026] [2021-11-23 02:14:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:14:55,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:14:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:14:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:14:55,409 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:14:55,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023306026] [2021-11-23 02:14:55,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023306026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:14:55,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:14:55,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:14:55,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100017793] [2021-11-23 02:14:55,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:14:55,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:14:55,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:14:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:14:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:14:55,414 INFO L87 Difference]: Start difference. First operand 1230 states and 1581 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2021-11-23 02:14:58,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:00,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:02,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:02,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:02,355 INFO L93 Difference]: Finished difference Result 1843 states and 2325 transitions. [2021-11-23 02:15:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:15:02,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 138 [2021-11-23 02:15:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:02,370 INFO L225 Difference]: With dead ends: 1843 [2021-11-23 02:15:02,370 INFO L226 Difference]: Without dead ends: 1841 [2021-11-23 02:15:02,372 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:15:02,373 INFO L933 BasicCegarLoop]: 1152 mSDtfsCounter, 899 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:02,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 3068 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-23 02:15:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2021-11-23 02:15:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1809. [2021-11-23 02:15:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1015 states have (on average 1.167487684729064) internal successors, (1185), 1041 states have internal predecessors, (1185), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-23 02:15:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2296 transitions. [2021-11-23 02:15:02,660 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2296 transitions. Word has length 138 [2021-11-23 02:15:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:02,661 INFO L470 AbstractCegarLoop]: Abstraction has 1809 states and 2296 transitions. [2021-11-23 02:15:02,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2021-11-23 02:15:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2296 transitions. [2021-11-23 02:15:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-23 02:15:02,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:02,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:02,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 02:15:02,665 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:15:02,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1797852913, now seen corresponding path program 1 times [2021-11-23 02:15:02,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143563618] [2021-11-23 02:15:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:02,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:15:02,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:02,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143563618] [2021-11-23 02:15:02,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143563618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:02,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:02,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:02,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726599401] [2021-11-23 02:15:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:02,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:02,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:02,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:02,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:02,928 INFO L87 Difference]: Start difference. First operand 1809 states and 2296 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-11-23 02:15:06,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:06,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:06,936 INFO L93 Difference]: Finished difference Result 1818 states and 2302 transitions. [2021-11-23 02:15:06,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:15:06,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 143 [2021-11-23 02:15:06,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:06,947 INFO L225 Difference]: With dead ends: 1818 [2021-11-23 02:15:06,948 INFO L226 Difference]: Without dead ends: 1816 [2021-11-23 02:15:06,948 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:15:06,949 INFO L933 BasicCegarLoop]: 1032 mSDtfsCounter, 1100 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:06,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2206 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:15:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2021-11-23 02:15:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1807. [2021-11-23 02:15:07,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1014 states have (on average 1.1666666666666667) internal successors, (1183), 1039 states have internal predecessors, (1183), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-23 02:15:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2294 transitions. [2021-11-23 02:15:07,168 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2294 transitions. Word has length 143 [2021-11-23 02:15:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:07,169 INFO L470 AbstractCegarLoop]: Abstraction has 1807 states and 2294 transitions. [2021-11-23 02:15:07,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-11-23 02:15:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2294 transitions. [2021-11-23 02:15:07,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 02:15:07,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:07,172 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:07,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 02:15:07,173 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:15:07,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:07,173 INFO L85 PathProgramCache]: Analyzing trace with hash 594163738, now seen corresponding path program 1 times [2021-11-23 02:15:07,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:07,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188453124] [2021-11-23 02:15:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:07,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-23 02:15:07,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:07,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188453124] [2021-11-23 02:15:07,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188453124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:07,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:07,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:07,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83833361] [2021-11-23 02:15:07,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:07,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:07,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:07,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:07,670 INFO L87 Difference]: Start difference. First operand 1807 states and 2294 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 02:15:11,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:13,066 INFO L93 Difference]: Finished difference Result 3727 states and 4810 transitions. [2021-11-23 02:15:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:15:13,067 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, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 177 [2021-11-23 02:15:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:13,092 INFO L225 Difference]: With dead ends: 3727 [2021-11-23 02:15:13,098 INFO L226 Difference]: Without dead ends: 1985 [2021-11-23 02:15:13,108 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:15:13,109 INFO L933 BasicCegarLoop]: 1116 mSDtfsCounter, 103 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 140 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:13,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 3180 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-23 02:15:13,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2021-11-23 02:15:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1809. [2021-11-23 02:15:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1016 states have (on average 1.1663385826771653) internal successors, (1185), 1041 states have internal predecessors, (1185), 554 states have call successors, (554), 231 states have call predecessors, (554), 230 states have return successors, (557), 545 states have call predecessors, (557), 552 states have call successors, (557) [2021-11-23 02:15:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2296 transitions. [2021-11-23 02:15:13,382 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2296 transitions. Word has length 177 [2021-11-23 02:15:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:13,383 INFO L470 AbstractCegarLoop]: Abstraction has 1809 states and 2296 transitions. [2021-11-23 02:15:13,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 02:15:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2296 transitions. [2021-11-23 02:15:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 02:15:13,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:13,386 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:13,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 02:15:13,387 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:15:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2090989494, now seen corresponding path program 1 times [2021-11-23 02:15:13,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:13,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407610246] [2021-11-23 02:15:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:13,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:15:13,654 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:13,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407610246] [2021-11-23 02:15:13,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407610246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:13,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:13,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:13,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355444353] [2021-11-23 02:15:13,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:13,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:13,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:13,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:13,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:13,657 INFO L87 Difference]: Start difference. First operand 1809 states and 2296 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-23 02:15:17,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:18,776 INFO L93 Difference]: Finished difference Result 2545 states and 3222 transitions. [2021-11-23 02:15:18,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:15:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-23 02:15:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:18,804 INFO L225 Difference]: With dead ends: 2545 [2021-11-23 02:15:18,804 INFO L226 Difference]: Without dead ends: 2383 [2021-11-23 02:15:18,812 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:15:18,813 INFO L933 BasicCegarLoop]: 1173 mSDtfsCounter, 753 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:18,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 3258 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-11-23 02:15:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2021-11-23 02:15:19,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2365. [2021-11-23 02:15:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 1322 states have (on average 1.1588502269288956) internal successors, (1532), 1349 states have internal predecessors, (1532), 726 states have call successors, (726), 311 states have call predecessors, (726), 308 states have return successors, (746), 714 states have call predecessors, (746), 722 states have call successors, (746) [2021-11-23 02:15:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3004 transitions. [2021-11-23 02:15:19,196 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3004 transitions. Word has length 148 [2021-11-23 02:15:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:19,196 INFO L470 AbstractCegarLoop]: Abstraction has 2365 states and 3004 transitions. [2021-11-23 02:15:19,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-23 02:15:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3004 transitions. [2021-11-23 02:15:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-23 02:15:19,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:19,199 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:15:19,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 02:15:19,200 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:15:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:19,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1696547477, now seen corresponding path program 1 times [2021-11-23 02:15:19,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:19,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983155508] [2021-11-23 02:15:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:19,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-23 02:15:19,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:19,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983155508] [2021-11-23 02:15:19,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983155508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:15:19,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:15:19,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:15:19,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666674738] [2021-11-23 02:15:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:15:19,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:15:19,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:15:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:19,551 INFO L87 Difference]: Start difference. First operand 2365 states and 3004 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-23 02:15:23,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:15:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:24,500 INFO L93 Difference]: Finished difference Result 4658 states and 5913 transitions. [2021-11-23 02:15:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:15:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 194 [2021-11-23 02:15:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:24,515 INFO L225 Difference]: With dead ends: 4658 [2021-11-23 02:15:24,516 INFO L226 Difference]: Without dead ends: 2368 [2021-11-23 02:15:24,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:15:24,529 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:24,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2940 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-23 02:15:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-11-23 02:15:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2367. [2021-11-23 02:15:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1324 states have (on average 1.1586102719033233) internal successors, (1534), 1351 states have internal predecessors, (1534), 726 states have call successors, (726), 311 states have call predecessors, (726), 308 states have return successors, (746), 714 states have call predecessors, (746), 722 states have call successors, (746) [2021-11-23 02:15:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3006 transitions. [2021-11-23 02:15:24,928 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3006 transitions. Word has length 194 [2021-11-23 02:15:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:24,929 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 3006 transitions. [2021-11-23 02:15:24,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-23 02:15:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3006 transitions. [2021-11-23 02:15:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-23 02:15:24,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:24,932 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-23 02:15:24,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 02:15:24,932 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-23 02:15:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash 123659729, now seen corresponding path program 1 times [2021-11-23 02:15:24,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:24,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412534483] [2021-11-23 02:15:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:24,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-23 02:15:25,302 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:25,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412534483] [2021-11-23 02:15:25,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412534483] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:15:25,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442498052] [2021-11-23 02:15:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:25,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:15:25,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:15:25,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:15:25,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e56871-805b-4798-9edc-d4772102e030/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:15:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:26,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 4254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:15:26,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:15:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-23 02:15:26,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:15:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-23 02:15:27,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442498052] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:15:27,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1213380246] [2021-11-23 02:15:27,604 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2021-11-23 02:15:27,605 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:15:27,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:15:27,618 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:15:27,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:15:36,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:38,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:38,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:39,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:40,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:40,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:41,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:42,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:43,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:43,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:44,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:45,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:15:45,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-23 02:19:00,560 WARN L227 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 02:19:06,688 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 02:19:21,579 WARN L227 SmtUtils]: Spent 11.91s on a formula simplification. DAG size of input: 5414 DAG size of output: 5414 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 02:19:27,703 WARN L227 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 5573 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 02:19:45,535 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 5415 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:22:39,930 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 5310 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:23:12,907 WARN L227 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 5308 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:23:45,767 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 5306 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:24:18,606 WARN L227 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 5304 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:24:51,604 WARN L227 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 5302 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:25:30,845 WARN L227 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 5303 DAG size of output: 5303 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:26:09,281 WARN L227 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 5298 DAG size of output: 5296 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:26:41,978 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 5296 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)